---
id: pr-vllm-34298
repo: vllm-project/vllm
pr: 34298
title: '[ModelBash][DSR1 NVFp4] Avoid Bf16 Bias Cast'
author: robertgshaw2-redhat
date: '2026-02-11'
url: https://github.com/vllm-project/vllm/pull/34298
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- moe
- nvfp4
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- moe
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 9b17c57460bb5f6595f27b43e43caba144a8ec3c
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py
head_ref_oid: ae14cb0bb8fd2ffe26d34c6f381c5065ccc27ee6
artifact_dir: evidence/pull-bundles/vllm/gh-34298
---
# [ModelBash][DSR1 NVFp4] Avoid Bf16 Bias Cast

- Repository: `vllm-project/vllm`
- PR: [34298](https://github.com/vllm-project/vllm/pull/34298)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

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

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-34298`
