---
id: pr-vllm-19500
repo: vllm-project/vllm
pr: 19500
title: '[Hardware][NVIDIA][kernel] Fp4 MOE quant kernel optimization'
author: jiahanc
date: '2025-06-14'
url: https://github.com/vllm-project/vllm/pull/19500
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- moe
- nvfp4
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- moe
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 294fc1e2c90a7fc71575c9c9bb1b12cd2b92b495
inclusion_reason: kernel file changes
changed_paths:
- csrc/quantization/fp4/nvfp4_experts_quant.cu
head_ref_oid: b7f3c52a3bd2289705c015814a32562187f23f09
artifact_dir: evidence/pull-bundles/vllm/gh-19500
---
# [Hardware][NVIDIA][kernel] Fp4 MOE quant kernel optimization

- Repository: `vllm-project/vllm`
- PR: [19500](https://github.com/vllm-project/vllm/pull/19500)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/quantization/fp4/nvfp4_experts_quant.cu`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-19500`
