---
id: pr-vllm-37205
repo: vllm-project/vllm
pr: 37205
title: '[Kernel] Add gpt-oss Router GEMM kernel'
author: xyang16
date: '2026-03-18'
url: https://github.com/vllm-project/vllm/pull/37205
source_category: upstream-code
architectures:
- sm100
tags:
- gemm
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- gemm
- moe
languages:
- cuda-cpp
captured_at: '2026-04-17'
status: merged
merge_sha: b1169d7be8add20ab1db4bc93c2b5c6336ef9754
inclusion_reason: kernel file changes
changed_paths:
- CMakeLists.txt
- benchmarks/kernels/benchmark_router_gemm.py
- csrc/moe/gpt_oss_router_gemm.cu
- csrc/moe/gpt_oss_router_gemm.cuh
- csrc/moe/moe_ops.h
- csrc/moe/torch_bindings.cpp
- tests/kernels/moe/test_router_gemm.py
- vllm/_custom_ops.py
- vllm/lora/layers/__init__.py
- vllm/lora/layers/gate_linear.py
- vllm/lora/utils.py
- vllm/model_executor/layers/fused_moe/router/gate_linear.py
- vllm/model_executor/models/gpt_oss.py
head_ref_oid: 3a9c8a3383cce3a34a998a335733714f1ed7e01e
artifact_dir: evidence/pull-bundles/vllm/gh-37205
---
# [Kernel] Add gpt-oss Router GEMM kernel

- Repository: `vllm-project/vllm`
- PR: [37205](https://github.com/vllm-project/vllm/pull/37205)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `CMakeLists.txt`
- `benchmarks/kernels/benchmark_router_gemm.py`
- `csrc/moe/gpt_oss_router_gemm.cu`
- `csrc/moe/gpt_oss_router_gemm.cuh`
- `csrc/moe/moe_ops.h`
- `csrc/moe/torch_bindings.cpp`
- `tests/kernels/moe/test_router_gemm.py`
- `vllm/_custom_ops.py`
- `vllm/lora/layers/__init__.py`
- `vllm/lora/layers/gate_linear.py`
- `vllm/lora/utils.py`
- `vllm/model_executor/layers/fused_moe/router/gate_linear.py`
- `vllm/model_executor/models/gpt_oss.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-37205`
