---
id: pr-vllm-33738
repo: vllm-project/vllm
pr: 33738
title: '[WideEP] Fix nvfp4 DeepEP High Throughput All2All backend'
author: tlrmchlsmth
date: '2026-02-11'
url: https://github.com/vllm-project/vllm/pull/33738
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 066c6da6a04906a89739fb7e6874ceb6cf714364
inclusion_reason: defer
changed_paths:
- vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py
artifact_dir: evidence/pull-bundles/vllm/gh-33738
head_ref_oid: 514428cb8a961a99be11c475344558bb94613ad0
---
# [WideEP] Fix nvfp4 DeepEP High Throughput All2All backend

- Repository: `vllm-project/vllm`
- PR: [33738](https://github.com/vllm-project/vllm/pull/33738)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-33738`
