---
id: pr-flashinfer-1405
repo: flashinfer-ai/flashinfer
pr: 1405
title: 'feature: enable cublas for fp4 gemm when cudnn == 9.11.1 or >= 9.13'
author: ttyio
date: '2025-08-07'
url: https://github.com/flashinfer-ai/flashinfer/pull/1405
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- gemm
techniques: []
hardware_features:
- fp4
kernel_types:
- gemm
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 7ce370237ab999c56d883b091d2caf6dd28ab7db
inclusion_reason: kernel file changes
changed_paths:
- flashinfer/gemm.py
head_ref_oid: ec8624acada05e41cc652de29efa40e04e80f126
artifact_dir: evidence/pull-bundles/flashinfer/gh-1405
---
# feature: enable cublas for fp4 gemm when cudnn == 9.11.1 or >= 9.13

- Repository: `flashinfer-ai/flashinfer`
- PR: [1405](https://github.com/flashinfer-ai/flashinfer/pull/1405)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `flashinfer/gemm.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1405`
