---
id: pr-flashinfer-2443
repo: flashinfer-ai/flashinfer
pr: 2443
title: Add cute-dsl backends to mxfp[8,4]_quantization for future refactor
author: bkryu
date: '2026-03-18'
url: https://github.com/flashinfer-ai/flashinfer/pull/2443
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- fp8
- quantization
techniques: []
hardware_features:
- fp4
- fp8
kernel_types:
- quantization
languages:
- cute-dsl
captured_at: '2026-04-27'
status: merged
merge_sha: 8e53ccefbf121bd0d543451887a31c9219a8fcb6
inclusion_reason: kernel file changes
changed_paths:
- benchmarks/bench_mxfp4_quantize_backend_comparison.py
- benchmarks/bench_mxfp8_quantize_backend_comparison.py
- benchmarks/routines/flashinfer_benchmark_utils.py
- benchmarks/routines/quantization.py
- flashinfer/__init__.py
- flashinfer/activation.py
- flashinfer/fp4_quantization.py
- flashinfer/fp8_quantization.py
- flashinfer/quantization/__init__.py
- flashinfer/quantization/fp4_quantization.py
- flashinfer/quantization/fp8_quantization.py
- flashinfer/quantization/kernels/__init__.py
- flashinfer/quantization/kernels/mxfp4_quantize.py
- flashinfer/quantization/kernels/mxfp8_quantize.py
- flashinfer/quantization/packbits.py
- flashinfer/quantization/quantization_cute_dsl_utils.py
- tests/utils/test_fp4_quantize.py
- tests/utils/test_fp8_quantize.py
head_ref_oid: 7495324ac066447f6d999fe8635ad5aa685a98d9
artifact_dir: evidence/pull-bundles/flashinfer/gh-2443
---
# Add cute-dsl backends to mxfp[8,4]_quantization for future refactor

- Repository: `flashinfer-ai/flashinfer`
- PR: [2443](https://github.com/flashinfer-ai/flashinfer/pull/2443)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `benchmarks/bench_mxfp4_quantize_backend_comparison.py`
- `benchmarks/bench_mxfp8_quantize_backend_comparison.py`
- `benchmarks/routines/flashinfer_benchmark_utils.py`
- `benchmarks/routines/quantization.py`
- `flashinfer/__init__.py`
- `flashinfer/activation.py`
- `flashinfer/fp4_quantization.py`
- `flashinfer/fp8_quantization.py`
- `flashinfer/quantization/__init__.py`
- `flashinfer/quantization/fp4_quantization.py`
- `flashinfer/quantization/fp8_quantization.py`
- `flashinfer/quantization/kernels/__init__.py`
- `flashinfer/quantization/kernels/mxfp4_quantize.py`
- `flashinfer/quantization/kernels/mxfp8_quantize.py`
- `flashinfer/quantization/packbits.py`
- `flashinfer/quantization/quantization_cute_dsl_utils.py`
- `tests/utils/test_fp4_quantize.py`
- `tests/utils/test_fp8_quantize.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2443`
