---
id: pr-flashinfer-1498
repo: flashinfer-ai/flashinfer
pr: 1498
title: 'feat: scaling at fp4 gemm epilogue'
author: yyihuang
date: '2025-08-17'
url: https://github.com/flashinfer-ai/flashinfer/pull/1498
source_category: upstream-code
architectures:
- sm100
tags:
- epilogue-fusion
- fp4
- gemm
techniques:
- epilogue-fusion
hardware_features:
- fp4
kernel_types:
- gemm
languages:
- cute-dsl
captured_at: '2026-04-27'
status: merged
merge_sha: 51278b787e363baabd415eda459e0ae62bb2d4aa
inclusion_reason: kernel file changes
changed_paths:
- flashinfer/cute_dsl/blockscaled_gemm.py
- tests/test_cute_dsl_blockscaled_gemm.py
head_ref_oid: 2e278c1edb454725b13c7b1201a6e7b94dfe9fc2
artifact_dir: evidence/pull-bundles/flashinfer/gh-1498
---
# feat: scaling at fp4 gemm epilogue

- Repository: `flashinfer-ai/flashinfer`
- PR: [1498](https://github.com/flashinfer-ai/flashinfer/pull/1498)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `flashinfer/cute_dsl/blockscaled_gemm.py`
- `tests/test_cute_dsl_blockscaled_gemm.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1498`
