---
id: pr-vllm-16078
repo: vllm-project/vllm
pr: 16078
title: Add FlexAttention to V1
author: drisspg
date: '2025-06-07'
url: https://github.com/vllm-project/vllm/pull/16078
source_category: upstream-code
architectures:
- sm100
tags:
- attention
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: cf02f9b283a6a85f872e87b57dbeff7b767715e5
inclusion_reason: kernel file changes
changed_paths:
- tests/kernels/test_flex_attention.py
- vllm/engine/arg_utils.py
- vllm/platforms/cuda.py
- vllm/platforms/interface.py
- vllm/v1/attention/backends/flex_attention.py
head_ref_oid: a51cc11cc0d6ceb43ff036f2aa6d47b3d742f0c7
artifact_dir: evidence/pull-bundles/vllm/gh-16078
---
# Add FlexAttention to V1

- Repository: `vllm-project/vllm`
- PR: [16078](https://github.com/vllm-project/vllm/pull/16078)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `tests/kernels/test_flex_attention.py`
- `vllm/engine/arg_utils.py`
- `vllm/platforms/cuda.py`
- `vllm/platforms/interface.py`
- `vllm/v1/attention/backends/flex_attention.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-16078`
