---
id: pr-vllm-32887
repo: vllm-project/vllm
pr: 32887
title: '[Spec Decode] Unified Parallel Drafting'
author: benchislett
date: '2026-02-05'
url: https://github.com/vllm-project/vllm/pull/32887
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- decode
techniques: []
hardware_features: []
kernel_types:
- attention
- decode
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: af3162d3aaa559a738396baf5b5134c1ab0742f5
inclusion_reason: kernel file changes
changed_paths:
- examples/offline_inference/spec_decode.py
- tests/v1/e2e/test_spec_decode.py
- tests/v1/spec_decode/test_eagle.py
- tests/v1/spec_decode/test_mtp.py
- vllm/config/speculative.py
- vllm/config/vllm.py
- vllm/model_executor/models/llama_eagle3.py
- vllm/v1/attention/backend.py
- vllm/v1/attention/backends/flashinfer.py
- vllm/v1/attention/backends/utils.py
- vllm/v1/spec_decode/draft_model.py
- vllm/v1/spec_decode/eagle.py
- vllm/v1/spec_decode/utils.py
- vllm/v1/worker/gpu_model_runner.py
head_ref_oid: cb564b945b0e991fabd2e532934d19a4deda5974
artifact_dir: evidence/pull-bundles/vllm/gh-32887
---
# [Spec Decode] Unified Parallel Drafting

- Repository: `vllm-project/vllm`
- PR: [32887](https://github.com/vllm-project/vllm/pull/32887)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `examples/offline_inference/spec_decode.py`
- `tests/v1/e2e/test_spec_decode.py`
- `tests/v1/spec_decode/test_eagle.py`
- `tests/v1/spec_decode/test_mtp.py`
- `vllm/config/speculative.py`
- `vllm/config/vllm.py`
- `vllm/model_executor/models/llama_eagle3.py`
- `vllm/v1/attention/backend.py`
- `vllm/v1/attention/backends/flashinfer.py`
- `vllm/v1/attention/backends/utils.py`
- `vllm/v1/spec_decode/draft_model.py`
- `vllm/v1/spec_decode/eagle.py`
- `vllm/v1/spec_decode/utils.py`
- `vllm/v1/worker/gpu_model_runner.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-32887`
