---
id: pr-sglang-18085
repo: sgl-project/sglang
pr: 18085
title: Fix nvfp4 weight update
author: zianglih
date: '2026-02-27'
url: https://github.com/sgl-project/sglang/pull/18085
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: 9469ad089b670a3980f5bbebbf35d0f598e8f44d
inclusion_reason: kernel file changes
changed_paths:
- python/sglang/srt/layers/moe/moe_runner/flashinfer_trtllm.py
- python/sglang/srt/layers/quantization/modelopt_quant.py
- python/sglang/srt/layers/utils/common.py
head_ref_oid: 7244e4c6aab28ff247aee9aa1c566b183d2f0687
artifact_dir: evidence/pull-bundles/sglang/gh-18085
---
# Fix nvfp4 weight update

- Repository: `sgl-project/sglang`
- PR: [18085](https://github.com/sgl-project/sglang/pull/18085)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/sglang/srt/layers/moe/moe_runner/flashinfer_trtllm.py`
- `python/sglang/srt/layers/quantization/modelopt_quant.py`
- `python/sglang/srt/layers/utils/common.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-18085`
