---
id: pr-sglang-21339
repo: sgl-project/sglang
pr: 21339
title: Add dedicated FlashInferCuteDslMoE layer for standard-path FP4 MoE
author: leejnau
date: '2026-04-10'
url: https://github.com/sgl-project/sglang/pull/21339
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- moe
- quantization
techniques: []
hardware_features:
- fp4
kernel_types:
- moe
- quantization
languages:
- cute-dsl
- python
captured_at: '2026-04-17'
status: merged
merge_sha: c554dc5c64b661f2c53225b03a76359eaddc39e4
inclusion_reason: kernel file changes
changed_paths:
- python/sglang/srt/layers/moe/moe_runner/flashinfer_cutedsl.py
- python/sglang/srt/layers/moe/moe_runner/runner.py
- python/sglang/srt/layers/moe/token_dispatcher/standard.py
- python/sglang/srt/layers/quantization/modelopt_quant.py
- python/sglang/srt/model_executor/model_runner.py
- python/sglang/srt/server_args.py
- test/registered/backends/test_deepseek_v3_fp4_cutedsl_moe.py
- test/registered/moe/test_cutedsl_moe.py
artifact_dir: evidence/pull-bundles/sglang/gh-21339
head_ref_oid: 8a3ccee3e53364528189b20abe8666c64e547984
---
# Add dedicated FlashInferCuteDslMoE layer for standard-path FP4 MoE

- Repository: `sgl-project/sglang`
- PR: [21339](https://github.com/sgl-project/sglang/pull/21339)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/sglang/srt/layers/moe/moe_runner/flashinfer_cutedsl.py`
- `python/sglang/srt/layers/moe/moe_runner/runner.py`
- `python/sglang/srt/layers/moe/token_dispatcher/standard.py`
- `python/sglang/srt/layers/quantization/modelopt_quant.py`
- `python/sglang/srt/model_executor/model_runner.py`
- `python/sglang/srt/server_args.py`
- `test/registered/backends/test_deepseek_v3_fp4_cutedsl_moe.py`
- `test/registered/moe/test_cutedsl_moe.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-21339`
