v0.1.4 ready to release

Co-authored-by: Zhekai Zhang <sxtyzhangzk@gmail.com>
Co-authored-by: Muyang Li <lmxyy1999@foxmail.com>
Co-authored-by: Yujun Lin <16437040+synxlin@users.noreply.github.com>

README.md

@@ -6,6 +6,7 @@ Chere [here](https://github.com/mit-han-lab/nunchaku/issues/149) to join our use
 
 ### [Paper](http://arxiv.org/abs/2411.05007) | [Project](https://hanlab.mit.edu/projects/svdquant) | [Blog](https://hanlab.mit.edu/blog/svdquant) | [Demo](https://svdquant.mit.edu)
 
+- **[2025-03-07]** 🚀 **Nunchaku v0.1.4 Released!** We've supported [4-bit text encoder and per-layer CPU offloading](#Low-Memory-Inference), reducing FLUX's minimum memory requirement to just **4 GiB** while maintaining a **2–3× speedup**. This update also fixes various issues related to resolution, LoRA, pin memory, and runtime stability. Check out the release notes for full details!
 - **[2025-02-20]** 🚀 We release the [pre-built wheels](https://huggingface.co/mit-han-lab/nunchaku) to simplify installation! Check [here](#Installation) for the guidance!
 - **[2025-02-20]** 🚀 **Support NVFP4 precision on NVIDIA RTX 5090!** NVFP4 delivers superior image quality compared to INT4, offering **~3× speedup** on the RTX 5090 over BF16. Learn more in our [blog](https://hanlab.mit.edu/blog/svdquant-nvfp4), checkout  [`examples`](./examples) for usage and try [our demo](https://svdquant.mit.edu/flux1-schnell/) online!
 - **[2025-02-18]** 🔥 [**Customized LoRA conversion**](#Customized-LoRA) and [**model quantization**](#Customized-Model-Quantization) instructions are now available! **[ComfyUI](./comfyui)** workflows now support **customized LoRA**, along with **FLUX.1-Tools**!
@@ -45,18 +46,27 @@ SVDQuant is a post-training quantization technique for 4-bit weights and activat
 
 ## Installation
 
-### Wheels (Linux only for now)
+### Wheels (for Linux and Windows WSL)
 
+#### For Windows Users
+To install and use WSL (Windows Subsystem for Linux), follow the instructions [here](https://learn.microsoft.com/en-us/windows/wsl/install). You can also install WSL directly by running the following commands in PowerShell:
+```shell
+wsl --install # install the latest WSL
+wsl # launch WSL
+```
+
+#### Prerequisites for all users
 Before installation, ensure you have [PyTorch>=2.5](https://pytorch.org/) installed. For example, you can use the following command to install PyTorch 2.6:
 
 ```shell
 pip install torch==2.6 torchvision==0.21 torchaudio==2.6
 ```
 
+#### Installing nunchaku
 Once PyTorch is installed, you can directly install `nunchaku` from our [Hugging Face repository](https://huggingface.co/mit-han-lab/nunchaku/tree/main). Be sure to select the appropriate wheel for your Python and PyTorch version. For example, for Python 3.11 and PyTorch 2.6:
 
 ```shell
-pip install https://huggingface.co/mit-han-lab/nunchaku/resolve/main/nunchaku-0.1.3+torch2.6-cp311-cp311-linux_x86_64.whl
+pip install https://huggingface.co/mit-han-lab/nunchaku/resolve/main/nunchaku-0.1.4+torch2.6-cp311-cp311-linux_x86_64.whl
 ```
 
 **Note**: NVFP4 wheels are not currently available because PyTorch has not officially supported CUDA 11.8. To use NVFP4, you will need **Blackwell GPUs (e.g., 50-series GPUs)** and must **build from source**.
@@ -113,7 +123,7 @@ In [examples](examples), we provide minimal scripts for running INT4 [FLUX.1](ht
 import torch
 from diffusers import FluxPipeline
 
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku import NunchakuFluxTransformer2dModel
 
 transformer = NunchakuFluxTransformer2dModel.from_pretrained("mit-han-lab/svdq-int4-flux.1-dev")
 pipeline = FluxPipeline.from_pretrained(
@@ -125,6 +135,28 @@ image.save("flux.1-dev.png")
 
 Specifically, `nunchaku` shares the same APIs as [diffusers](https://github.com/huggingface/diffusers) and can be used in a similar way.
 
+### Low Memory Inference
+
+To further reduce GPU memory usage, you can use our 4-bit T5 encoder along with CPU offloading, requiring a minimum of just 4GiB of memory. The usage is also simple in the diffusers' way. For example, the [script](examples/int4-flux.1-dev-qencoder.py) for FLUX.1-dev is as follows:
+
+```python
+import torch
+from diffusers import FluxPipeline
+
+from nunchaku import NunchakuFluxTransformer2dModel, NunchakuT5EncoderModel
+
+transformer = NunchakuFluxTransformer2dModel.from_pretrained(
+    "mit-han-lab/svdq-int4-flux.1-dev", offload=True
+)  # set offload to False if you want to disable offloading
+text_encoder_2 = NunchakuT5EncoderModel.from_pretrained("mit-han-lab/svdq-flux.1-t5")
+pipeline = FluxPipeline.from_pretrained(
+    "black-forest-labs/FLUX.1-dev", text_encoder_2=text_encoder_2, transformer=transformer, torch_dtype=torch.bfloat16
+).to("cuda")
+pipeline.enable_sequential_cpu_offload()  # remove this line if you want to disable the CPU offloading
+image = pipeline("A cat holding a sign that says hello world", num_inference_steps=50, guidance_scale=3.5).images[0]
+image.save("flux.1-dev.png")
+```
+
 ## Customized LoRA
 
 ![lora](./assets/lora.jpg)
@@ -168,7 +200,7 @@ transformer.set_lora_strength(lora_strength)
 import torch
 from diffusers import FluxPipeline
 
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku import NunchakuFluxTransformer2dModel
 
 transformer = NunchakuFluxTransformer2dModel.from_pretrained("mit-han-lab/svdq-int4-flux.1-dev")
 pipeline = FluxPipeline.from_pretrained(

app/flux.1/depth_canny/run_gradio.py

@@ -12,7 +12,7 @@ from image_gen_aux import DepthPreprocessor
 from PIL import Image
 
 from nunchaku.models.safety_checker import SafetyChecker
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku.models.transformers.transformer_flux import NunchakuFluxTransformer2dModel
 from utils import get_args
 from vars import (
     DEFAULT_GUIDANCE_CANNY,
@@ -57,7 +57,7 @@ else:
     transformer = NunchakuFluxTransformer2dModel.from_pretrained(f"mit-han-lab/svdq-int4-flux.1-{model_name}")
     pipeline_init_kwargs["transformer"] = transformer
     if args.use_qencoder:
-        from nunchaku.models.text_encoder import NunchakuT5EncoderModel
+        from nunchaku.models.text_encoders.t5_encoder import NunchakuT5EncoderModel
 
         text_encoder_2 = NunchakuT5EncoderModel.from_pretrained("mit-han-lab/svdq-flux.1-t5")
         pipeline_init_kwargs["text_encoder_2"] = text_encoder_2

app/flux.1/fill/run_gradio.py

@@ -10,7 +10,7 @@ from diffusers import FluxFillPipeline
 from PIL import Image
 
 from nunchaku.models.safety_checker import SafetyChecker
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku.models.transformers.transformer_flux import NunchakuFluxTransformer2dModel
 from utils import get_args
 from vars import DEFAULT_GUIDANCE, DEFAULT_INFERENCE_STEP, DEFAULT_STYLE_NAME, EXAMPLES, MAX_SEED, STYLE_NAMES, STYLES
 
@@ -29,7 +29,7 @@ else:
     transformer = NunchakuFluxTransformer2dModel.from_pretrained(f"mit-han-lab/svdq-int4-flux.1-fill-dev")
     pipeline_init_kwargs["transformer"] = transformer
     if args.use_qencoder:
-        from nunchaku.models.text_encoder import NunchakuT5EncoderModel
+        from nunchaku.models.text_encoders.t5_encoder import NunchakuT5EncoderModel
 
         text_encoder_2 = NunchakuT5EncoderModel.from_pretrained("mit-han-lab/svdq-flux.1-t5")
         pipeline_init_kwargs["text_encoder_2"] = text_encoder_2

app/flux.1/redux/run_gradio.py

@@ -9,7 +9,7 @@ import torch
 from diffusers import FluxPipeline, FluxPriorReduxPipeline
 from PIL import Image
 
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku.models.transformers.transformer_flux import NunchakuFluxTransformer2dModel
 from utils import get_args
 from vars import DEFAULT_GUIDANCE, DEFAULT_INFERENCE_STEP, EXAMPLES, MAX_SEED
 

app/flux.1/sketch/run_gradio.py

@@ -12,7 +12,7 @@ from PIL import Image
 
 from flux_pix2pix_pipeline import FluxPix2pixTurboPipeline
 from nunchaku.models.safety_checker import SafetyChecker
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku.models.transformers.transformer_flux import NunchakuFluxTransformer2dModel
 from utils import get_args
 from vars import DEFAULT_SKETCH_GUIDANCE, DEFAULT_STYLE_NAME, MAX_SEED, STYLE_NAMES, STYLES
 
@@ -36,7 +36,7 @@ else:
     transformer = NunchakuFluxTransformer2dModel.from_pretrained("mit-han-lab/svdq-int4-flux.1-schnell")
     pipeline_init_kwargs["transformer"] = transformer
     if args.use_qencoder:
-        from nunchaku.models.text_encoder import NunchakuT5EncoderModel
+        from nunchaku.models.text_encoders.t5_encoder import NunchakuT5EncoderModel
 
         text_encoder_2 = NunchakuT5EncoderModel.from_pretrained("mit-han-lab/svdq-flux.1-t5")
         pipeline_init_kwargs["text_encoder_2"] = text_encoder_2

app/flux.1/t2i/evaluate.py

@@ -57,7 +57,7 @@ def main():
     for dataset_name in args.datasets:
         output_dirname = os.path.join(output_root, dataset_name)
         os.makedirs(output_dirname, exist_ok=True)
-        dataset = get_dataset(name=dataset_name)
+        dataset = get_dataset(name=dataset_name, max_dataset_size=8)
         if args.chunk_step > 1:
             dataset = dataset.select(range(args.chunk_start, len(dataset), args.chunk_step))
         for row in tqdm(dataset):

app/flux.1/t2i/utils.py

@@ -2,7 +2,7 @@ import torch
 from diffusers import FluxPipeline
 from peft.tuners import lora
 
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku import NunchakuFluxTransformer2dModel
 from vars import LORA_PATHS, SVDQ_LORA_PATHS
 
 
@@ -32,11 +32,11 @@ def get_pipeline(
             else:
                 assert precision == "fp4"
                 transformer = NunchakuFluxTransformer2dModel.from_pretrained(
-                    "/home/muyang/nunchaku_models/flux.1-schnell-nvfp4-svdq-gptq", precision="fp4"
+                    "mit-han-lab/svdq-fp4-flux.1-schnell", precision="fp4"
                 )
             pipeline_init_kwargs["transformer"] = transformer
             if use_qencoder:
-                from nunchaku.models.text_encoder import NunchakuT5EncoderModel
+                from nunchaku.models.text_encoders.t5_encoder import NunchakuT5EncoderModel
 
                 text_encoder_2 = NunchakuT5EncoderModel.from_pretrained("mit-han-lab/svdq-flux.1-t5")
                 pipeline_init_kwargs["text_encoder_2"] = text_encoder_2
@@ -53,7 +53,7 @@ def get_pipeline(
                 transformer.set_lora_strength(lora_weight)
             pipeline_init_kwargs["transformer"] = transformer
             if use_qencoder:
-                from nunchaku.models.text_encoder import NunchakuT5EncoderModel
+                from nunchaku.models.text_encoders.t5_encoder import NunchakuT5EncoderModel
 
                 text_encoder_2 = NunchakuT5EncoderModel.from_pretrained("mit-han-lab/svdq-flux.1-t5")
                 pipeline_init_kwargs["text_encoder_2"] = text_encoder_2

app/sana/t2i/utils.py

 import torch
 from diffusers import SanaPAGPipeline
 
-from nunchaku.models.transformer_sana import NunchakuSanaTransformer2DModel
+from nunchaku.models.transformers.transformer_sana import NunchakuSanaTransformer2DModel
 
 
 def hash_str_to_int(s: str) -> int:
@@ -30,7 +30,7 @@ def get_pipeline(
         variant="bf16",
         torch_dtype=torch.bfloat16,
         pag_applied_layers="transformer_blocks.8",
-        **pipeline_init_kwargs
+        **pipeline_init_kwargs,
     )
     if precision == "int4":
         pipeline._set_pag_attn_processor = lambda *args, **kwargs: None

comfyui/README.md

@@ -70,8 +70,6 @@ comfy node registry-install svdquant
 
      * Install missing nodes (e.g., comfyui-inpainteasy) following [this tutorial](https://github.com/ltdrdata/ComfyUI-Manager?tab=readme-ov-file#support-of-missing-nodes-installation).
 
-
-
 2. **Download Required Models**: Follow [this tutorial](https://comfyanonymous.github.io/ComfyUI_examples/flux/) and download the required models into the appropriate directories using the commands below:
 
    ```shell
@@ -92,7 +90,7 @@ comfy node registry-install svdquant
 
 * **SVDQuant Flux DiT Loader**: A node for loading the FLUX diffusion model. 
 
-  * `model_path`: Specifies the model location. If set to `mit-han-lab/svdq-int4-flux.1-schnell`, `mit-han-lab/svdq-int4-flux.1-dev`, `mit-han-lab/svdq-int4-flux.1-canny-dev`, `mit-han-lab/svdq-int4-flux.1-fill-dev` or `mit-han-lab/svdq-int4-flux.1-depth-dev`, the model will be automatically downloaded from our Hugging Face repository. Alternatively, you can manually download the model directory by running the following command example:
+  * `model_path`: Specifies the model location. If set to the folder starting with `mit-han-lab`, the model will be automatically downloaded from our Hugging Face repository. Alternatively, you can manually download the model directory by running the following command example:
 
     ```shell
     huggingface-cli download mit-han-lab/svdq-int4-flux.1-dev --local-dir models/diffusion_models/svdq-int4-flux.1-dev
@@ -100,6 +98,8 @@ comfy node registry-install svdquant
 
      After downloading, specify the corresponding folder name as the `model_path`.
 
+  * `cpu_offload`: Enables CPU offloading for the transformer model. While this may reduce GPU memory usage, it can slow down inference. Memory usage will be further optimized in node v0.1.6.
+
   * `device_id`: Indicates the GPU ID for running the model.
 
 * **SVDQuant FLUX LoRA Loader**: A node for loading LoRA modules for SVDQuant FLUX models.

comfyui/nodes/lora/flux.py

@@ -4,10 +4,7 @@ import tempfile
 import folder_paths
 from safetensors.torch import save_file
 
-from nunchaku.lora.flux.comfyui_converter import comfyui2diffusers
-from nunchaku.lora.flux.diffusers_converter import convert_to_nunchaku_flux_lowrank_dict
-from nunchaku.lora.flux.utils import detect_format
-from nunchaku.lora.flux.xlab_converter import xlab2diffusers
+from nunchaku.lora.flux import comfyui2diffusers, convert_to_nunchaku_flux_lowrank_dict, detect_format, xlab2diffusers
 
 
 class SVDQuantFluxLoraLoader:
@@ -25,6 +22,8 @@ class SVDQuantFluxLoraLoader:
         base_model_paths = [
             "mit-han-lab/svdq-int4-flux.1-dev",
             "mit-han-lab/svdq-int4-flux.1-schnell",
+            "mit-han-lab/svdq-fp4-flux.1-dev",
+            "mit-han-lab/svdq-fp4-flux.1-schnell",
             "mit-han-lab/svdq-int4-flux.1-canny-dev",
             "mit-han-lab/svdq-int4-flux.1-depth-dev",
             "mit-han-lab/svdq-int4-flux.1-fill-dev",

comfyui/nodes/models/flux.py

@@ -10,7 +10,7 @@ from diffusers import FluxTransformer2DModel
 from einops import rearrange, repeat
 from torch import nn
 
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku import NunchakuFluxTransformer2dModel
 
 
 class ComfyUIFluxForwardWrapper(nn.Module):
@@ -67,31 +67,53 @@ class ComfyUIFluxForwardWrapper(nn.Module):
 class SVDQuantFluxDiTLoader:
     @classmethod
     def INPUT_TYPES(s):
-        # folder_paths.get_filename_list("loras"),
         model_paths = [
             "mit-han-lab/svdq-int4-flux.1-schnell",
             "mit-han-lab/svdq-int4-flux.1-dev",
+            "mit-han-lab/svdq-fp4-flux.1-schnell",
+            "mit-han-lab/svdq-fp4-flux.1-dev",
             "mit-han-lab/svdq-int4-flux.1-canny-dev",
             "mit-han-lab/svdq-int4-flux.1-depth-dev",
             "mit-han-lab/svdq-int4-flux.1-fill-dev",
         ]
-        prefix = os.path.join(folder_paths.models_dir, "diffusion_models")
-        local_folders = os.listdir(prefix)
-        local_folders = sorted(
-            [
+        prefixes = folder_paths.folder_names_and_paths["diffusion_models"][0]
+        local_folders = set()
+        for prefix in prefixes:
+            if os.path.exists(prefix) and os.path.isdir(prefix):
+                local_folders_ = os.listdir(prefix)
+                local_folders_ = [
                     folder
-                for folder in local_folders
+                    for folder in local_folders_
                     if not folder.startswith(".") and os.path.isdir(os.path.join(prefix, folder))
                 ]
-        )
+                local_folders.update(local_folders_)
+        local_folders = sorted(list(local_folders))
         model_paths = local_folders + model_paths
         ngpus = len(GPUtil.getGPUs())
         return {
             "required": {
-                "model_path": (model_paths,),
+                "model_path": (
+                    model_paths,
+                    {"tooltip": "The SVDQuant quantized FLUX.1 models. It can be a huggingface path or a local path."},
+                ),
+                "cpu_offload": (
+                    ["enable", "disable"],
+                    {
+                        "default": "disable",
+                        "tooltip": "Whether to enable CPU offload for the transformer model. This may slow down the inference, but may reduce the GPU memory usage.",
+                    },
+                ),
                 "device_id": (
                     "INT",
-                    {"default": 0, "min": 0, "max": ngpus, "step": 1, "display": "number", "lazy": True},
+                    {
+                        "default": 0,
+                        "min": 0,
+                        "max": ngpus,
+                        "step": 1,
+                        "display": "number",
+                        "lazy": True,
+                        "tooltip": "The GPU device ID to use for the model.",
+                    },
                 ),
             }
         }
@@ -101,14 +123,15 @@ class SVDQuantFluxDiTLoader:
     CATEGORY = "SVDQuant"
     TITLE = "SVDQuant Flux DiT Loader"
 
-    def load_model(self, model_path: str, device_id: int, **kwargs) -> tuple[FluxTransformer2DModel]:
+    def load_model(self, model_path: str, cpu_offload: str, device_id: int, **kwargs) -> tuple[FluxTransformer2DModel]:
         device = f"cuda:{device_id}"
-        prefix = os.path.join(folder_paths.models_dir, "diffusion_models")
+        prefixes = folder_paths.folder_names_and_paths["diffusion_models"][0]
+        for prefix in prefixes:
             if os.path.exists(os.path.join(prefix, model_path)):
                 model_path = os.path.join(prefix, model_path)
-        else:
-            model_path = model_path
-        transformer = NunchakuFluxTransformer2dModel.from_pretrained(model_path).to(device)
+                break
+        transformer = NunchakuFluxTransformer2dModel.from_pretrained(model_path, offload=cpu_offload == "enable")
+        transformer = transformer.to(device)
         dit_config = {
             "image_model": "flux",
             "patch_size": 2,

comfyui/nodes/models/text_encoder.py

@@ -4,39 +4,60 @@ import types
 import comfy.sd
 import folder_paths
 import torch
+from torch import nn
 from transformers import T5EncoderModel
 
+from nunchaku import NunchakuT5EncoderModel
+
 
 def svdquant_t5_forward(
     self: T5EncoderModel,
     input_ids: torch.LongTensor,
     attention_mask,
+    embeds=None,
     intermediate_output=None,
     final_layer_norm_intermediate=True,
     dtype: str | torch.dtype = torch.bfloat16,
+    **kwargs,
 ):
     assert attention_mask is None
     assert intermediate_output is None
     assert final_layer_norm_intermediate
-    outputs = self.encoder(input_ids, attention_mask=attention_mask)
+    outputs = self.encoder(input_ids=input_ids, inputs_embeds=embeds, attention_mask=attention_mask)
     hidden_states = outputs["last_hidden_state"]
     hidden_states = hidden_states.to(dtype=dtype)
     return hidden_states, None
 
 
+class WrappedEmbedding(nn.Module):
+    def __init__(self, embedding: nn.Embedding):
+        super().__init__()
+        self.embedding = embedding
+
+    def forward(self, input: torch.Tensor, out_dtype: torch.dtype | None = None):
+        return self.embedding(input)
+
+    @property
+    def weight(self):
+        return self.embedding.weight
+
+
 class SVDQuantTextEncoderLoader:
     @classmethod
     def INPUT_TYPES(s):
         model_paths = ["mit-han-lab/svdq-flux.1-t5"]
-        prefix = os.path.join(folder_paths.models_dir, "text_encoders")
-        local_folders = os.listdir(prefix)
-        local_folders = sorted(
-            [
+        prefixes = folder_paths.folder_names_and_paths["text_encoders"][0]
+        local_folders = set()
+        for prefix in prefixes:
+            if os.path.exists(prefix) and os.path.isdir(prefix):
+                local_folders_ = os.listdir(prefix)
+                local_folders_ = [
                     folder
-                for folder in local_folders
+                    for folder in local_folders_
                     if not folder.startswith(".") and os.path.isdir(os.path.join(prefix, folder))
                 ]
-        )
+                local_folders.update(local_folders_)
+        local_folders = sorted(list(local_folders))
         model_paths.extend(local_folders)
         return {
             "required": {
@@ -45,14 +66,7 @@ class SVDQuantTextEncoderLoader:
                 "text_encoder2": (folder_paths.get_filename_list("text_encoders"),),
                 "t5_min_length": (
                     "INT",
-                    {
-                        "default": 512,
-                        "min": 256,
-                        "max": 1024,
-                        "step": 128,
-                        "display": "number",
-                        "lazy": True,
-                    },
+                    {"default": 512, "min": 256, "max": 1024, "step": 128, "display": "number", "lazy": True},
                 ),
                 "t5_precision": (["BF16", "INT4"],),
                 "int4_model": (model_paths, {"tooltip": "The name of the INT4 model."}),
@@ -92,20 +106,23 @@ class SVDQuantTextEncoderLoader:
             clip.tokenizer.t5xxl.min_length = t5_min_length
 
         if t5_precision == "INT4":
-            from nunchaku.models.text_encoder import NunchakuT5EncoderModel
-
             transformer = clip.cond_stage_model.t5xxl.transformer
             param = next(transformer.parameters())
             dtype = param.dtype
             device = param.device
 
-            prefix = "models/text_encoders"
+            prefixes = folder_paths.folder_names_and_paths["diffusion_models"][0]
+            model_path = None
+            for prefix in prefixes:
                 if os.path.exists(os.path.join(prefix, int4_model)):
                     model_path = os.path.join(prefix, int4_model)
-            else:
+                    break
+            if model_path is None:
                 model_path = int4_model
             transformer = NunchakuT5EncoderModel.from_pretrained(model_path)
             transformer.forward = types.MethodType(svdquant_t5_forward, transformer)
+            transformer.shared = WrappedEmbedding(transformer.shared)
+
             clip.cond_stage_model.t5xxl.transformer = (
                 transformer.to(device=device, dtype=dtype) if device.type == "cuda" else transformer
             )

comfyui/pyproject.toml

 [project]
 name = "svdquant"
-description = "SVDQuant ComfyUI Node. SVDQuant is a new post-training training quantization paradigm for diffusion models, which quantize both the weights and activations of FLUX.1 to 4 bits, achieving 3.5× memory and 8.7× latency reduction on a 16GB laptop 4090 GPU."
-version = "0.1.3"
+description = "SVDQuant ComfyUI Node. SVDQuant is a new post-training training quantization paradigm for diffusion models, which quantize both the weights and activations of FLUX.1 to 4 bits, achieving 3.5× memory and 8.7× latency reduction on a 16GB laptop 4090 GPU. GitHub: https://github.com/mit-han-lab/nunchaku"
+version = "0.1.5"
 license = { file = "LICENSE.txt" }
 dependencies = []
-requires-python = ">=3.11, <3.13"
+requires-python = ">=3.10, <3.13"
 
-[project.urls]
-Repository = "https://github.com/mit-han-lab/nunchaku"
+#[project.urls]
+#Repository = "https://github.com/mit-han-lab/nunchaku"
 #  Used by Comfy Registry https://comfyregistry.org
 
 [tool.comfy]

comfyui/workflows/svdq-flux.1-canny.json

@@ -19,45 +19,50 @@
       "inputs": [
         {
           "name": "model",
+          "localized_name": "model",
+          "label": "model",
           "type": "MODEL",
-          "link": 71,
-          "label": "model"
+          "link": 71
         },
         {
           "name": "positive",
+          "localized_name": "positive",
+          "label": "positive",
           "type": "CONDITIONING",
-          "link": 64,
-          "label": "positive"
+          "link": 64
         },
         {
           "name": "negative",
+          "localized_name": "negative",
+          "label": "negative",
           "type": "CONDITIONING",
-          "link": 65,
-          "label": "negative"
+          "link": 65
         },
         {
           "name": "latent_image",
+          "localized_name": "latent_image",
+          "label": "latent_image",
           "type": "LATENT",
-          "link": 66,
-          "label": "latent_image"
+          "link": 66
         }
       ],
       "outputs": [
         {
           "name": "LATENT",
+          "localized_name": "LATENT",
+          "label": "LATENT",
           "type": "LATENT",
           "links": [
             7
           ],
-          "slot_index": 0,
-          "label": "LATENT"
+          "slot_index": 0
         }
       ],
       "properties": {
         "Node name for S&R": "KSampler"
       },
       "widgets_values": [
-        896617285614695,
+        875054580097021,
         "randomize",
         20,
         1,
@@ -83,56 +88,63 @@
       "inputs": [
         {
           "name": "positive",
+          "localized_name": "positive",
+          "label": "positive",
           "type": "CONDITIONING",
-          "link": 67,
-          "label": "positive"
+          "link": 67
         },
         {
           "name": "negative",
+          "localized_name": "negative",
+          "label": "negative",
           "type": "CONDITIONING",
-          "link": 68,
-          "label": "negative"
+          "link": 68
         },
         {
           "name": "vae",
+          "localized_name": "vae",
+          "label": "vae",
           "type": "VAE",
-          "link": 69,
-          "label": "vae"
+          "link": 69
         },
         {
           "name": "pixels",
+          "localized_name": "pixels",
+          "label": "pixels",
           "type": "IMAGE",
-          "link": 70,
-          "label": "pixels"
+          "link": 70
         }
       ],
       "outputs": [
         {
           "name": "positive",
+          "localized_name": "positive",
+          "label": "positive",
           "type": "CONDITIONING",
           "links": [
             64
           ],
-          "slot_index": 0,
-          "label": "positive"
+          "slot_index": 0
         },
         {
           "name": "negative",
+          "localized_name": "negative",
+          "label": "negative",
           "type": "CONDITIONING",
           "links": [
             65
           ],
-          "slot_index": 1,
-          "label": "negative"
+          "slot_index": 1
         },
         {
           "name": "latent",
+          "localized_name": "latent",
+          "label": "latent",
           "type": "LATENT",
           "links": [
             66
           ],
-          "slot_index": 2,
-          "label": "latent"
+          "slot_index": 2
         }
       ],
       "properties": {
@@ -157,26 +169,29 @@
       "inputs": [
         {
           "name": "samples",
+          "localized_name": "samples",
+          "label": "samples",
           "type": "LATENT",
-          "link": 7,
-          "label": "samples"
+          "link": 7
         },
         {
           "name": "vae",
+          "localized_name": "vae",
+          "label": "vae",
           "type": "VAE",
-          "link": 60,
-          "label": "vae"
+          "link": 60
         }
       ],
       "outputs": [
         {
           "name": "IMAGE",
+          "localized_name": "IMAGE",
+          "label": "IMAGE",
           "type": "IMAGE",
           "links": [
             9
           ],
-          "slot_index": 0,
-          "label": "IMAGE"
+          "slot_index": 0
         }
       ],
       "properties": {
@@ -201,9 +216,10 @@
       "inputs": [
         {
           "name": "images",
+          "localized_name": "images",
+          "label": "images",
           "type": "IMAGE",
-          "link": 9,
-          "label": "images"
+          "link": 9
         }
       ],
       "outputs": [],
@@ -230,13 +246,14 @@
       "outputs": [
         {
           "name": "VAE",
+          "localized_name": "VAE",
+          "label": "VAE",
           "type": "VAE",
           "links": [
             60,
             69
           ],
-          "slot_index": 0,
-          "label": "VAE"
+          "slot_index": 0
         }
       ],
       "properties": {
@@ -263,21 +280,23 @@
       "inputs": [
         {
           "name": "conditioning",
+          "localized_name": "conditioning",
+          "label": "conditioning",
           "type": "CONDITIONING",
-          "link": 41,
-          "label": "conditioning"
+          "link": 41
         }
       ],
       "outputs": [
         {
           "name": "CONDITIONING",
+          "localized_name": "CONDITIONING",
+          "label": "CONDITIONING",
           "type": "CONDITIONING",
+          "shape": 3,
           "links": [
             67
           ],
-          "slot_index": 0,
-          "shape": 3,
-          "label": "CONDITIONING"
+          "slot_index": 0
         }
       ],
       "properties": {
@@ -296,7 +315,7 @@
       ],
       "size": [
         315,
-        106
+        122
       ],
       "flags": {},
       "order": 1,
@@ -305,12 +324,13 @@
       "outputs": [
         {
           "name": "CLIP",
+          "localized_name": "CLIP",
+          "label": "CLIP",
           "type": "CLIP",
           "links": [
             62,
             63
-          ],
-          "label": "CLIP"
+          ]
         }
       ],
       "properties": {
@@ -340,20 +360,22 @@
       "inputs": [
         {
           "name": "clip",
+          "localized_name": "clip",
+          "label": "clip",
           "type": "CLIP",
-          "link": 62,
-          "label": "clip"
+          "link": 62
         }
       ],
       "outputs": [
         {
           "name": "CONDITIONING",
+          "localized_name": "CONDITIONING",
+          "label": "CONDITIONING",
           "type": "CONDITIONING",
           "links": [
             41
           ],
-          "slot_index": 0,
-          "label": "CONDITIONING"
+          "slot_index": 0
         }
       ],
       "title": "CLIP Text Encode (Positive Prompt)",
@@ -383,9 +405,10 @@
       "inputs": [
         {
           "name": "images",
+          "localized_name": "images",
+          "label": "images",
           "type": "IMAGE",
-          "link": 26,
-          "label": "images"
+          "link": 26
         }
       ],
       "outputs": [],
@@ -411,22 +434,24 @@
       "inputs": [
         {
           "name": "image",
+          "localized_name": "image",
+          "label": "image",
           "type": "IMAGE",
-          "link": 76,
-          "label": "image"
+          "link": 76
         }
       ],
       "outputs": [
         {
           "name": "IMAGE",
+          "localized_name": "IMAGE",
+          "label": "IMAGE",
           "type": "IMAGE",
+          "shape": 3,
           "links": [
             26,
             70
           ],
-          "slot_index": 0,
-          "shape": 3,
-          "label": "IMAGE"
+          "slot_index": 0
         }
       ],
       "properties": {
@@ -454,6 +479,7 @@
       "inputs": [
         {
           "name": "image",
+          "localized_name": "image",
           "type": "IMAGE",
           "link": 75
         }
@@ -461,6 +487,7 @@
       "outputs": [
         {
           "name": "IMAGE",
+          "localized_name": "IMAGE",
           "type": "IMAGE",
           "links": [
             76
@@ -478,48 +505,6 @@
         "center"
       ]
     },
-    {
-      "id": 17,
-      "type": "LoadImage",
-      "pos": [
-        6.694743633270264,
-        562.3865966796875
-      ],
-      "size": [
-        315,
-        314.0000305175781
-      ],
-      "flags": {},
-      "order": 2,
-      "mode": 0,
-      "inputs": [],
-      "outputs": [
-        {
-          "name": "IMAGE",
-          "type": "IMAGE",
-          "links": [
-            75
-          ],
-          "slot_index": 0,
-          "shape": 3,
-          "label": "IMAGE"
-        },
-        {
-          "name": "MASK",
-          "type": "MASK",
-          "links": null,
-          "shape": 3,
-          "label": "MASK"
-        }
-      ],
-      "properties": {
-        "Node name for S&R": "LoadImage"
-      },
-      "widgets_values": [
-        "robot.png",
-        "image"
-      ]
-    },
     {
       "id": 7,
       "type": "CLIPTextEncode",
@@ -539,20 +524,22 @@
       "inputs": [
         {
           "name": "clip",
+          "localized_name": "clip",
+          "label": "clip",
           "type": "CLIP",
-          "link": 63,
-          "label": "clip"
+          "link": 63
         }
       ],
       "outputs": [
         {
           "name": "CONDITIONING",
+          "localized_name": "CONDITIONING",
+          "label": "CONDITIONING",
           "type": "CONDITIONING",
           "links": [
             68
           ],
-          "slot_index": 0,
-          "label": "CONDITIONING"
+          "slot_index": 0
         }
       ],
       "title": "CLIP Text Encode (Negative Prompt)",
@@ -565,6 +552,50 @@
       "color": "#322",
       "bgcolor": "#533"
     },
+    {
+      "id": 17,
+      "type": "LoadImage",
+      "pos": [
+        6.694743633270264,
+        562.3865966796875
+      ],
+      "size": [
+        315,
+        314.0000305175781
+      ],
+      "flags": {},
+      "order": 2,
+      "mode": 0,
+      "inputs": [],
+      "outputs": [
+        {
+          "name": "IMAGE",
+          "localized_name": "IMAGE",
+          "label": "IMAGE",
+          "type": "IMAGE",
+          "shape": 3,
+          "links": [
+            75
+          ],
+          "slot_index": 0
+        },
+        {
+          "name": "MASK",
+          "localized_name": "MASK",
+          "label": "MASK",
+          "type": "MASK",
+          "shape": 3,
+          "links": null
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "LoadImage"
+      },
+      "widgets_values": [
+        "robot.png",
+        "image"
+      ]
+    },
     {
       "id": 36,
       "type": "SVDQuantFluxDiTLoader",
@@ -574,7 +605,7 @@
       ],
       "size": [
         395.6002197265625,
-        105.77959442138672
+        106
       ],
       "flags": {},
       "order": 3,
@@ -583,6 +614,7 @@
       "outputs": [
         {
           "name": "MODEL",
+          "localized_name": "MODEL",
           "type": "MODEL",
           "links": [
             71
@@ -595,6 +627,7 @@
       },
       "widgets_values": [
         "mit-han-lab/svdq-int4-flux.1-canny-dev",
+        "disable",
         0
       ]
     }
@@ -741,14 +774,14 @@
   "config": {},
   "extra": {
     "ds": {
-      "scale": 0.895430243255241,
+      "scale": 1.5863092971714992,
       "offset": [
-        838.4305404853558,
-        332.05158795287764
+        170.04223120944968,
+        209.5374167314878
       ]
     },
     "node_versions": {
-      "comfy-core": "0.3.14"
+      "comfy-core": "0.3.24"
     }
   },
   "version": 0.4

comfyui/workflows/svdq-flux.1-depth.json

@@ -21,20 +21,22 @@
       "inputs": [
         {
           "name": "clip",
+          "localized_name": "clip",
+          "label": "clip",
           "type": "CLIP",
-          "link": 63,
-          "label": "clip"
+          "link": 63
         }
       ],
       "outputs": [
         {
           "name": "CONDITIONING",
+          "localized_name": "CONDITIONING",
+          "label": "CONDITIONING",
           "type": "CONDITIONING",
           "links": [
             68
           ],
-          "slot_index": 0,
-          "label": "CONDITIONING"
+          "slot_index": 0
         }
       ],
       "title": "CLIP Text Encode (Negative Prompt)",
@@ -56,7 +58,7 @@
       ],
       "size": [
         315,
-        106
+        122
       ],
       "flags": {},
       "order": 0,
@@ -65,12 +67,13 @@
       "outputs": [
         {
           "name": "CLIP",
+          "localized_name": "CLIP",
+          "label": "CLIP",
           "type": "CLIP",
           "links": [
             62,
             63
-          ],
-          "label": "CLIP"
+          ]
         }
       ],
       "properties": {
@@ -100,21 +103,23 @@
       "inputs": [
         {
           "name": "conditioning",
+          "localized_name": "conditioning",
+          "label": "conditioning",
           "type": "CONDITIONING",
-          "link": 41,
-          "label": "conditioning"
+          "link": 41
         }
       ],
       "outputs": [
         {
           "name": "CONDITIONING",
+          "localized_name": "CONDITIONING",
+          "label": "CONDITIONING",
           "type": "CONDITIONING",
+          "shape": 3,
           "links": [
             67
           ],
-          "slot_index": 0,
-          "shape": 3,
-          "label": "CONDITIONING"
+          "slot_index": 0
         }
       ],
       "properties": {
@@ -141,45 +146,50 @@
       "inputs": [
         {
           "name": "model",
+          "localized_name": "model",
+          "label": "model",
           "type": "MODEL",
-          "link": 78,
-          "label": "model"
+          "link": 78
         },
         {
           "name": "positive",
+          "localized_name": "positive",
+          "label": "positive",
           "type": "CONDITIONING",
-          "link": 64,
-          "label": "positive"
+          "link": 64
         },
         {
           "name": "negative",
+          "localized_name": "negative",
+          "label": "negative",
           "type": "CONDITIONING",
-          "link": 65,
-          "label": "negative"
+          "link": 65
         },
         {
           "name": "latent_image",
+          "localized_name": "latent_image",
+          "label": "latent_image",
           "type": "LATENT",
-          "link": 73,
-          "label": "latent_image"
+          "link": 73
         }
       ],
       "outputs": [
         {
           "name": "LATENT",
+          "localized_name": "LATENT",
+          "label": "LATENT",
           "type": "LATENT",
           "links": [
             7
           ],
-          "slot_index": 0,
-          "label": "LATENT"
+          "slot_index": 0
         }
       ],
       "properties": {
         "Node name for S&R": "KSampler"
       },
       "widgets_values": [
-        704308966490490,
+        69796511068157,
         "randomize",
         20,
         1,
@@ -188,39 +198,6 @@
         1
       ]
     },
-    {
-      "id": 39,
-      "type": "SVDQuantFluxDiTLoader",
-      "pos": [
-        707.80908203125,
-        -172.0343017578125
-      ],
-      "size": [
-        315,
-        82
-      ],
-      "flags": {},
-      "order": 1,
-      "mode": 0,
-      "inputs": [],
-      "outputs": [
-        {
-          "name": "MODEL",
-          "type": "MODEL",
-          "links": [
-            78
-          ],
-          "slot_index": 0
-        }
-      ],
-      "properties": {
-        "Node name for S&R": "SVDQuantFluxDiTLoader"
-      },
-      "widgets_values": [
-        "mit-han-lab/svdq-int4-flux.1-depth-dev",
-        0
-      ]
-    },
     {
       "id": 43,
       "type": "PreviewImage",
@@ -238,9 +215,10 @@
       "inputs": [
         {
           "name": "images",
+          "localized_name": "images",
+          "label": "images",
           "type": "IMAGE",
-          "link": 87,
-          "label": "images"
+          "link": 87
         }
       ],
       "outputs": [],
@@ -266,26 +244,29 @@
       "inputs": [
         {
           "name": "samples",
+          "localized_name": "samples",
+          "label": "samples",
           "type": "LATENT",
-          "link": 7,
-          "label": "samples"
+          "link": 7
         },
         {
           "name": "vae",
+          "localized_name": "vae",
+          "label": "vae",
           "type": "VAE",
-          "link": 60,
-          "label": "vae"
+          "link": 60
         }
       ],
       "outputs": [
         {
           "name": "IMAGE",
+          "localized_name": "IMAGE",
+          "label": "IMAGE",
           "type": "IMAGE",
           "links": [
             85
           ],
-          "slot_index": 0,
-          "label": "IMAGE"
+          "slot_index": 0
         }
       ],
       "properties": {
@@ -310,9 +291,10 @@
       "inputs": [
         {
           "name": "images",
+          "localized_name": "images",
+          "label": "images",
           "type": "IMAGE",
-          "link": 85,
-          "label": "images"
+          "link": 85
         }
       ],
       "outputs": [],
@@ -338,6 +320,7 @@
       "inputs": [
         {
           "name": "image",
+          "localized_name": "image",
           "type": "IMAGE",
           "link": 82
         }
@@ -345,6 +328,7 @@
       "outputs": [
         {
           "name": "IMAGE",
+          "localized_name": "IMAGE",
           "type": "IMAGE",
           "links": [
             86
@@ -379,20 +363,22 @@
       "inputs": [
         {
           "name": "clip",
+          "localized_name": "clip",
+          "label": "clip",
           "type": "CLIP",
-          "link": 62,
-          "label": "clip"
+          "link": 62
         }
       ],
       "outputs": [
         {
           "name": "CONDITIONING",
+          "localized_name": "CONDITIONING",
+          "label": "CONDITIONING",
           "type": "CONDITIONING",
           "links": [
             41
           ],
-          "slot_index": 0,
-          "label": "CONDITIONING"
+          "slot_index": 0
         }
       ],
       "title": "CLIP Text Encode (Positive Prompt)",
@@ -417,19 +403,20 @@
         58
       ],
       "flags": {},
-      "order": 2,
+      "order": 1,
       "mode": 0,
       "inputs": [],
       "outputs": [
         {
           "name": "VAE",
+          "localized_name": "VAE",
+          "label": "VAE",
           "type": "VAE",
           "links": [
             60,
             69
           ],
-          "slot_index": 0,
-          "label": "VAE"
+          "slot_index": 0
         }
       ],
       "properties": {
@@ -456,56 +443,63 @@
       "inputs": [
         {
           "name": "positive",
+          "localized_name": "positive",
+          "label": "positive",
           "type": "CONDITIONING",
-          "link": 67,
-          "label": "positive"
+          "link": 67
         },
         {
           "name": "negative",
+          "localized_name": "negative",
+          "label": "negative",
           "type": "CONDITIONING",
-          "link": 68,
-          "label": "negative"
+          "link": 68
         },
         {
           "name": "vae",
+          "localized_name": "vae",
+          "label": "vae",
           "type": "VAE",
-          "link": 69,
-          "label": "vae"
+          "link": 69
         },
         {
           "name": "pixels",
+          "localized_name": "pixels",
+          "label": "pixels",
           "type": "IMAGE",
-          "link": 88,
-          "label": "pixels"
+          "link": 88
         }
       ],
       "outputs": [
         {
           "name": "positive",
+          "localized_name": "positive",
+          "label": "positive",
           "type": "CONDITIONING",
           "links": [
             64
           ],
-          "slot_index": 0,
-          "label": "positive"
+          "slot_index": 0
         },
         {
           "name": "negative",
+          "localized_name": "negative",
+          "label": "negative",
           "type": "CONDITIONING",
           "links": [
             65
           ],
-          "slot_index": 1,
-          "label": "negative"
+          "slot_index": 1
         },
         {
           "name": "latent",
+          "localized_name": "latent",
+          "label": "latent",
           "type": "LATENT",
           "links": [
             73
           ],
-          "slot_index": 2,
-          "label": "latent"
+          "slot_index": 2
         }
       ],
       "properties": {
@@ -530,6 +524,7 @@
       "inputs": [
         {
           "name": "image",
+          "localized_name": "image",
           "type": "IMAGE",
           "link": 86
         }
@@ -537,6 +532,7 @@
       "outputs": [
         {
           "name": "IMAGE",
+          "localized_name": "IMAGE",
           "type": "IMAGE",
           "links": [
             87,
@@ -564,26 +560,28 @@
         314.0000305175781
       ],
       "flags": {},
-      "order": 3,
+      "order": 2,
       "mode": 0,
       "inputs": [],
       "outputs": [
         {
           "name": "IMAGE",
+          "localized_name": "IMAGE",
+          "label": "IMAGE",
           "type": "IMAGE",
+          "shape": 3,
           "links": [
             82
           ],
-          "slot_index": 0,
-          "shape": 3,
-          "label": "IMAGE"
+          "slot_index": 0
         },
         {
           "name": "MASK",
+          "localized_name": "MASK",
+          "label": "MASK",
           "type": "MASK",
-          "links": null,
           "shape": 3,
-          "label": "MASK"
+          "links": null
         }
       ],
       "properties": {
@@ -593,6 +591,41 @@
         "logo_example.png",
         "image"
       ]
+    },
+    {
+      "id": 39,
+      "type": "SVDQuantFluxDiTLoader",
+      "pos": [
+        707.80908203125,
+        -172.0343017578125
+      ],
+      "size": [
+        315,
+        106
+      ],
+      "flags": {},
+      "order": 3,
+      "mode": 0,
+      "inputs": [],
+      "outputs": [
+        {
+          "name": "MODEL",
+          "localized_name": "MODEL",
+          "type": "MODEL",
+          "links": [
+            78
+          ],
+          "slot_index": 0
+        }
+      ],
+      "properties": {
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comfyui/workflows/svdq-flux.1-dev.json

@@ -19,6 +19,7 @@
       "inputs": [
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+          "localized_name": "conditioning",
           "type": "CONDITIONING",
           "link": 41
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@@ -26,12 +27,13 @@
       "outputs": [
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           "name": "CONDITIONING",
+          "localized_name": "CONDITIONING",
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@@ -82,24 +85,25 @@
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@@ -154,6 +159,7 @@
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@@ -162,11 +168,12 @@
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@@ -257,11 +274,13 @@
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+          "localized_name": "samples",
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+          "localized_name": "vae",
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@@ -269,6 +288,7 @@
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           "links": [
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@@ -298,12 +318,14 @@
       "inputs": [
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@@ -312,12 +334,13 @@
       "outputs": [
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+          "localized_name": "GUIDER",
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@@ -377,21 +400,21 @@
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@@ -515,6 +549,7 @@
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@@ -590,12 +593,13 @@
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@@ -658,30 +663,35 @@
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@@ -690,24 +700,61 @@
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comfyui/workflows/svdq-flux.1-fill.json

@@ -19,11 +19,13 @@
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@@ -31,6 +33,7 @@
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@@ -60,26 +63,31 @@
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@@ -87,6 +95,7 @@
       "outputs": [
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@@ -95,6 +104,7 @@
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@@ -103,6 +113,7 @@
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@@ -134,21 +145,25 @@
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@@ -156,6 +171,7 @@
       "outputs": [
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@@ -167,7 +183,7 @@
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@@ -222,6 +209,7 @@
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@@ -229,12 +217,13 @@
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@@ -270,6 +260,7 @@
       "outputs": [
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@@ -305,6 +296,7 @@
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@@ -405,11 +331,13 @@
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@@ -417,6 +345,7 @@
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@@ -425,6 +354,7 @@
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@@ -460,6 +390,7 @@
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@@ -467,6 +398,7 @@
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@@ -509,6 +441,41 @@
       "color": "#432",
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@@ -529,30 +496,96 @@
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+        440.3467102050781
+      ],
+      "size": [
+        315,
+        58
+      ],
+      "flags": {},
+      "order": 1,
+      "mode": 0,
+      "inputs": [],
+      "outputs": [
+        {
+          "name": "VAE",
+          "localized_name": "VAE",
+          "type": "VAE",
+          "links": [
+            60,
+            82
+          ],
+          "slot_index": 0
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "VAELoader"
+      },
+      "widgets_values": [
+        "ae.safetensors"
+      ]
+    },
+    {
+      "id": 9,
+      "type": "SaveImage",
+      "pos": [
+        1862.43359375,
+        96.36107635498047
+      ],
+      "size": [
+        828.9535522460938,
+        893.8475341796875
+      ],
+      "flags": {},
+      "order": 12,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "images",
+          "localized_name": "images",
+          "type": "IMAGE",
+          "link": 95
+        }
+      ],
+      "outputs": [],
+      "properties": {
+        "Node name for S&R": "SaveImage"
+      },
+      "widgets_values": [
+        "ComfyUI"
+      ]
     }
   ],
   "links": [
@@ -697,14 +730,14 @@
   "config": {},
   "extra": {
     "ds": {
-      "scale": 0.8390545288824038,
+      "scale": 1.7985878990921451,
       "offset": [
-        815.2093059315082,
-        185.9955477896796
+        -287.8887097712823,
+        208.1745856210748
       ]
     },
     "node_versions": {
-      "comfy-core": "0.3.14",
+      "comfy-core": "0.3.24",
       "comfyui-inpainteasy": "1.0.2"
     }
   },

comfyui/workflows/svdq-flux.1-schnell.json

@@ -14,16 +14,18 @@
         46
       ],
       "flags": {},
-      "order": 12,
+      "order": 10,
       "mode": 0,
       "inputs": [
         {
           "name": "samples",
+          "localized_name": "samples",
           "type": "LATENT",
           "link": 24
         },
         {
           "name": "vae",
+          "localized_name": "vae",
           "type": "VAE",
           "link": 12
         }
@@ -31,6 +33,7 @@
       "outputs": [
         {
           "name": "IMAGE",
+          "localized_name": "IMAGE",
           "type": "IMAGE",
           "links": [
             9
@@ -55,12 +58,13 @@
         106
       ],
       "flags": {},
-      "order": 2,
+      "order": 0,
       "mode": 0,
       "inputs": [],
       "outputs": [
         {
           "name": "LATENT",
+          "localized_name": "LATENT",
           "type": "LATENT",
           "links": [
             23
@@ -91,17 +95,18 @@
         58
       ],
       "flags": {},
-      "order": 3,
+      "order": 1,
       "mode": 0,
       "inputs": [],
       "outputs": [
         {
           "name": "SAMPLER",
+          "localized_name": "SAMPLER",
           "type": "SAMPLER",
+          "shape": 3,
           "links": [
             19
-          ],
-          "shape": 3
+          ]
         }
       ],
       "properties": {
@@ -123,11 +128,12 @@
         106
       ],
       "flags": {},
-      "order": 8,
+      "order": 7,
       "mode": 0,
       "inputs": [
         {
           "name": "model",
+          "localized_name": "model",
           "type": "MODEL",
           "link": 41,
           "slot_index": 0
@@ -136,11 +142,12 @@
       "outputs": [
         {
           "name": "SIGMAS",
+          "localized_name": "SIGMAS",
           "type": "SIGMAS",
+          "shape": 3,
           "links": [
             20
-          ],
-          "shape": 3
+          ]
         }
       ],
       "properties": {
@@ -152,31 +159,6 @@
         1
       ]
     },
-    {
-      "id": 27,
-      "type": "Note",
-      "pos": [
-        480,
-        960
-      ],
-      "size": [
-        311.3529052734375,
-        131.16229248046875
-      ],
-      "flags": {},
-      "order": 4,
-      "mode": 0,
-      "inputs": [],
-      "outputs": [],
-      "properties": {
-        "text": ""
-      },
-      "widgets_values": [
-        "The schnell model is a distilled model that can generate a good image with only 4 steps."
-      ],
-      "color": "#432",
-      "bgcolor": "#653"
-    },
     {
       "id": 22,
       "type": "BasicGuider",
@@ -189,17 +171,19 @@
         46
       ],
       "flags": {},
-      "order": 10,
+      "order": 8,
       "mode": 0,
       "inputs": [
         {
           "name": "model",
+          "localized_name": "model",
           "type": "MODEL",
           "link": 42,
           "slot_index": 0
         },
         {
           "name": "conditioning",
+          "localized_name": "conditioning",
           "type": "CONDITIONING",
           "link": 40,
           "slot_index": 1
@@ -208,12 +192,13 @@
       "outputs": [
         {
           "name": "GUIDER",
+          "localized_name": "GUIDER",
           "type": "GUIDER",
+          "shape": 3,
           "links": [
             30
           ],
-          "slot_index": 0,
-          "shape": 3
+          "slot_index": 0
         }
       ],
       "properties": {
@@ -233,11 +218,12 @@
         164.31304931640625
       ],
       "flags": {},
-      "order": 9,
+      "order": 6,
       "mode": 0,
       "inputs": [
         {
           "name": "clip",
+          "localized_name": "clip",
           "type": "CLIP",
           "link": 43
         }
@@ -245,6 +231,7 @@
       "outputs": [
         {
           "name": "CONDITIONING",
+          "localized_name": "CONDITIONING",
           "type": "CONDITIONING",
           "links": [
             40
@@ -273,35 +260,40 @@
         106
       ],
       "flags": {},
-      "order": 11,
+      "order": 9,
       "mode": 0,
       "inputs": [
         {
           "name": "noise",
+          "localized_name": "noise",
           "type": "NOISE",
           "link": 37,
           "slot_index": 0
         },
         {
           "name": "guider",
+          "localized_name": "guider",
           "type": "GUIDER",
           "link": 30,
           "slot_index": 1
         },
         {
           "name": "sampler",
+          "localized_name": "sampler",
           "type": "SAMPLER",
           "link": 19,
           "slot_index": 2
         },
         {
           "name": "sigmas",
+          "localized_name": "sigmas",
           "type": "SIGMAS",
           "link": 20,
           "slot_index": 3
         },
         {
           "name": "latent_image",
+          "localized_name": "latent_image",
           "type": "LATENT",
           "link": 23,
           "slot_index": 4
@@ -310,18 +302,20 @@
       "outputs": [
         {
           "name": "output",
+          "localized_name": "output",
           "type": "LATENT",
+          "shape": 3,
           "links": [
             24
           ],
-          "slot_index": 0,
-          "shape": 3
+          "slot_index": 0
         },
         {
           "name": "denoised_output",
+          "localized_name": "denoised_output",
           "type": "LATENT",
-          "links": null,
-          "shape": 3
+          "shape": 3,
+          "links": null
         }
       ],
       "properties": {
@@ -341,11 +335,12 @@
         1060.3828125
       ],
       "flags": {},
-      "order": 13,
+      "order": 11,
       "mode": 0,
       "inputs": [
         {
           "name": "images",
+          "localized_name": "images",
           "type": "IMAGE",
           "link": 9
         }
@@ -368,17 +363,18 @@
         82
       ],
       "flags": {},
-      "order": 6,
+      "order": 2,
       "mode": 0,
       "inputs": [],
       "outputs": [
         {
           "name": "NOISE",
+          "localized_name": "NOISE",
           "type": "NOISE",
+          "shape": 3,
           "links": [
             37
-          ],
-          "shape": 3
+          ]
         }
       ],
       "properties": {
@@ -400,10 +396,10 @@
       ],
       "size": [
         352.79998779296875,
-        130
+        178
       ],
       "flags": {},
-      "order": 7,
+      "order": 3,
       "mode": 0,
       "inputs": [
         {
@@ -415,6 +411,7 @@
       "outputs": [
         {
           "name": "CLIP",
+          "localized_name": "CLIP",
           "type": "CLIP",
           "links": [
             43
@@ -429,77 +426,57 @@
         "flux",
         "t5xxl_fp16.safetensors",
         "clip_l.safetensors",
-        512
+        512,
+        "BF16",
+        "mit-han-lab/svdq-flux.1-t5"
       ]
     },
     {
-      "id": 10,
-      "type": "VAELoader",
+      "id": 28,
+      "type": "SVDQuantFluxDiTLoader",
       "pos": [
-        -31.617252349853516,
-        377.54791259765625
+        -10.846628189086914,
+        890.9998779296875
       ],
       "size": [
         315,
-        58
+        106
       ],
       "flags": {},
-      "order": 0,
+      "order": 4,
       "mode": 0,
       "inputs": [],
       "outputs": [
         {
-          "name": "VAE",
-          "type": "VAE",
+          "name": "MODEL",
+          "localized_name": "MODEL",
+          "type": "MODEL",
           "links": [
-            12
+            41,
+            42
           ],
-          "slot_index": 0,
-          "shape": 3
+          "slot_index": 0
         }
       ],
       "properties": {
-        "Node name for S&R": "VAELoader"
+        "Node name for S&R": "SVDQuantFluxDiTLoader"
       },
       "widgets_values": [
-        "ae.safetensors"
+        "mit-han-lab/svdq-int4-flux.1-schnell",
+        "disable",
+        0
       ]
     },
     {
-      "id": 26,
-      "type": "Note",
-      "pos": [
-        -28.286691665649414,
-        511.4660339355469
-      ],
-      "size": [
-        336,
-        288
-      ],
-      "flags": {},
-      "order": 1,
-      "mode": 0,
-      "inputs": [],
-      "outputs": [],
-      "properties": {
-        "text": ""
-      },
-      "widgets_values": [
-        "If you get an error in any of the nodes above make sure the files are in the correct directories.\n\nSee the top of the examples page for the links : https://comfyanonymous.github.io/ComfyUI_examples/flux/\n\nflux1-schnell.safetensors goes in: ComfyUI/models/unet/\n\nt5xxl_fp16.safetensors and clip_l.safetensors go in: ComfyUI/models/clip/\n\nae.safetensors goes in: ComfyUI/models/vae/\n\n\nTip: You can set the weight_dtype above to one of the fp8 types if you have memory issues."
-      ],
-      "color": "#432",
-      "bgcolor": "#653"
-    },
-    {
-      "id": 28,
-      "type": "SVDQuantFluxDiTLoader",
+      "id": 10,
+      "type": "VAELoader",
       "pos": [
-        -10.846628189086914,
-        890.9998779296875
+        874.65625,
+        480.88372802734375
       ],
       "size": [
         315,
-        82
+        58
       ],
       "flags": {},
       "order": 5,
@@ -507,21 +484,21 @@
       "inputs": [],
       "outputs": [
         {
-          "name": "MODEL",
-          "type": "MODEL",
+          "name": "VAE",
+          "localized_name": "VAE",
+          "type": "VAE",
+          "shape": 3,
           "links": [
-            41,
-            42
+            12
           ],
           "slot_index": 0
         }
       ],
       "properties": {
-        "Node name for S&R": "SVDQuantFluxDiTLoader"
+        "Node name for S&R": "VAELoader"
       },
       "widgets_values": [
-        "mit-han-lab/svdq-int4-flux.1-schnell",
-        0
+        "ae.safetensors"
       ]
     }
   ],
@@ -627,11 +604,14 @@
   "config": {},
   "extra": {
     "ds": {
-      "scale": 0.6727499949325652,
+      "scale": 1.1167815779424761,
       "offset": [
-        405.6825017392191,
-        29.738440474209906
+        874.5548427683093,
+        429.12540214017235
       ]
+    },
+    "node_versions": {
+      "comfy-core": "0.3.24"
     }
   },
   "version": 0.4

examples/fp4-flux.1-dev.py

 import torch
 from diffusers import FluxPipeline
 
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku import NunchakuFluxTransformer2dModel
 
 transformer = NunchakuFluxTransformer2dModel.from_pretrained("mit-han-lab/svdq-fp4-flux.1-dev", precision="fp4")
 pipeline = FluxPipeline.from_pretrained(

examples/fp4-flux.1-schnell.py

 import torch
 from diffusers import FluxPipeline
 
-from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from nunchaku import NunchakuFluxTransformer2dModel
 
 transformer = NunchakuFluxTransformer2dModel.from_pretrained("mit-han-lab/svdq-fp4-flux.1-schnell", precision="fp4")
 pipeline = FluxPipeline.from_pretrained(