---
id: pr-vllm-36725
repo: vllm-project/vllm
pr: 36725
title: '[Bug][MoE] Fix TRTLLM NVFP4 Routing Kernel Precision'
author: robertgshaw2-redhat
date: '2026-03-23'
url: https://github.com/vllm-project/vllm/pull/36725
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- kernel-fusion
- moe
- nvfp4
techniques:
- kernel-fusion
hardware_features:
- fp4
- nvfp4
kernel_types:
- moe
languages:
- python
captured_at: '2026-04-17'
status: merged
merge_sha: 5bf3c42d4c7e99f4898b18a715be515f44a22f44
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/experts/trtllm_nvfp4_moe.py
head_ref_oid: 6cf67e97a4d1f1eb3425c497ec6701cf01d91b8b
artifact_dir: evidence/pull-bundles/vllm/gh-36725
---
# [Bug][MoE] Fix TRTLLM NVFP4 Routing Kernel Precision

- Repository: `vllm-project/vllm`
- PR: [36725](https://github.com/vllm-project/vllm/pull/36725)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/experts/trtllm_nvfp4_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-36725`
