---
id: pr-vllm-33417
repo: vllm-project/vllm
pr: 33417
title: 'fix: Add SM120 (RTX Blackwell) support for FlashInfer CUTLASS NVFP4 MoE kernels'
author: renehonig
date: '2026-01-31'
url: https://github.com/vllm-project/vllm/pull/33417
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- fp4
- kernel-fusion
- moe
- nvfp4
- quantization
techniques:
- kernel-fusion
hardware_features:
- fp4
- nvfp4
kernel_types:
- moe
- quantization
languages:
- cute-dsl
captured_at: '2026-04-27'
status: merged
merge_sha: 079781177ae4c9fba429bf093cae73cf4cfae7a8
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/cutlass_moe.py
- vllm/model_executor/layers/fused_moe/flashinfer_cutedsl_moe.py
- vllm/model_executor/layers/fused_moe/flashinfer_cutlass_moe.py
- vllm/model_executor/layers/fused_moe/flashinfer_trtllm_moe.py
- vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py
- vllm/model_executor/layers/quantization/utils/nvfp4_moe_support.py
head_ref_oid: 9b71b86da1b73caf41766210e6432894c3cdaa10
artifact_dir: evidence/pull-bundles/vllm/gh-33417
---
# fix: Add SM120 (RTX Blackwell) support for FlashInfer CUTLASS NVFP4 MoE kernels

- Repository: `vllm-project/vllm`
- PR: [33417](https://github.com/vllm-project/vllm/pull/33417)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/cutlass_moe.py`
- `vllm/model_executor/layers/fused_moe/flashinfer_cutedsl_moe.py`
- `vllm/model_executor/layers/fused_moe/flashinfer_cutlass_moe.py`
- `vllm/model_executor/layers/fused_moe/flashinfer_trtllm_moe.py`
- `vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py`
- `vllm/model_executor/layers/quantization/utils/nvfp4_moe_support.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-33417`
