---
id: pr-flashinfer-1611
repo: flashinfer-ai/flashinfer
pr: 1611
title: 'bugfix: fix fp4 quantization with 8x4 scale factor layout'
author: cyx-6
date: '2025-08-30'
url: https://github.com/flashinfer-ai/flashinfer/pull/1611
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- quantization
techniques: []
hardware_features:
- fp4
kernel_types:
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: b297fc2f0ea615e570c27faf921b47b797f20bbc
inclusion_reason: kernel file changes
changed_paths:
- csrc/nv_internal/tensorrt_llm/kernels/quantization.cuh
head_ref_oid: 4b72dc50b57cebe2f29f799f138964e7bbcfb85d
artifact_dir: evidence/pull-bundles/flashinfer/gh-1611
---
# bugfix: fix fp4 quantization with 8x4 scale factor layout

- Repository: `flashinfer-ai/flashinfer`
- PR: [1611](https://github.com/flashinfer-ai/flashinfer/pull/1611)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/nv_internal/tensorrt_llm/kernels/quantization.cuh`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1611`
