---
id: pr-vllm-23659
repo: vllm-project/vllm
pr: 23659
title: '[Bugfix] Fix Marlin NVFP4 for modelopt'
author: mgoin
date: '2025-08-27'
url: https://github.com/vllm-project/vllm/pull/23659
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- nvfp4
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: f9ca2b40a0357d98e3fb8bd951745dfaceab459e
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/quantization/modelopt.py
head_ref_oid: 13813b31df5031717540ff9be1e2f9f253d94ce3
artifact_dir: evidence/pull-bundles/vllm/gh-23659
---
# [Bugfix] Fix Marlin NVFP4 for modelopt

- Repository: `vllm-project/vllm`
- PR: [23659](https://github.com/vllm-project/vllm/pull/23659)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/quantization/modelopt.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-23659`
