---
id: pr-vllm-25990
repo: vllm-project/vllm
pr: 25990
title: '[MoE] Nvfp4 Masked Gemm: Add flashinfer grouped_gemm_nt_masked'
author: wenscarl
date: '2025-11-19'
url: https://github.com/vllm-project/vllm/pull/25990
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- gemm
- grouped-gemm
- kernel-fusion
- moe
- nvfp4
- pipeline-stages
- quantization
techniques:
- kernel-fusion
- pipeline-stages
hardware_features:
- fp4
- nvfp4
kernel_types:
- gemm
- grouped-gemm
- moe
- quantization
languages:
- cute-dsl
captured_at: '2026-04-27'
status: merged
merge_sha: 613abb50d5715ba693ee9d5b727e8385b98e7185
inclusion_reason: kernel file changes
changed_paths:
- .buildkite/test-pipeline.yaml
- tests/kernels/moe/test_cutedsl_moe.py
- vllm/envs.py
- vllm/model_executor/layers/fused_moe/deepep_ll_prepare_finalize.py
- vllm/model_executor/layers/fused_moe/flashinfer_cutedsl_moe.py
- vllm/model_executor/layers/quantization/modelopt.py
- vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py
- vllm/model_executor/layers/quantization/utils/flashinfer_utils.py
- vllm/model_executor/layers/quantization/utils/nvfp4_moe_support.py
- vllm/utils/flashinfer.py
head_ref_oid: 87c4e87cae27f34e5de87635e260b197a31f6103
artifact_dir: evidence/pull-bundles/vllm/gh-25990
---
# [MoE] Nvfp4 Masked Gemm: Add flashinfer grouped_gemm_nt_masked

- Repository: `vllm-project/vllm`
- PR: [25990](https://github.com/vllm-project/vllm/pull/25990)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `.buildkite/test-pipeline.yaml`
- `tests/kernels/moe/test_cutedsl_moe.py`
- `vllm/envs.py`
- `vllm/model_executor/layers/fused_moe/deepep_ll_prepare_finalize.py`
- `vllm/model_executor/layers/fused_moe/flashinfer_cutedsl_moe.py`
- `vllm/model_executor/layers/quantization/modelopt.py`
- `vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py`
- `vllm/model_executor/layers/quantization/utils/flashinfer_utils.py`
- `vllm/model_executor/layers/quantization/utils/nvfp4_moe_support.py`
- `vllm/utils/flashinfer.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-25990`
