Merge tag 'v0.13.0rc1' into v0.13.0rc1-ori

tests/entrypoints/test_harmony_utils.py → tests/entrypoints/openai/parser/test_harmony_utils.py

 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
-from openai_harmony import Role
+from openai.types.responses import ResponseFunctionToolCall, ResponseReasoningItem
+from openai.types.responses.response_output_item import McpCall
+from openai_harmony import Author, Message, Role, TextContent
 
-from vllm.entrypoints.harmony_utils import (
+from vllm.entrypoints.openai.parser.harmony_utils import (
     has_custom_tools,
     parse_input_to_harmony_message,
+    parse_output_message,
 )
 
 
@@ -257,6 +260,193 @@ class TestParseInputToHarmonyMessage:
         assert messages[0].content[1].text == "actual text"
 
 
+class TestParseOutputMessage:
+    """Tests for parse_output_message function."""
+
+    def test_commentary_with_no_recipient_creates_reasoning(self):
+        """Test that commentary with recipient=None (preambles) creates reasoning items.
+
+        Per Harmony format, commentary channel can contain preambles to calling
+        multiple functions - explanatory text with no recipient.
+        """
+        message = Message.from_role_and_content(
+            Role.ASSISTANT, "I will now search for the weather information."
+        )
+        message = message.with_channel("commentary")
+        # recipient is None by default, representing a preamble
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 1
+        assert isinstance(output_items[0], ResponseReasoningItem)
+        assert output_items[0].type == "reasoning"
+        assert (
+            output_items[0].content[0].text
+            == "I will now search for the weather information."
+        )
+        assert output_items[0].content[0].type == "reasoning_text"
+
+    def test_commentary_with_function_recipient_creates_function_call(self):
+        """Test commentary with recipient='functions.X' creates function calls."""
+        message = Message.from_role_and_content(
+            Role.ASSISTANT, '{"location": "San Francisco", "units": "celsius"}'
+        )
+        message = message.with_channel("commentary")
+        message = message.with_recipient("functions.get_weather")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 1
+        assert isinstance(output_items[0], ResponseFunctionToolCall)
+        assert output_items[0].type == "function_call"
+        assert output_items[0].name == "get_weather"
+        assert (
+            output_items[0].arguments
+            == '{"location": "San Francisco", "units": "celsius"}'
+        )
+        assert output_items[0].call_id.startswith("call_")
+        assert output_items[0].id.startswith("fc_")
+
+    def test_commentary_with_python_recipient_creates_reasoning(self):
+        """Test that commentary with recipient='python' creates reasoning items."""
+        message = Message.from_role_and_content(
+            Role.ASSISTANT, "import numpy as np\nprint(np.array([1, 2, 3]))"
+        )
+        message = message.with_channel("commentary")
+        message = message.with_recipient("python")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 1
+        assert isinstance(output_items[0], ResponseReasoningItem)
+        assert output_items[0].type == "reasoning"
+        assert (
+            output_items[0].content[0].text
+            == "import numpy as np\nprint(np.array([1, 2, 3]))"
+        )
+
+    def test_commentary_with_browser_recipient_creates_reasoning(self):
+        """Test that commentary with recipient='browser' creates reasoning items."""
+        message = Message.from_role_and_content(
+            Role.ASSISTANT, "Navigating to the specified URL"
+        )
+        message = message.with_channel("commentary")
+        message = message.with_recipient("browser")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 1
+        assert isinstance(output_items[0], ResponseReasoningItem)
+        assert output_items[0].type == "reasoning"
+        assert output_items[0].content[0].text == "Navigating to the specified URL"
+
+    def test_commentary_with_container_recipient_creates_reasoning(self):
+        """Test that commentary with recipient='container' creates reasoning items."""
+        message = Message.from_role_and_content(
+            Role.ASSISTANT, "Running command in container"
+        )
+        message = message.with_channel("commentary")
+        message = message.with_recipient("container")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 1
+        assert isinstance(output_items[0], ResponseReasoningItem)
+        assert output_items[0].type == "reasoning"
+        assert output_items[0].content[0].text == "Running command in container"
+
+    def test_commentary_with_empty_content_and_no_recipient(self):
+        """Test edge case: empty commentary with recipient=None."""
+        message = Message.from_role_and_content(Role.ASSISTANT, "")
+        message = message.with_channel("commentary")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 1
+        assert isinstance(output_items[0], ResponseReasoningItem)
+        assert output_items[0].content[0].text == ""
+
+    def test_commentary_with_multiple_contents_and_no_recipient(self):
+        """Test multiple content items in commentary with no recipient."""
+        contents = [
+            TextContent(text="Step 1: Analyze the request"),
+            TextContent(text="Step 2: Prepare to call functions"),
+        ]
+        message = Message.from_role_and_contents(Role.ASSISTANT, contents)
+        message = message.with_channel("commentary")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 2
+        assert all(isinstance(item, ResponseReasoningItem) for item in output_items)
+        assert output_items[0].content[0].text == "Step 1: Analyze the request"
+        assert output_items[1].content[0].text == "Step 2: Prepare to call functions"
+
+    def test_commentary_with_multiple_function_calls(self):
+        """Test multiple function calls in commentary channel."""
+        contents = [
+            TextContent(text='{"location": "San Francisco"}'),
+            TextContent(text='{"location": "New York"}'),
+        ]
+        message = Message.from_role_and_contents(Role.ASSISTANT, contents)
+        message = message.with_channel("commentary")
+        message = message.with_recipient("functions.get_weather")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 2
+        assert all(isinstance(item, ResponseFunctionToolCall) for item in output_items)
+        assert output_items[0].name == "get_weather"
+        assert output_items[1].name == "get_weather"
+        assert output_items[0].arguments == '{"location": "San Francisco"}'
+        assert output_items[1].arguments == '{"location": "New York"}'
+
+    def test_commentary_with_unknown_recipient_creates_mcp_call(self):
+        """Test that commentary with unknown recipient creates MCP call."""
+        message = Message.from_role_and_content(Role.ASSISTANT, '{"arg": "value"}')
+        message = message.with_channel("commentary")
+        message = message.with_recipient("custom_tool")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 1
+        assert isinstance(output_items[0], McpCall)
+        assert output_items[0].type == "mcp_call"
+        assert output_items[0].name == "custom_tool"
+        assert output_items[0].server_label == "custom_tool"
+
+    def test_analysis_channel_creates_reasoning(self):
+        """Test that analysis channel creates reasoning items."""
+        message = Message.from_role_and_content(
+            Role.ASSISTANT, "Analyzing the problem step by step..."
+        )
+        message = message.with_channel("analysis")
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 1
+        assert isinstance(output_items[0], ResponseReasoningItem)
+        assert output_items[0].type == "reasoning"
+        assert (
+            output_items[0].content[0].text == "Analyzing the problem step by step..."
+        )
+
+    def test_non_assistant_message_returns_empty(self):
+        """Test that non-assistant messages return empty list.
+
+        Per the implementation, tool messages to assistant (e.g., search results)
+        are not included in final output to align with OpenAI behavior.
+        """
+        message = Message.from_author_and_content(
+            Author.new(Role.TOOL, "functions.get_weather"),
+            "The weather is sunny, 72°F",
+        )
+
+        output_items = parse_output_message(message)
+
+        assert len(output_items) == 0
+
+
 def test_has_custom_tools() -> None:
     assert not has_custom_tools(set())
     assert not has_custom_tools({"web_search_preview", "code_interpreter", "container"})
@@ -264,3 +454,167 @@ def test_has_custom_tools() -> None:
     assert has_custom_tools(
         {"web_search_preview", "code_interpreter", "container", "others"}
     )
+
+
+def test_parse_mcp_call_basic() -> None:
+    """Test that MCP calls are parsed with correct type and server_label."""
+    message = Message.from_role_and_content(Role.ASSISTANT, '{"path": "/tmp"}')
+    message = message.with_recipient("filesystem")
+    message = message.with_channel("commentary")
+
+    output_items = parse_output_message(message)
+
+    assert len(output_items) == 1
+    assert isinstance(output_items[0], McpCall)
+    assert output_items[0].type == "mcp_call"
+    assert output_items[0].name == "filesystem"
+    assert output_items[0].server_label == "filesystem"
+    assert output_items[0].arguments == '{"path": "/tmp"}'
+    assert output_items[0].status == "completed"
+
+
+def test_parse_mcp_call_dotted_recipient() -> None:
+    """Test that dotted recipients extract the tool name correctly."""
+    message = Message.from_role_and_content(Role.ASSISTANT, '{"cmd": "ls"}')
+    message = message.with_recipient("repo_browser.list")
+    message = message.with_channel("commentary")
+
+    output_items = parse_output_message(message)
+
+    assert len(output_items) == 1
+    assert isinstance(output_items[0], McpCall)
+    assert output_items[0].name == "list"
+    assert output_items[0].server_label == "repo_browser"
+
+
+def test_mcp_vs_function_call() -> None:
+    """Test that function calls are not parsed as MCP calls."""
+    func_message = Message.from_role_and_content(Role.ASSISTANT, '{"arg": "value"}')
+    func_message = func_message.with_recipient("functions.my_tool")
+    func_message = func_message.with_channel("commentary")
+
+    func_items = parse_output_message(func_message)
+
+    assert len(func_items) == 1
+    assert not isinstance(func_items[0], McpCall)
+    assert func_items[0].type == "function_call"
+
+
+def test_mcp_vs_builtin_tools() -> None:
+    """Test that built-in tools (python, container) are not parsed as MCP calls."""
+    # Test python (built-in tool) - should be reasoning, not MCP
+    python_message = Message.from_role_and_content(Role.ASSISTANT, "print('hello')")
+    python_message = python_message.with_recipient("python")
+    python_message = python_message.with_channel("commentary")
+
+    python_items = parse_output_message(python_message)
+
+    assert len(python_items) == 1
+    assert not isinstance(python_items[0], McpCall)
+    assert python_items[0].type == "reasoning"
+
+
+def test_parse_remaining_state_commentary_channel() -> None:
+    """Test parse_remaining_state with commentary channel and various recipients."""
+    from unittest.mock import Mock
+
+    from vllm.entrypoints.openai.parser.harmony_utils import parse_remaining_state
+
+    # Test 1: functions.* recipient → should return function tool call
+    parser_func = Mock()
+    parser_func.current_content = '{"arg": "value"}'
+    parser_func.current_role = Role.ASSISTANT
+    parser_func.current_channel = "commentary"
+    parser_func.current_recipient = "functions.my_tool"
+
+    func_items = parse_remaining_state(parser_func)
+
+    assert len(func_items) == 1
+    assert not isinstance(func_items[0], McpCall)
+    assert func_items[0].type == "function_call"
+    assert func_items[0].name == "my_tool"
+    assert func_items[0].status == "in_progress"
+
+    # Test 2: MCP tool (not builtin) → should return MCP call
+    parser_mcp = Mock()
+    parser_mcp.current_content = '{"path": "/tmp"}'
+    parser_mcp.current_role = Role.ASSISTANT
+    parser_mcp.current_channel = "commentary"
+    parser_mcp.current_recipient = "filesystem"
+
+    mcp_items = parse_remaining_state(parser_mcp)
+
+    assert len(mcp_items) == 1
+    assert isinstance(mcp_items[0], McpCall)
+    assert mcp_items[0].type == "mcp_call"
+    assert mcp_items[0].name == "filesystem"
+    assert mcp_items[0].server_label == "filesystem"
+    assert mcp_items[0].status == "in_progress"
+
+    # Test 3: Built-in tool (python)
+    # should NOT return MCP call, falls through to reasoning
+    parser_builtin = Mock()
+    parser_builtin.current_content = "print('hello')"
+    parser_builtin.current_role = Role.ASSISTANT
+    parser_builtin.current_channel = "commentary"
+    parser_builtin.current_recipient = "python"
+
+    builtin_items = parse_remaining_state(parser_builtin)
+
+    # Should fall through to reasoning logic
+    assert len(builtin_items) == 1
+    assert not isinstance(builtin_items[0], McpCall)
+    assert builtin_items[0].type == "reasoning"
+
+
+def test_parse_remaining_state_analysis_channel() -> None:
+    """Test parse_remaining_state with analysis channel and various recipients."""
+    from unittest.mock import Mock
+
+    from vllm.entrypoints.openai.parser.harmony_utils import parse_remaining_state
+
+    # Test 1: functions.* recipient → should return function tool call
+    parser_func = Mock()
+    parser_func.current_content = '{"arg": "value"}'
+    parser_func.current_role = Role.ASSISTANT
+    parser_func.current_channel = "analysis"
+    parser_func.current_recipient = "functions.my_tool"
+
+    func_items = parse_remaining_state(parser_func)
+
+    assert len(func_items) == 1
+    assert not isinstance(func_items[0], McpCall)
+    assert func_items[0].type == "function_call"
+    assert func_items[0].name == "my_tool"
+    assert func_items[0].status == "in_progress"
+
+    # Test 2: MCP tool (not builtin) → should return MCP call
+    parser_mcp = Mock()
+    parser_mcp.current_content = '{"query": "test"}'
+    parser_mcp.current_role = Role.ASSISTANT
+    parser_mcp.current_channel = "analysis"
+    parser_mcp.current_recipient = "database"
+
+    mcp_items = parse_remaining_state(parser_mcp)
+
+    assert len(mcp_items) == 1
+    assert isinstance(mcp_items[0], McpCall)
+    assert mcp_items[0].type == "mcp_call"
+    assert mcp_items[0].name == "database"
+    assert mcp_items[0].server_label == "database"
+    assert mcp_items[0].status == "in_progress"
+
+    # Test 3: Built-in tool (container)
+    # should NOT return MCP call, falls through to reasoning
+    parser_builtin = Mock()
+    parser_builtin.current_content = "docker run"
+    parser_builtin.current_role = Role.ASSISTANT
+    parser_builtin.current_channel = "analysis"
+    parser_builtin.current_recipient = "container"
+
+    builtin_items = parse_remaining_state(parser_builtin)
+
+    # Should fall through to reasoning logic
+    assert len(builtin_items) == 1
+    assert not isinstance(builtin_items[0], McpCall)
+    assert builtin_items[0].type == "reasoning"

tests/entrypoints/openai/test_basic.py

@@ -232,7 +232,7 @@ async def test_server_load(server: RemoteOpenAIServer):
 @pytest.mark.asyncio
 async def test_health_check_engine_dead_error():
     # Import the health function directly to test it in isolation
-    from vllm.entrypoints.openai.api_server import health
+    from vllm.entrypoints.serve.instrumentator.health import health
 
     # Create a mock request that simulates what FastAPI would provide
     mock_request = Mock(spec=Request)

tests/entrypoints/openai/test_messages.py

@@ -69,9 +69,20 @@ async def test_anthropic_streaming(client: anthropic.AsyncAnthropic):
         stream=True,
     )
 
+    first_chunk = None
+    chunk_count = 0
     async for chunk in resp:
+        chunk_count += 1
+        if first_chunk is None and chunk.type == "message_start":
+            first_chunk = chunk
         print(chunk.model_dump_json())
 
+    assert chunk_count > 0
+    assert first_chunk is not None, "message_start chunk was never observed"
+    assert first_chunk.usage is not None, "first chunk should include usage stats"
+    assert first_chunk.usage["output_tokens"] == 0
+    assert first_chunk.usage["input_tokens"] > 5
+
 
 @pytest.mark.asyncio
 async def test_anthropic_tool_call(client: anthropic.AsyncAnthropic):

tests/entrypoints/openai/test_response_api_parsable_context.py

+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import importlib
+import json
+
+import pytest
+import pytest_asyncio
+from openai import OpenAI
+
+from ...utils import RemoteOpenAIServer
+
+MODEL_NAME = "Qwen/Qwen3-8B"
+
+
+@pytest.fixture(scope="module")
+def server():
+    assert importlib.util.find_spec("gpt_oss") is not None, (
+        "Harmony tests require gpt_oss package to be installed"
+    )
+
+    args = [
+        "--reasoning-parser",
+        "qwen3",
+        "--max_model_len",
+        "5000",
+        "--structured-outputs-config.backend",
+        "xgrammar",
+        "--enable-auto-tool-choice",
+        "--tool-call-parser",
+        "hermes",
+        "--tool-server",
+        "demo",
+    ]
+    env_dict = dict(
+        VLLM_ENABLE_RESPONSES_API_STORE="1",
+        VLLM_USE_EXPERIMENTAL_PARSER_CONTEXT="1",
+        PYTHON_EXECUTION_BACKEND="dangerously_use_uv",
+    )
+
+    with RemoteOpenAIServer(MODEL_NAME, args, env_dict=env_dict) as remote_server:
+        yield remote_server
+
+
+@pytest_asyncio.fixture
+async def client(server):
+    async with server.get_async_client() as async_client:
+        yield async_client
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+async def test_basic(client: OpenAI, model_name: str):
+    response = await client.responses.create(
+        model=model_name,
+        input="What is 13 * 24?",
+    )
+    assert response is not None
+    print("response: ", response)
+    assert response.status == "completed"
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+async def test_reasoning_and_function_items(client: OpenAI, model_name: str):
+    response = await client.responses.create(
+        model=model_name,
+        input=[
+            {"type": "message", "content": "Hello.", "role": "user"},
+            {
+                "type": "reasoning",
+                "id": "lol",
+                "content": [
+                    {
+                        "type": "reasoning_text",
+                        "text": "We need to respond: greeting.",
+                    }
+                ],
+                "summary": [],
+            },
+            {
+                "arguments": '{"location": "Paris", "unit": "celsius"}',
+                "call_id": "call_5f7b38f3b81e4b8380fd0ba74f3ca3ab",
+                "name": "get_weather",
+                "type": "function_call",
+                "id": "fc_4fe5d6fc5b6c4d6fa5f24cc80aa27f78",
+                "status": "completed",
+            },
+            {
+                "call_id": "call_5f7b38f3b81e4b8380fd0ba74f3ca3ab",
+                "id": "fc_4fe5d6fc5b6c4d6fa5f24cc80aa27f78",
+                "output": "The weather in Paris is 20 Celsius",
+                "status": "completed",
+                "type": "function_call_output",
+            },
+        ],
+        temperature=0.0,
+    )
+    assert response is not None
+    assert response.status == "completed"
+    # make sure we get a reasoning and text output
+    assert response.output[0].type == "reasoning"
+    assert response.output[1].type == "message"
+    assert type(response.output[1].content[0].text) is str
+
+
+def get_horoscope(sign):
+    return f"{sign}: Next Tuesday you will befriend a baby otter."
+
+
+def call_function(name, args):
+    if name == "get_horoscope":
+        return get_horoscope(**args)
+    else:
+        raise ValueError(f"Unknown function: {name}")
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+async def test_function_call_first_turn(client: OpenAI, model_name: str):
+    tools = [
+        {
+            "type": "function",
+            "name": "get_horoscope",
+            "description": "Get today's horoscope for an astrological sign.",
+            "parameters": {
+                "type": "object",
+                "properties": {
+                    "sign": {"type": "string"},
+                },
+                "required": ["sign"],
+                "additionalProperties": False,
+            },
+            "strict": True,
+        }
+    ]
+
+    response = await client.responses.create(
+        model=model_name,
+        input="What is the horoscope for Aquarius today?",
+        tools=tools,
+        temperature=0.0,
+    )
+    assert response is not None
+    assert response.status == "completed"
+    assert len(response.output) == 2
+    assert response.output[0].type == "reasoning"
+    assert response.output[1].type == "function_call"
+
+    function_call = response.output[1]
+    assert function_call.name == "get_horoscope"
+    assert function_call.call_id is not None
+
+    args = json.loads(function_call.arguments)
+    assert "sign" in args
+
+    # the multi turn function call is tested above in
+    # test_reasoning_and_function_items
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+async def test_mcp_tool_call(client: OpenAI, model_name: str):
+    response = await client.responses.create(
+        model=model_name,
+        input="What is 13 * 24? Use python to calculate the result.",
+        tools=[{"type": "code_interpreter", "container": {"type": "auto"}}],
+        temperature=0.0,
+    )
+
+    assert response is not None
+    assert response.status == "completed"
+    assert response.output[0].type == "reasoning"
+    assert response.output[1].type == "mcp_call"
+    assert type(response.output[1].arguments) is str
+    assert type(response.output[1].output) is str
+    assert response.output[2].type == "reasoning"
+    # make sure the correct math is in the final output
+    assert response.output[3].type == "message"
+    assert "312" in response.output[3].content[0].text

tests/entrypoints/openai/test_response_api_simple.py

@@ -42,6 +42,24 @@ async def test_basic(client: OpenAI, model_name: str):
     assert response.status == "completed"
 
 
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+async def test_enable_response_messages(client: OpenAI, model_name: str):
+    response = await client.responses.create(
+        model=model_name,
+        input="Hello?",
+        extra_body={"enable_response_messages": True},
+    )
+    assert response.status == "completed"
+    assert response.input_messages[0]["type"] == "raw_message_tokens"
+    assert type(response.input_messages[0]["message"]) is str
+    assert len(response.input_messages[0]["message"]) > 10
+    assert type(response.input_messages[0]["tokens"][0]) is int
+    assert type(response.output_messages[0]["message"]) is str
+    assert len(response.output_messages[0]["message"]) > 10
+    assert type(response.output_messages[0]["tokens"][0]) is int
+
+
 @pytest.mark.asyncio
 @pytest.mark.parametrize("model_name", [MODEL_NAME])
 async def test_reasoning_item(client: OpenAI, model_name: str):

tests/entrypoints/openai/test_response_api_with_harmony.py

@@ -726,7 +726,7 @@ async def test_function_calling_required(client: OpenAI, model_name: str):
 @pytest.mark.asyncio
 @pytest.mark.parametrize("model_name", [MODEL_NAME])
 async def test_system_message_with_tools(client: OpenAI, model_name: str):
-    from vllm.entrypoints.harmony_utils import get_system_message
+    from vllm.entrypoints.openai.parser.harmony_utils import get_system_message
 
     # Test with custom tools enabled - commentary channel should be available
     sys_msg = get_system_message(with_custom_tools=True)

tests/entrypoints/openai/test_transcription_validation_whisper.py

@@ -32,24 +32,20 @@ async def whisper_client(server):
 
 
 @pytest.mark.asyncio
-async def test_basic_audio(mary_had_lamb):
-    server_args = ["--enforce-eager"]
-
+async def test_basic_audio(whisper_client, mary_had_lamb):
     # Based on https://github.com/openai/openai-cookbook/blob/main/examples/Whisper_prompting_guide.ipynb.
-    with RemoteOpenAIServer(MODEL_NAME, server_args) as remote_server:
-        client = remote_server.get_async_client()
-        transcription = await client.audio.transcriptions.create(
-            model=MODEL_NAME,
-            file=mary_had_lamb,
-            language="en",
-            response_format="text",
-            temperature=0.0,
-        )
-        out = json.loads(transcription)
-        out_text = out["text"]
-        out_usage = out["usage"]
-        assert "Mary had a little lamb," in out_text
-        assert out_usage["seconds"] == 16, out_usage["seconds"]
+    transcription = await whisper_client.audio.transcriptions.create(
+        model=MODEL_NAME,
+        file=mary_had_lamb,
+        language="en",
+        response_format="text",
+        temperature=0.0,
+    )
+    out = json.loads(transcription)
+    out_text = out["text"]
+    out_usage = out["usage"]
+    assert "Mary had a little lamb," in out_text
+    assert out_usage["seconds"] == 16, out_usage["seconds"]
 
 
 @pytest.mark.asyncio

tests/entrypoints/openai/test_vision.py

@@ -8,6 +8,7 @@ import pytest
 import pytest_asyncio
 from transformers import AutoProcessor
 
+from vllm.multimodal.base import MediaWithBytes
 from vllm.multimodal.utils import encode_image_base64, fetch_image
 
 from ...utils import RemoteOpenAIServer
@@ -111,7 +112,11 @@ def get_hf_prompt_tokens(model_name, content, image_url):
             "content": f"{placeholder}{content}",
         }
     ]
-    images = [fetch_image(image_url)]
+    image = fetch_image(image_url)
+    # Unwrap MediaWithBytes if present
+    if isinstance(image, MediaWithBytes):
+        image = image.media
+    images = [image]
 
     prompt = processor.tokenizer.apply_chat_template(
         messages, tokenize=False, add_generation_prompt=True

tests/entrypoints/openai/test_vision_embeds.py

@@ -2,64 +2,47 @@
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 import base64
-import io
 
 import numpy as np
 import pytest
 import requests
 import torch
 
-from ...utils import RemoteOpenAIServer
+from vllm.utils.serial_utils import tensor2base64
 
-MODEL_NAME = "ibm-nasa-geospatial/Prithvi-EO-2.0-300M-TL-Sen1Floods11"
-DTYPE = "float16"
+from ...utils import RemoteOpenAIServer
 
 
-def _terratorch_dummy_inputs(model_name: str):
+def _terratorch_dummy_messages():
     pixel_values = torch.full((6, 512, 512), 1.0, dtype=torch.float16)
     location_coords = torch.full((1, 2), 1.0, dtype=torch.float16)
 
-    buffer_tiff = io.BytesIO()
-    torch.save(pixel_values, buffer_tiff)
-    buffer_tiff.seek(0)
-    binary_data = buffer_tiff.read()
-    base64_tensor_embedding = base64.b64encode(binary_data).decode("utf-8")
-
-    buffer_coord = io.BytesIO()
-    torch.save(location_coords, buffer_coord)
-    buffer_coord.seek(0)
-    binary_data = buffer_coord.read()
-    base64_coord_embedding = base64.b64encode(binary_data).decode("utf-8")
-
-    return {
-        "model": model_name,
-        "additional_data": {"prompt_token_ids": [1]},
-        "encoding_format": "base64",
-        "messages": [
-            {
-                "role": "user",
-                "content": [
-                    {
-                        "type": "image_embeds",
-                        "image_embeds": {
-                            "pixel_values": base64_tensor_embedding,
-                            "location_coords": base64_coord_embedding,
-                        },
-                    }
-                ],
-            }
-        ],
-    }
+    return [
+        {
+            "role": "user",
+            "content": [
+                {
+                    "type": "image_embeds",
+                    "image_embeds": {
+                        "pixel_values": tensor2base64(pixel_values),
+                        "location_coords": tensor2base64(location_coords),
+                    },
+                }
+            ],
+        }
+    ]
 
 
-@pytest.mark.parametrize("model_name", [MODEL_NAME])
-async def test_single_request(model_name: str):
+@pytest.mark.parametrize(
+    "model_name", ["ibm-nasa-geospatial/Prithvi-EO-2.0-300M-TL-Sen1Floods11"]
+)
+def test_single_request(model_name: str):
     args = [
         "--runner",
         "pooling",
         # use half precision for speed and memory savings in CI environment
         "--dtype",
-        DTYPE,
+        "float16",
         "--enforce-eager",
         "--trust-remote-code",
         "--max-num-seqs",
@@ -70,11 +53,15 @@ async def test_single_request(model_name: str):
         "--enable-mm-embeds",
     ]
 
-    with RemoteOpenAIServer(MODEL_NAME, args) as server:
-        prompt = _terratorch_dummy_inputs(model_name)
-
-        # test single pooling
-        response = requests.post(server.url_for("pooling"), json=prompt)
+    with RemoteOpenAIServer(model_name, args) as server:
+        response = requests.post(
+            server.url_for("pooling"),
+            json={
+                "model": model_name,
+                "messages": _terratorch_dummy_messages(),
+                "encoding_format": "base64",
+            },
+        )
         response.raise_for_status()
 
         output = response.json()["data"][0]["data"]

tests/entrypoints/openai/tool_parsers/test_gigachat3_tool_parser.py

+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import json
+
+import pytest
+
+from tests.entrypoints.openai.tool_parsers.utils import (
+    run_tool_extraction,
+    run_tool_extraction_streaming,
+)
+from vllm.entrypoints.openai.protocol import FunctionCall
+from vllm.entrypoints.openai.tool_parsers import ToolParser, ToolParserManager
+from vllm.tokenizers import TokenizerLike
+
+SIMPLE_ARGS_DICT = {
+    "action": "create",
+    "id": "preferences",
+}
+SIMPLE_FUNCTION_JSON = json.dumps(
+    {
+        "name": "manage_user_memory",
+        "arguments": SIMPLE_ARGS_DICT,
+    },
+    ensure_ascii=False,
+)
+SIMPLE_FUNCTION_OUTPUT = "function call" + SIMPLE_FUNCTION_JSON
+SIMPLE_FUNCTION_CALL = FunctionCall(
+    name="manage_user_memory",
+    arguments=json.dumps(SIMPLE_ARGS_DICT, ensure_ascii=False),
+)
+
+
+PARAMETERLESS_FUNCTION_JSON = json.dumps(
+    {
+        "name": "manage_user_memory",
+        "arguments": {},
+    },
+    ensure_ascii=False,
+)
+PARAMETERLESS_FUNCTION_OUTPUT = "function call" + PARAMETERLESS_FUNCTION_JSON
+PARAMETERLESS_FUNCTION_CALL = FunctionCall(
+    name="manage_user_memory",
+    arguments=json.dumps({}, ensure_ascii=False),
+)
+
+
+COMPLEX_ARGS_DICT = {
+    "action": "create",
+    "id": "preferences",
+    "content": {
+        "short_answers": True,
+        "hate_emojis": True,
+        "english_ui": False,
+        "russian_math_explanations": True,
+    },
+}
+COMPLEX_FUNCTION_JSON = json.dumps(
+    {
+        "name": "manage_user_memory",
+        "arguments": COMPLEX_ARGS_DICT,
+    },
+    ensure_ascii=False,
+)
+COMPLEX_FUNCTION_OUTPUT = "function call" + COMPLEX_FUNCTION_JSON
+COMPLEX_FUNCTION_CALL = FunctionCall(
+    name="manage_user_memory",
+    arguments=json.dumps(COMPLEX_ARGS_DICT, ensure_ascii=False),
+)
+
+
+@pytest.mark.parametrize("streaming", [True, False])
+def test_no_tool_call(streaming: bool, default_tokenizer: TokenizerLike):
+    tool_parser: ToolParser = ToolParserManager.get_tool_parser("gigachat3")(
+        default_tokenizer
+    )
+    model_output = "How can I help you today?"
+    content, tool_calls = run_tool_extraction(
+        tool_parser, model_output, streaming=streaming
+    )
+    assert content == model_output
+    assert len(tool_calls) == 0
+
+
+TEST_CASES = [
+    pytest.param(
+        True,
+        SIMPLE_FUNCTION_OUTPUT,
+        [SIMPLE_FUNCTION_CALL],
+        None,
+        id="simple_streaming",
+    ),
+    pytest.param(
+        False,
+        SIMPLE_FUNCTION_OUTPUT,
+        [SIMPLE_FUNCTION_CALL],
+        None,
+        id="simple_nonstreaming",
+    ),
+    pytest.param(
+        True,
+        PARAMETERLESS_FUNCTION_OUTPUT,
+        [PARAMETERLESS_FUNCTION_CALL],
+        None,
+        id="parameterless_streaming",
+    ),
+    pytest.param(
+        False,
+        PARAMETERLESS_FUNCTION_OUTPUT,
+        [PARAMETERLESS_FUNCTION_CALL],
+        None,
+        id="parameterless_nonstreaming",
+    ),
+    pytest.param(
+        True,
+        COMPLEX_FUNCTION_OUTPUT,
+        [COMPLEX_FUNCTION_CALL],
+        None,
+        id="complex_streaming",
+    ),
+    pytest.param(
+        False,
+        COMPLEX_FUNCTION_OUTPUT,
+        [COMPLEX_FUNCTION_CALL],
+        None,
+        id="complex_nonstreaming",
+    ),
+]
+
+
+@pytest.mark.parametrize(
+    "streaming, model_output, expected_tool_calls, expected_content", TEST_CASES
+)
+def test_tool_call(
+    streaming: bool,
+    model_output: str,
+    expected_tool_calls: list[FunctionCall],
+    expected_content: str | None,
+    default_tokenizer: TokenizerLike,
+):
+    tool_parser: ToolParser = ToolParserManager.get_tool_parser("gigachat3")(
+        default_tokenizer
+    )
+    content, tool_calls = run_tool_extraction(
+        tool_parser, model_output, streaming=streaming
+    )
+    assert content == expected_content
+    assert len(tool_calls) == len(expected_tool_calls)
+    for actual, expected in zip(tool_calls, expected_tool_calls):
+        assert actual.type == "function"
+        assert actual.function.name == expected.name
+        actual_args = json.loads(actual.function.arguments)
+        expected_args = json.loads(expected.arguments)
+        assert actual_args == expected_args
+
+
+def test_streaming_tool_call_with_large_steps(default_tokenizer: TokenizerLike):
+    tool_parser: ToolParser = ToolParserManager.get_tool_parser("gigachat3")(
+        default_tokenizer
+    )
+    model_output_deltas = [
+        "function call",
+        COMPLEX_FUNCTION_JSON[:40],
+        COMPLEX_FUNCTION_JSON[40:],
+    ]
+    reconstructor = run_tool_extraction_streaming(
+        tool_parser,
+        model_output_deltas,
+        assert_one_tool_per_delta=False,
+    )
+    assert len(reconstructor.tool_calls) == 1
+    call = reconstructor.tool_calls[0]
+    assert call.type == "function"
+    assert call.function.name == "manage_user_memory"
+    args_dict = json.loads(call.function.arguments)
+    assert args_dict == COMPLEX_ARGS_DICT

tests/entrypoints/openai/tool_parsers/test_openai_tool_parser.py

+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import json
+
+import jsonschema
+import openai
+import pytest
+import pytest_asyncio
+from rapidfuzz import fuzz
+
+from ....utils import RemoteOpenAIServer
+
+MODEL_NAME = "openai/gpt-oss-20b"
+
+
+@pytest.fixture(scope="module")
+def server():
+    args = [
+        "--max-model-len",
+        "8192",
+        "--enforce-eager",
+        "--enable-auto-tool-choice",
+        "--tool-call-parser",
+        "openai",
+    ]
+    with RemoteOpenAIServer(MODEL_NAME, args) as remote_server:
+        yield remote_server
+
+
+@pytest_asyncio.fixture
+async def client(server):
+    """Async fixture providing an OpenAI-compatible vLLM client."""
+    async with server.get_async_client() as async_client:
+        yield async_client
+
+
+# ==========================================================
+# Tool Definitions
+# ==========================================================
+TOOLS = [
+    {
+        "type": "function",
+        "function": {
+            "name": "calculator",
+            "description": "Performs basic arithmetic calculations.",
+            "parameters": {
+                "type": "object",
+                "properties": {
+                    "expression": {
+                        "type": "string",
+                        "description": (
+                            "Arithmetic expression to evaluate, e.g. '123 + 456'."
+                        ),
+                    }
+                },
+                "required": ["expression"],
+            },
+        },
+    },
+    {
+        "type": "function",
+        "function": {
+            "name": "get_time",
+            "description": "Retrieves the current local time for a given city.",
+            "parameters": {
+                "type": "object",
+                "properties": {
+                    "city": {
+                        "type": "string",
+                        "description": "City name, e.g. 'New York'.",
+                    }
+                },
+                "required": ["city"],
+            },
+        },
+    },
+]
+
+
+# ==========================================================
+# Message Examples
+# ==========================================================
+MESSAGES_CALC = [
+    {"role": "user", "content": "Calculate 123 + 456 using the calculator."}
+]
+
+MESSAGES_GET_TIME = [
+    {"role": "user", "content": "What is the current time in New York?"}
+]
+
+MESSAGES_MULTIPLE_CALLS = [
+    {
+        "role": "system",
+        "content": (
+            "You can call multiple tools. "
+            "When using more than one, return single JSON object with tool_calls array"
+            "containing each tool call with its function name and arguments. "
+            "Do not output multiple JSON objects separately."
+        ),
+    },
+    {
+        "role": "user",
+        "content": "First, calculate 7 * 8 using the calculator. "
+        "Then, use get_time to tell me the current time in New York.",
+    },
+]
+
+MESSAGES_INVALID_CALL = [
+    {
+        "role": "user",
+        "content": "Can you help with something, "
+        "but don’t actually perform any calculation?",
+    }
+]
+
+
+# Expected outputs
+FUNC_CALC = "calculator"
+FUNC_ARGS_CALC = '{"expression":"123 + 456"}'
+
+FUNC_TIME = "get_time"
+FUNC_ARGS_TIME = '{"city": "New York"}'
+
+
+# ==========================================================
+# Utility to extract reasoning and tool calls
+# ==========================================================
+def extract_reasoning_and_calls(chunks: list) -> tuple[str, list[str], list[str]]:
+    """
+    Extract accumulated reasoning text and tool call arguments
+    from streaming chunks.
+    """
+    reasoning_content: str = ""
+    tool_calls: dict[int, dict[str, str]] = {}
+
+    for chunk in chunks:
+        choice = getattr(chunk.choices[0], "delta", None)
+        if not choice:
+            continue
+
+        if hasattr(choice, "reasoning_content") and choice.reasoning_content:
+            reasoning_content += choice.reasoning_content
+
+        for tc in getattr(choice, "tool_calls", []) or []:
+            idx = getattr(tc, "index", 0)
+            tool_entry = tool_calls.setdefault(idx, {"name": "", "arguments": ""})
+
+            if getattr(tc, "function", None):
+                func = tc.function
+                if getattr(func, "name", None):
+                    tool_entry["name"] = func.name
+                if getattr(func, "arguments", None):
+                    tool_entry["arguments"] += func.arguments
+
+    function_names: list[str] = [v["name"] for _, v in sorted(tool_calls.items())]
+    arguments: list[str] = [v["arguments"] for _, v in sorted(tool_calls.items())]
+
+    return reasoning_content, arguments, function_names
+
+
+# ==========================================================
+# Test Scenarios
+# ==========================================================
+@pytest.mark.asyncio
+async def test_calculator_tool_call_and_argument_accuracy(client: openai.AsyncOpenAI):
+    """Verify calculator tool call is made and arguments are accurate."""
+
+    response = await client.chat.completions.create(
+        model=MODEL_NAME,
+        messages=MESSAGES_CALC,
+        tools=TOOLS,
+        temperature=0.0,
+        stream=False,
+    )
+
+    message = response.choices[0].message
+    tool_calls = getattr(message, "tool_calls", [])
+    assert tool_calls, "No tool calls detected"
+
+    calc_call = next((c for c in tool_calls if c.function.name == FUNC_CALC), None)
+    assert calc_call, "Calculator function not called"
+
+    raw_args = calc_call.function.arguments
+    assert raw_args, "Calculator arguments missing"
+    assert "123" in raw_args and "456" in raw_args, (
+        f"Expected values not in raw arguments: {raw_args}"
+    )
+
+    try:
+        parsed_args = json.loads(raw_args)
+    except json.JSONDecodeError:
+        pytest.fail(f"Invalid JSON in calculator arguments: {raw_args}")
+
+    expected_expr = "123 + 456"
+    actual_expr = parsed_args.get("expression", "")
+    similarity = fuzz.ratio(actual_expr, expected_expr)
+
+    assert similarity > 90, (
+        f"Expression mismatch: expected '{expected_expr}' "
+        f"got '{actual_expr}' (similarity={similarity}%)"
+    )
+
+
+@pytest.mark.asyncio
+async def test_streaming_tool_call_get_time_with_reasoning(client: openai.AsyncOpenAI):
+    """Verify streamed reasoning and tool call behavior for get_time."""
+
+    stream = await client.chat.completions.create(
+        model=MODEL_NAME,
+        messages=MESSAGES_GET_TIME,
+        tools=TOOLS,
+        temperature=0.0,
+        stream=True,
+    )
+
+    chunks = [chunk async for chunk in stream]
+    reasoning, arguments, function_names = extract_reasoning_and_calls(chunks)
+
+    assert FUNC_TIME in function_names, "get_time function not called"
+
+    assert any("New York" in arg for arg in arguments), (
+        f"Expected get_time arguments for New York not found in {arguments}"
+    )
+
+    assert len(reasoning) > 0, "Expected reasoning content missing"
+
+    assert any(keyword in reasoning for keyword in ["New York", "time", "current"]), (
+        f"Reasoning is not relevant to the request: {reasoning}"
+    )
+
+
+@pytest.mark.asyncio
+async def test_streaming_multiple_tools(client: openai.AsyncOpenAI):
+    """Test streamed multi-tool response with reasoning."""
+    stream = await client.chat.completions.create(
+        model=MODEL_NAME,
+        messages=MESSAGES_MULTIPLE_CALLS,
+        tools=TOOLS,
+        temperature=0.0,
+        stream=True,
+    )
+
+    chunks = [chunk async for chunk in stream]
+    reasoning, arguments, function_names = extract_reasoning_and_calls(chunks)
+
+    try:
+        assert FUNC_CALC in function_names, (
+            f"Calculator tool missing — found {function_names}"
+        )
+        assert FUNC_TIME in function_names, (
+            f"Time tool missing — found {function_names}"
+        )
+        assert len(reasoning) > 0, "Expected reasoning content in streamed response"
+    except AssertionError as e:
+        print(f"ERROR: {e}")
+
+
+@pytest.mark.asyncio
+async def test_invalid_tool_call(client: openai.AsyncOpenAI):
+    """
+    Verify that ambiguous instructions that should not trigger a tool
+    do not produce any tool calls.
+    """
+    response = await client.chat.completions.create(
+        model=MODEL_NAME,
+        messages=MESSAGES_INVALID_CALL,
+        tools=TOOLS,
+        temperature=0.0,
+        stream=False,
+    )
+
+    message = response.choices[0].message
+
+    assert message is not None, "Expected message in response"
+    assert hasattr(message, "content"), "Expected 'content' field in message"
+
+    tool_calls = getattr(message, "tool_calls", [])
+    assert not tool_calls, (
+        f"Model unexpectedly attempted a tool call on invalid input: {tool_calls}"
+    )
+
+
+@pytest.mark.asyncio
+async def test_tool_call_with_temperature(client: openai.AsyncOpenAI):
+    """
+    Verify model produces valid tool or text output
+    under non-deterministic sampling.
+    """
+    response = await client.chat.completions.create(
+        model=MODEL_NAME,
+        messages=MESSAGES_CALC,
+        tools=TOOLS,
+        temperature=0.7,
+        stream=False,
+    )
+
+    message = response.choices[0].message
+    assert message is not None, "Expected non-empty message in response"
+    assert message.tool_calls or message.content, (
+        "Response missing both text and tool calls"
+    )
+
+    print(f"\nTool calls: {message.tool_calls}")
+    print(f"Text: {message.content}")
+
+
+@pytest.mark.asyncio
+async def test_tool_response_schema_accuracy(client: openai.AsyncOpenAI):
+    """Validate that tool call arguments adhere to their declared JSON schema."""
+    response = await client.chat.completions.create(
+        model=MODEL_NAME,
+        messages=MESSAGES_MULTIPLE_CALLS,
+        tools=TOOLS,
+        temperature=0.0,
+    )
+
+    calls = response.choices[0].message.tool_calls
+    assert calls, "No tool calls produced"
+
+    for call in calls:
+        func_name = call.function.name
+        args = json.loads(call.function.arguments)
+
+        schema: dict[str, object] | None = None
+        for tool_entry in TOOLS:
+            function_def = tool_entry.get("function")
+            if (
+                function_def
+                and isinstance(function_def, dict)
+                and function_def.get("name") == func_name
+            ):
+                schema = function_def.get("parameters")
+                break
+
+        assert schema is not None, f"No matching tool schema found for {func_name}"
+
+        jsonschema.validate(instance=args, schema=schema)
+
+
+@pytest.mark.asyncio
+async def test_semantic_consistency_with_temperature(client: openai.AsyncOpenAI):
+    """Test that temperature variation doesn't cause contradictory reasoning."""
+    responses = []
+    for temp in [0.0, 0.5, 1.0]:
+        resp = await client.chat.completions.create(
+            model=MODEL_NAME,
+            messages=MESSAGES_CALC,
+            tools=TOOLS,
+            temperature=temp,
+        )
+        text = (resp.choices[0].message.content or "").strip()
+        responses.append(text)
+
+    # Compare fuzzy similarity between low- and mid-temperature outputs
+    low_mid_sim = fuzz.ratio(responses[0], responses[1])
+    assert low_mid_sim > 60, (
+        f"Semantic drift too large between T=0.0 and T=0.5 ({low_mid_sim}%)"
+    )

tests/entrypoints/pooling/classify/test_offline.py

@@ -61,11 +61,8 @@ def test_pooling_params(llm: LLM):
 
 
 @pytest.mark.skip_global_cleanup
-def test_encode_api(llm: LLM):
-    # chunked prefill does not support all pooling
-    err_msg = "pooling_task must be one of.+"
-    with pytest.raises(ValueError, match=err_msg):
-        llm.encode(prompts, pooling_task="token_classify", use_tqdm=False)
+def test_token_classify(llm: LLM):
+    llm.encode(prompts, pooling_task="token_classify", use_tqdm=False)
 
 
 def test_score_api(llm: LLM):

tests/entrypoints/pooling/classify/test_online.py

@@ -255,21 +255,21 @@ async def test_pooling_classify(server: RemoteOpenAIServer, model_name: str):
 @pytest.mark.asyncio
 @pytest.mark.parametrize("model_name", [MODEL_NAME])
 async def test_pooling_token_classify(server: RemoteOpenAIServer, model_name: str):
-    # token_classify uses ALL pooling, which does not support chunked prefill.
     task = "token_classify"
+    input_text = ["This product was excellent and exceeded my expectations"]
     response = requests.post(
         server.url_for("pooling"),
         json={
             "model": model_name,
-            "input": "test",
+            "input": input_text,
             "encoding_format": "float",
             "task": task,
         },
     )
-    assert response.json()["error"]["type"] == "BadRequestError"
-    assert response.json()["error"]["message"].startswith(
-        f"Task {task} is not supported"
-    )
+    poolings = PoolingResponse.model_validate(response.json())
+    assert len(poolings.data) == 1
+    assert len(poolings.data[0].data) == 8
+    assert len(poolings.data[0].data[0]) == 2
 
 
 @pytest.mark.asyncio

tests/entrypoints/pooling/embed/test_offline.py

@@ -42,7 +42,7 @@ def llm():
 
 
 @pytest.mark.skip_global_cleanup
-def test_encode_api(llm: LLM):
+def test_token_embed(llm: LLM):
     outputs = llm.encode(prompts, pooling_task="token_embed", use_tqdm=False)
     multi_vector = outputs[0].outputs.data
     assert multi_vector.shape == (11, 384)

tests/entrypoints/pooling/embed/test_online.py

@@ -24,6 +24,7 @@ from vllm.utils.serial_utils import (
     ENDIANNESS,
     MetadataItem,
     binary2tensor,
+    build_metadata_items,
     decode_pooling_output,
 )
 
@@ -344,6 +345,55 @@ async def test_bytes_embed_dtype_and_endianness(
             )
 
 
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+async def test_bytes_only_embed_dtype_and_endianness(
+    server: RemoteOpenAIServer, client: openai.AsyncOpenAI, model_name: str
+):
+    input_texts = [
+        "The best thing about vLLM is that it supports many different models",
+    ] * 2
+
+    responses_float = await client.embeddings.create(
+        input=input_texts, model=model_name, encoding_format="float"
+    )
+    float_data = [d.embedding for d in responses_float.data]
+    embedding_size = len(float_data[0])
+
+    for embed_dtype in list(EMBED_DTYPE_TO_TORCH_DTYPE.keys()):
+        for endianness in ENDIANNESS:
+            responses_bytes = requests.post(
+                server.url_for("/v1/embeddings"),
+                json={
+                    "model": model_name,
+                    "input": input_texts,
+                    "encoding_format": "bytes_only",
+                    "embed_dtype": embed_dtype,
+                    "endianness": endianness,
+                },
+            )
+
+            assert "metadata" not in responses_bytes.headers
+            body = responses_bytes.content
+            items = build_metadata_items(
+                embed_dtype=embed_dtype,
+                endianness=endianness,
+                shape=(embedding_size,),
+                n_request=len(input_texts),
+            )
+
+            bytes_data = decode_pooling_output(items=items, body=body)
+            bytes_data = [x.to(torch.float32).tolist() for x in bytes_data]
+
+            check_embeddings_close(
+                embeddings_0_lst=float_data,
+                embeddings_1_lst=bytes_data,
+                name_0="float_data",
+                name_1="bytes_data",
+                tol=1e-2,
+            )
+
+
 @pytest.mark.asyncio
 @pytest.mark.parametrize("model_name", [MODEL_NAME])
 @pytest.mark.parametrize("param_name", ["encoding_format", "embed_dtype", "endianness"])

tests/entrypoints/pooling/embed/test_online_vision.py

@@ -9,6 +9,7 @@ from transformers import AutoProcessor
 
 from tests.utils import VLLM_PATH, RemoteOpenAIServer
 from vllm.entrypoints.pooling.embed.protocol import EmbeddingResponse
+from vllm.multimodal.base import MediaWithBytes
 from vllm.multimodal.utils import encode_image_base64, fetch_image
 
 MODEL_NAME = "TIGER-Lab/VLM2Vec-Full"
@@ -62,7 +63,11 @@ def get_hf_prompt_tokens(model_name, content, image_url):
 
     placeholder = "<|image_1|> "
     prompt = f"{placeholder}{content}"
-    images = [fetch_image(image_url)]
+    image = fetch_image(image_url)
+    # Unwrap MediaWithBytes if present
+    if isinstance(image, MediaWithBytes):
+        image = image.media
+    images = [image]
     inputs = processor(prompt, images, return_tensors="pt")
     return inputs.input_ids.shape[1]
 

tests/entrypoints/pooling/pooling/test_online.py

@@ -18,6 +18,7 @@ from vllm.utils.serial_utils import (
     ENDIANNESS,
     MetadataItem,
     binary2tensor,
+    build_metadata_items,
     decode_pooling_output,
 )
 
@@ -352,6 +353,61 @@ async def test_bytes_embed_dtype_and_endianness(
             )
 
 
+@pytest.mark.asyncio
+@pytest.mark.parametrize("model_name", [MODEL_NAME])
+async def test_bytes_only_embed_dtype_and_endianness(
+    server: RemoteOpenAIServer, model_name: str
+):
+    input_texts = [
+        "The best thing about vLLM is that it supports many different models",
+    ] * 2
+
+    url = server.url_for("pooling")
+    float_response = requests.post(
+        url,
+        json={
+            "model": model_name,
+            "input": input_texts,
+            "encoding_format": "float",
+        },
+    )
+    responses_float = PoolingResponse.model_validate(float_response.json())
+    float_data = [np.array(d.data).squeeze(-1).tolist() for d in responses_float.data]
+    n_tokens = responses_float.usage.prompt_tokens // len(input_texts)
+
+    for embed_dtype in list(EMBED_DTYPE_TO_TORCH_DTYPE.keys()):
+        for endianness in ENDIANNESS:
+            responses_bytes = requests.post(
+                url,
+                json={
+                    "model": model_name,
+                    "input": input_texts,
+                    "encoding_format": "bytes_only",
+                    "embed_dtype": embed_dtype,
+                    "endianness": endianness,
+                },
+            )
+
+            assert "metadata" not in responses_bytes.headers
+            body = responses_bytes.content
+            items = build_metadata_items(
+                embed_dtype=embed_dtype,
+                endianness=endianness,
+                shape=(n_tokens, 1),
+                n_request=len(input_texts),
+            )
+            bytes_data = decode_pooling_output(items=items, body=body)
+            bytes_data = [x.to(torch.float32).view(-1).tolist() for x in bytes_data]
+
+            check_embeddings_close(
+                embeddings_0_lst=float_data,
+                embeddings_1_lst=bytes_data,
+                name_0="float_data",
+                name_1="bytes_data",
+                tol=1e-2,
+            )
+
+
 @pytest.mark.asyncio
 @pytest.mark.parametrize("model_name", [MODEL_NAME])
 @pytest.mark.parametrize("param_name", ["encoding_format", "embed_dtype", "endianness"])

tests/entrypoints/pooling/reward/test_offline.py

@@ -36,6 +36,13 @@ def llm():
     cleanup_dist_env_and_memory()
 
 
+@pytest.mark.skip_global_cleanup
+def test_config(llm: LLM):
+    vllm_config = llm.llm_engine.vllm_config
+    assert vllm_config.cache_config.enable_prefix_caching
+    assert vllm_config.scheduler_config.enable_chunked_prefill
+
+
 def test_pooling_params(llm: LLM):
     def get_outputs(use_activation):
         outputs = llm.reward(

tests/entrypoints/test_chat_utils.py

@@ -6,6 +6,7 @@ from collections.abc import Mapping
 from typing import Literal
 
 import pytest
+import torch
 from mistral_common.tokens.tokenizers.base import SpecialTokenPolicy
 
 from vllm.assets.audio import AudioAsset
@@ -29,6 +30,7 @@ from vllm.multimodal.utils import (
     encode_video_base64,
 )
 from vllm.tokenizers import MistralTokenizer, get_tokenizer
+from vllm.utils.serial_utils import tensor2base64
 
 from ..models.registry import HF_EXAMPLE_MODELS
 from ..utils import VLLM_PATH
@@ -85,11 +87,6 @@ def phi3v_model_config_image_embeds():
     )
 
 
-@pytest.fixture(scope="module")
-def phi3v_tokenizer():
-    return get_tokenizer(PHI3V_MODEL_ID)
-
-
 @pytest.fixture(scope="function")
 def qwen2_audio_model_config():
     return ModelConfig(
@@ -115,11 +112,6 @@ def audio_embeds_model_config():
     )
 
 
-@pytest.fixture(scope="module")
-def qwen2_audio_tokenizer():
-    return get_tokenizer(QWEN2AUDIO_MODEL_ID)
-
-
 @pytest.fixture(scope="function")
 def qwen25omni_model_config_mm_interleaved():
     return ModelConfig(
@@ -134,11 +126,6 @@ def qwen25omni_model_config_mm_interleaved():
     )
 
 
-@pytest.fixture(scope="module")
-def qwen25omni_tokenizer():
-    return get_tokenizer(QWEN25OMNI_MODEL_ID)
-
-
 @pytest.fixture(scope="function")
 def mistral_model_config():
     return ModelConfig(
@@ -150,11 +137,6 @@ def mistral_model_config():
     )
 
 
-@pytest.fixture(scope="module")
-def mistral_tokenizer():
-    return get_tokenizer(MISTRAL_MODEL_ID)
-
-
 @pytest.fixture(scope="module")
 def image_url():
     image = ImageAsset("cherry_blossom")
@@ -239,7 +221,6 @@ def _assert_mm_data_inputs(
 
 def test_parse_chat_messages_single_image(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -253,7 +234,6 @@ def test_parse_chat_messages_single_image(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -266,7 +246,6 @@ def test_parse_chat_messages_single_image(
 
 def test_parse_chat_messages_single_image_with_uuid(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid = str(hash(image_url))
@@ -287,7 +266,6 @@ def test_parse_chat_messages_single_image_with_uuid(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -300,7 +278,6 @@ def test_parse_chat_messages_single_image_with_uuid(
 
 def test_parse_chat_messages_single_empty_image_with_uuid(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid = str(hash(image_url))
@@ -319,7 +296,6 @@ def test_parse_chat_messages_single_empty_image_with_uuid(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -332,7 +308,6 @@ def test_parse_chat_messages_single_empty_image_with_uuid(
 
 def test_parse_chat_messages_single_image_with_bad_uuid_format(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid = str(hash(image_url))
@@ -354,7 +329,6 @@ def test_parse_chat_messages_single_image_with_bad_uuid_format(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -367,7 +341,6 @@ def test_parse_chat_messages_single_image_with_bad_uuid_format(
 
 def test_parse_chat_messages_multiple_images_with_uuids(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid1 = "my_uuid_1"
@@ -397,7 +370,6 @@ def test_parse_chat_messages_multiple_images_with_uuids(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -413,7 +385,6 @@ def test_parse_chat_messages_multiple_images_with_uuids(
 
 def test_parse_chat_messages_multiple_empty_images_with_uuids(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid1 = "my_uuid_1"
@@ -439,7 +410,6 @@ def test_parse_chat_messages_multiple_empty_images_with_uuids(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -455,7 +425,6 @@ def test_parse_chat_messages_multiple_empty_images_with_uuids(
 
 def test_parse_chat_messages_mixed_empty_images_with_uuids(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid1 = "my_uuid_1"
@@ -483,7 +452,6 @@ def test_parse_chat_messages_mixed_empty_images_with_uuids(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -500,7 +468,6 @@ def test_parse_chat_messages_mixed_empty_images_with_uuids(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_single_image_with_uuid_async(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid = str(hash(image_url))
@@ -519,7 +486,6 @@ async def test_parse_chat_messages_single_image_with_uuid_async(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -533,7 +499,6 @@ async def test_parse_chat_messages_single_image_with_uuid_async(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_empty_image_with_uuid_async(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid = str(hash(image_url))
@@ -552,7 +517,6 @@ async def test_parse_chat_messages_empty_image_with_uuid_async(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -566,7 +530,6 @@ async def test_parse_chat_messages_empty_image_with_uuid_async(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_multiple_images_with_uuids_async(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid1 = "my_uuid_1"
@@ -592,7 +555,6 @@ async def test_parse_chat_messages_multiple_images_with_uuids_async(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -609,7 +571,6 @@ async def test_parse_chat_messages_multiple_images_with_uuids_async(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_multiple_empty_images_with_uuids_async(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid1 = "my_uuid_1"
@@ -635,7 +596,6 @@ async def test_parse_chat_messages_multiple_empty_images_with_uuids_async(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -652,7 +612,6 @@ async def test_parse_chat_messages_multiple_empty_images_with_uuids_async(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_multiple_images_with_partial_uuids_async(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid2 = "my_uuid_2"
@@ -676,7 +635,6 @@ async def test_parse_chat_messages_multiple_images_with_partial_uuids_async(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -692,7 +650,6 @@ async def test_parse_chat_messages_multiple_images_with_partial_uuids_async(
 
 def test_parse_chat_messages_empty_system(
     mistral_model_config,
-    mistral_tokenizer,
 ):
     # Test string format
     conversation, _, _ = parse_chat_messages(
@@ -704,7 +661,6 @@ def test_parse_chat_messages_empty_system(
             },
         ],
         mistral_model_config,
-        mistral_tokenizer,
         content_format="string",
     )
     assert conversation == [
@@ -722,7 +678,6 @@ def test_parse_chat_messages_empty_system(
             },
         ],
         mistral_model_config,
-        mistral_tokenizer,
         content_format="openai",
     )
     assert conversation == [
@@ -734,7 +689,6 @@ def test_parse_chat_messages_empty_system(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_single_image_async(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_future, mm_uuids = parse_chat_messages_futures(
@@ -748,7 +702,6 @@ async def test_parse_chat_messages_single_image_async(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -761,7 +714,6 @@ async def test_parse_chat_messages_single_image_async(
 
 def test_parse_chat_messages_multiple_images(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -779,7 +731,6 @@ def test_parse_chat_messages_multiple_images(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -795,7 +746,6 @@ def test_parse_chat_messages_multiple_images(
 
 def test_parse_chat_messages_empty_pil_image_with_uuid(
     phi3v_model_config,
-    phi3v_tokenizer,
 ):
     uuid = "abcd"
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -809,7 +759,6 @@ def test_parse_chat_messages_empty_pil_image_with_uuid(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -825,7 +774,6 @@ def test_parse_chat_messages_empty_pil_image_with_uuid(
 
 def test_parse_chat_messages_empty_image_embeds_with_uuid(
     phi3v_model_config_image_embeds,
-    phi3v_tokenizer,
 ):
     uuid = "abcd"
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -839,7 +787,6 @@ def test_parse_chat_messages_empty_image_embeds_with_uuid(
             }
         ],
         phi3v_model_config_image_embeds,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -857,7 +804,6 @@ def test_parse_chat_messages_empty_image_embeds_with_uuid(
 
 def test_parse_chat_messages_empty_audio_embeds_with_uuid(
     audio_embeds_model_config,
-    qwen2_audio_tokenizer,
 ):
     """Test audio_embeds with UUID (no actual embeds data)."""
     uuid = "test-audio-uuid-123"
@@ -873,7 +819,6 @@ def test_parse_chat_messages_empty_audio_embeds_with_uuid(
             }
         ],
         audio_embeds_model_config,
-        qwen2_audio_tokenizer,
         content_format="string",
     )
 
@@ -889,11 +834,8 @@ def test_parse_chat_messages_empty_audio_embeds_with_uuid(
 
 def test_parse_chat_messages_audio_embeds_with_string(
     audio_embeds_model_config,
-    qwen2_audio_tokenizer,
 ):
     """Test audio_embeds with base64 string embedding data."""
-    import base64
-    import io
 
     import torch
 
@@ -901,11 +843,7 @@ def test_parse_chat_messages_audio_embeds_with_string(
     audio_embedding = torch.randn(1, 128, 768)
 
     # Encode it as base64
-    buffer = io.BytesIO()
-    torch.save(audio_embedding, buffer)
-    buffer.seek(0)
-    binary_data = buffer.read()
-    base64_audio_embedding = base64.b64encode(binary_data).decode("utf-8")
+    base64_audio_embedding = tensor2base64(audio_embedding)
 
     conversation, mm_data, mm_uuids = parse_chat_messages(
         [
@@ -921,7 +859,6 @@ def test_parse_chat_messages_audio_embeds_with_string(
             }
         ],
         audio_embeds_model_config,
-        qwen2_audio_tokenizer,
         content_format="string",
     )
 
@@ -939,11 +876,8 @@ def test_parse_chat_messages_audio_embeds_with_string(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_audio_embeds_async(
     audio_embeds_model_config,
-    qwen2_audio_tokenizer,
 ):
     """Test audio_embeds with async futures."""
-    import base64
-    import io
 
     import torch
 
@@ -951,11 +885,7 @@ async def test_parse_chat_messages_audio_embeds_async(
     audio_embedding = torch.randn(1, 128, 768)
 
     # Encode it as base64
-    buffer = io.BytesIO()
-    torch.save(audio_embedding, buffer)
-    buffer.seek(0)
-    binary_data = buffer.read()
-    base64_audio_embedding = base64.b64encode(binary_data).decode("utf-8")
+    base64_audio_embedding = tensor2base64(audio_embedding)
 
     conversation, mm_future, mm_uuids = parse_chat_messages_futures(
         [
@@ -971,7 +901,6 @@ async def test_parse_chat_messages_audio_embeds_async(
             }
         ],
         audio_embeds_model_config,
-        qwen2_audio_tokenizer,
         content_format="string",
     )
 
@@ -987,10 +916,186 @@ async def test_parse_chat_messages_audio_embeds_async(
     _assert_mm_uuids(mm_uuids, 1, modality="audio", expected_uuids=[None])
 
 
+def test_parse_chat_messages_multiple_image_embeds(
+    phi3v_model_config_image_embeds,
+):
+    """Test that multiple image_embeds in a single message are now supported.
+
+    This test validates the fix for the limitation that previously only allowed
+    one message with {'type': 'image_embeds'}. Now multiple image embeddings
+    can be provided in a single request, similar to regular images.
+    """
+    # Create two sample image embedding tensors
+    image_embedding_1 = torch.randn(256, 1024)
+    image_embedding_2 = torch.randn(128, 1024)
+
+    # Encode them as base64 using the convenience function
+    base64_image_embedding_1 = tensor2base64(image_embedding_1)
+    base64_image_embedding_2 = tensor2base64(image_embedding_2)
+
+    conversation, mm_data, mm_uuids = parse_chat_messages(
+        [
+            {
+                "role": "user",
+                "content": [
+                    {
+                        "type": "image_embeds",
+                        "image_embeds": base64_image_embedding_1,
+                    },
+                    {
+                        "type": "image_embeds",
+                        "image_embeds": base64_image_embedding_2,
+                    },
+                    {"type": "text", "text": "Describe these two images."},
+                ],
+            }
+        ],
+        phi3v_model_config_image_embeds,
+        content_format="string",
+    )
+
+    # Verify conversation structure
+    assert conversation == [
+        {
+            "role": "user",
+            "content": "<|image_1|>\n<|image_2|>\nDescribe these two images.",
+        }
+    ]
+
+    # Verify mm_data contains a list of embeddings (not a single embedding)
+    assert mm_data is not None
+    assert "image" in mm_data
+    assert isinstance(mm_data["image"], list)
+    assert len(mm_data["image"]) == 2
+
+    # Verify each embedding has the correct shape
+    assert isinstance(mm_data["image"][0], torch.Tensor)
+    assert mm_data["image"][0].shape == image_embedding_1.shape
+    assert isinstance(mm_data["image"][1], torch.Tensor)
+    assert mm_data["image"][1].shape == image_embedding_2.shape
+
+    # Verify UUIDs (None since we didn't provide any)
+    _assert_mm_uuids(mm_uuids, 2, expected_uuids=[None, None])
+
+
+def test_parse_chat_messages_multiple_image_embeds_with_uuids(
+    phi3v_model_config_image_embeds,
+):
+    """Test multiple image_embeds with UUIDs.
+
+    This validates that UUIDs are properly tracked for multiple embeddings.
+    """
+    uuid1 = "image-uuid-1"
+    uuid2 = "image-uuid-2"
+
+    conversation, mm_data, mm_uuids = parse_chat_messages(
+        [
+            {
+                "role": "user",
+                "content": [
+                    {
+                        "type": "image_embeds",
+                        "image_embeds": None,
+                        "uuid": uuid1,
+                    },
+                    {
+                        "type": "image_embeds",
+                        "image_embeds": None,
+                        "uuid": uuid2,
+                    },
+                    {"type": "text", "text": "Compare these images."},
+                ],
+            }
+        ],
+        phi3v_model_config_image_embeds,
+        content_format="string",
+    )
+
+    # Verify conversation structure
+    assert conversation == [
+        {
+            "role": "user",
+            "content": "<|image_1|>\n<|image_2|>\nCompare these images.",
+        }
+    ]
+
+    # Verify mm_data contains a list with None values (UUID references)
+    assert mm_data is not None
+    assert "image" in mm_data
+    assert isinstance(mm_data["image"], list)
+    assert len(mm_data["image"]) == 2
+    assert mm_data["image"][0] is None
+    assert mm_data["image"][1] is None
+
+    # Verify UUIDs are correctly tracked
+    _assert_mm_uuids(mm_uuids, 2, expected_uuids=[uuid1, uuid2])
+
+
+@pytest.mark.asyncio
+async def test_parse_chat_messages_multiple_image_embeds_async(
+    phi3v_model_config_image_embeds,
+):
+    """Test multiple image_embeds with async parsing.
+
+    This validates the AsyncMultiModalItemTracker also supports multiple embeddings.
+    """
+    # Create two sample image embedding tensors
+    image_embedding_1 = torch.randn(200, 768)
+    image_embedding_2 = torch.randn(150, 768)
+
+    # Encode them as base64 using the convenience function
+    base64_image_embedding_1 = tensor2base64(image_embedding_1)
+    base64_image_embedding_2 = tensor2base64(image_embedding_2)
+
+    conversation, mm_future, mm_uuids = parse_chat_messages_futures(
+        [
+            {
+                "role": "user",
+                "content": [
+                    {
+                        "type": "image_embeds",
+                        "image_embeds": base64_image_embedding_1,
+                    },
+                    {
+                        "type": "image_embeds",
+                        "image_embeds": base64_image_embedding_2,
+                    },
+                    {"type": "text", "text": "What do these images show?"},
+                ],
+            }
+        ],
+        phi3v_model_config_image_embeds,
+        content_format="string",
+    )
+
+    # Verify conversation structure
+    assert conversation == [
+        {
+            "role": "user",
+            "content": "<|image_1|>\n<|image_2|>\nWhat do these images show?",
+        }
+    ]
+
+    # Await the future and verify mm_data
+    mm_data = await mm_future
+    assert mm_data is not None
+    assert "image" in mm_data
+    assert isinstance(mm_data["image"], list)
+    assert len(mm_data["image"]) == 2
+
+    # Verify each embedding has the correct shape
+    assert isinstance(mm_data["image"][0], torch.Tensor)
+    assert mm_data["image"][0].shape == image_embedding_1.shape
+    assert isinstance(mm_data["image"][1], torch.Tensor)
+    assert mm_data["image"][1].shape == image_embedding_2.shape
+
+    # Verify UUIDs
+    _assert_mm_uuids(mm_uuids, 2, expected_uuids=[None, None])
+
+
 @pytest.mark.asyncio
 async def test_parse_chat_messages_empty_image_embeds_with_uuid_async(
     phi3v_model_config_image_embeds,
-    phi3v_tokenizer,
 ):
     uuid = "abcd"
     conversation, mm_future, mm_uuids = parse_chat_messages_futures(
@@ -1004,7 +1109,6 @@ async def test_parse_chat_messages_empty_image_embeds_with_uuid_async(
             }
         ],
         phi3v_model_config_image_embeds,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1024,7 +1128,6 @@ async def test_parse_chat_messages_empty_image_embeds_with_uuid_async(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_multiple_images_async(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_future, mm_uuids = parse_chat_messages_futures(
@@ -1042,7 +1145,6 @@ async def test_parse_chat_messages_multiple_images_async(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1058,7 +1160,6 @@ async def test_parse_chat_messages_multiple_images_async(
 
 def test_parse_chat_messages_placeholder_already_in_prompt(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -1076,7 +1177,6 @@ def test_parse_chat_messages_placeholder_already_in_prompt(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
     assert conversation == [
@@ -1091,7 +1191,6 @@ def test_parse_chat_messages_placeholder_already_in_prompt(
 
 def test_parse_chat_messages_placeholder_one_already_in_prompt(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -1110,7 +1209,6 @@ def test_parse_chat_messages_placeholder_one_already_in_prompt(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1127,7 +1225,6 @@ def test_parse_chat_messages_placeholder_one_already_in_prompt(
 
 def test_parse_chat_messages_multiple_images_across_messages(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -1149,7 +1246,6 @@ def test_parse_chat_messages_multiple_images_across_messages(
             },
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1164,7 +1260,6 @@ def test_parse_chat_messages_multiple_images_across_messages(
 
 def test_parse_chat_messages_multiple_images_with_uuids_across_messages(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid = str(hash(image_url))
@@ -1195,7 +1290,6 @@ def test_parse_chat_messages_multiple_images_with_uuids_across_messages(
             },
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1210,7 +1304,6 @@ def test_parse_chat_messages_multiple_images_with_uuids_across_messages(
 
 def test_parse_chat_messages_context_text_format(
     phi3v_model_config,
-    phi3v_tokenizer,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
         [
@@ -1222,7 +1315,6 @@ def test_parse_chat_messages_context_text_format(
             {"role": "user", "content": "What about this one?"},
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="openai",
     )
 
@@ -1246,7 +1338,6 @@ def test_parse_chat_messages_context_text_format(
 
 def test_parse_chat_messages_rejects_too_many_images_in_one_message(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     with warnings.catch_warnings():
@@ -1277,14 +1368,12 @@ def test_parse_chat_messages_rejects_too_many_images_in_one_message(
                     }
                 ],
                 phi3v_model_config,
-                phi3v_tokenizer,
                 content_format="string",
             )
 
 
 def test_parse_chat_messages_rejects_too_many_images_across_messages(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     with warnings.catch_warnings():
@@ -1322,14 +1411,12 @@ def test_parse_chat_messages_rejects_too_many_images_across_messages(
                     },
                 ],
                 phi3v_model_config,
-                phi3v_tokenizer,
                 content_format="string",
             )
 
 
 def test_parse_chat_messages_multiple_images_uncommon_input(
     phi3v_model_config,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -1344,7 +1431,6 @@ def test_parse_chat_messages_multiple_images_uncommon_input(
             }
         ],
         phi3v_model_config,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1360,7 +1446,6 @@ def test_parse_chat_messages_multiple_images_uncommon_input(
 
 def test_parse_chat_messages_multiple_images_interleave(
     phi3v_model_config_mm_interleaved,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -1380,7 +1465,6 @@ def test_parse_chat_messages_multiple_images_interleave(
             }
         ],
         phi3v_model_config_mm_interleaved,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1398,7 +1482,6 @@ def test_parse_chat_messages_multiple_images_interleave(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_multiple_images_interleave_async(
     phi3v_model_config_mm_interleaved,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages_futures(
@@ -1418,7 +1501,6 @@ async def test_parse_chat_messages_multiple_images_interleave_async(
             }
         ],
         phi3v_model_config_mm_interleaved,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1436,7 +1518,6 @@ async def test_parse_chat_messages_multiple_images_interleave_async(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_multiple_images_with_uuids_interleave_async(
     phi3v_model_config_mm_interleaved,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid = str(hash(image_url))
@@ -1465,7 +1546,6 @@ async def test_parse_chat_messages_multiple_images_with_uuids_interleave_async(
             }
         ],
         phi3v_model_config_mm_interleaved,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1482,7 +1562,6 @@ async def test_parse_chat_messages_multiple_images_with_uuids_interleave_async(
 
 def test_parse_chat_messages_multiple_images_multiple_messages_interleave(
     phi3v_model_config_mm_interleaved,
-    phi3v_tokenizer,
     image_url,
 ):
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -1505,7 +1584,6 @@ def test_parse_chat_messages_multiple_images_multiple_messages_interleave(
             },
         ],
         phi3v_model_config_mm_interleaved,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1523,7 +1601,6 @@ def test_parse_chat_messages_multiple_images_multiple_messages_interleave(
 
 def test_parse_chat_messages_multiple_images_with_uuids_multiple_messages_interleave(
     phi3v_model_config_mm_interleaved,
-    phi3v_tokenizer,
     image_url,
 ):
     image_uuid = str(hash(image_url))
@@ -1555,7 +1632,6 @@ def test_parse_chat_messages_multiple_images_with_uuids_multiple_messages_interl
             },
         ],
         phi3v_model_config_mm_interleaved,
-        phi3v_tokenizer,
         content_format="string",
     )
 
@@ -1573,7 +1649,6 @@ def test_parse_chat_messages_multiple_images_with_uuids_multiple_messages_interl
 
 def test_parse_chat_messages_multiple_modals_multiple_messages_interleave(
     qwen25omni_model_config_mm_interleaved,
-    qwen25omni_tokenizer,
     image_url,
     video_url,
     audio_url,
@@ -1601,7 +1676,6 @@ def test_parse_chat_messages_multiple_modals_multiple_messages_interleave(
             },
         ],
         qwen25omni_model_config_mm_interleaved,
-        qwen25omni_tokenizer,
         content_format="string",
     )
 
@@ -1627,7 +1701,6 @@ def test_parse_chat_messages_multiple_modals_multiple_messages_interleave(
 
 def test_parse_chat_messages_multiple_modals_with_uuids_multiple_messages_interleave(
     qwen25omni_model_config_mm_interleaved,
-    qwen25omni_tokenizer,
     image_url,
     video_url,
     audio_url,
@@ -1671,7 +1744,6 @@ def test_parse_chat_messages_multiple_modals_with_uuids_multiple_messages_interl
             },
         ],
         qwen25omni_model_config_mm_interleaved,
-        qwen25omni_tokenizer,
         content_format="string",
     )
 
@@ -1699,7 +1771,6 @@ def test_parse_chat_messages_multiple_modals_with_uuids_multiple_messages_interl
 
 def test_parse_chat_messages_multiple_modals_with_uuids_multiple_empty_media_messages_interleave(  # noqa: E501
     qwen25omni_model_config_mm_interleaved,
-    qwen25omni_tokenizer,
     image_url,
     video_url,
     audio_url,
@@ -1743,7 +1814,6 @@ def test_parse_chat_messages_multiple_modals_with_uuids_multiple_empty_media_mes
             },
         ],
         qwen25omni_model_config_mm_interleaved,
-        qwen25omni_tokenizer,
         content_format="string",
     )
 
@@ -1775,7 +1845,6 @@ def test_parse_chat_messages_multiple_modals_with_uuids_multiple_empty_media_mes
 
 def test_parse_chat_messages_multiple_modals_with_partial_uuids_multiple_messages_interleave(  # noqa: E501
     qwen25omni_model_config_mm_interleaved,
-    qwen25omni_tokenizer,
     image_url,
     video_url,
     audio_url,
@@ -1811,7 +1880,6 @@ def test_parse_chat_messages_multiple_modals_with_partial_uuids_multiple_message
             },
         ],
         qwen25omni_model_config_mm_interleaved,
-        qwen25omni_tokenizer,
         content_format="string",
     )
 
@@ -1837,7 +1905,6 @@ def test_parse_chat_messages_multiple_modals_with_partial_uuids_multiple_message
 
 def test_parse_chat_messages_multiple_images_interleave_with_placeholders(
     phi3v_model_config_mm_interleaved,
-    phi3v_tokenizer,
     image_url,
 ):
     with pytest.raises(
@@ -1861,7 +1928,6 @@ def test_parse_chat_messages_multiple_images_interleave_with_placeholders(
                 }
             ],
             phi3v_model_config_mm_interleaved,
-            phi3v_tokenizer,
             content_format="string",
         )
 
@@ -2238,9 +2304,7 @@ def test_resolve_content_format_examples(template_path, expected_format):
     assert resolved_format == expected_format
 
 
-def test_parse_chat_messages_include_thinking_chunk(
-    mistral_model_config, mistral_tokenizer
-):
+def test_parse_chat_messages_include_thinking_chunk(mistral_model_config):
     messages = [
         {
             "role": "system",
@@ -2270,7 +2334,6 @@ def test_parse_chat_messages_include_thinking_chunk(
     conversation_with_thinking, _, _ = parse_chat_messages(
         messages,
         mistral_model_config,
-        mistral_tokenizer,
         content_format="openai",
     )
 
@@ -2354,7 +2417,6 @@ def test_apply_mistral_chat_template_thinking_chunk():
 
 def test_parse_chat_messages_single_empty_audio_with_uuid(
     qwen2_audio_model_config,
-    qwen2_audio_tokenizer,
 ):
     audio_uuid = "abcd"
     conversation, mm_data, mm_uuids = parse_chat_messages(
@@ -2372,7 +2434,6 @@ def test_parse_chat_messages_single_empty_audio_with_uuid(
             }
         ],
         qwen2_audio_model_config,
-        qwen2_audio_tokenizer,
         content_format="string",
     )
 
@@ -2390,7 +2451,6 @@ def test_parse_chat_messages_single_empty_audio_with_uuid(
 @pytest.mark.asyncio
 async def test_parse_chat_messages_single_empty_audio_with_uuid_async(
     qwen2_audio_model_config,
-    qwen2_audio_tokenizer,
 ):
     audio_uuid = "abcd"
     conversation, mm_future, mm_uuids = parse_chat_messages_futures(
@@ -2408,7 +2468,6 @@ async def test_parse_chat_messages_single_empty_audio_with_uuid_async(
             }
         ],
         qwen2_audio_model_config,
-        qwen2_audio_tokenizer,
         content_format="string",
     )