---
id: pr-vllm-29742
repo: vllm-project/vllm
pr: 29742
title: '[Bugfix] Fix mismatched nvfp4 gemm output shape'
author: Isotr0py
date: '2025-11-30'
url: https://github.com/vllm-project/vllm/pull/29742
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- gemm
- nvfp4
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- gemm
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 47539cfd3e5006159e427ee5bc32823f6cef7ec3
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/quantization/compressed_tensors/schemes/compressed_tensors_w4a4_nvfp4.py
head_ref_oid: 9516dcc2c74dd248d7c3418ae052c7d7949289bb
artifact_dir: evidence/pull-bundles/vllm/gh-29742
---
# [Bugfix] Fix mismatched nvfp4 gemm output shape

- Repository: `vllm-project/vllm`
- PR: [29742](https://github.com/vllm-project/vllm/pull/29742)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/quantization/compressed_tensors/schemes/compressed_tensors_w4a4_nvfp4.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-29742`
