---
id: pr-flashinfer-2679
repo: flashinfer-ai/flashinfer
pr: 2679
title: 'feat(gdn): add BF16 state kernel with MTP support beyond T>4 with intermediate caching.'
author: ameynaik-hub
date: '2026-04-02'
url: https://github.com/flashinfer-ai/flashinfer/pull/2679
source_category: upstream-code
architectures:
- sm100
tags:
- decode
techniques: []
hardware_features: []
kernel_types:
- decode
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 7514bf2e9bc75bfa5d77257d12e0bdd4925c254c
inclusion_reason: kernel file changes
changed_paths:
- benchmarks/bench_gdn_decode.py
- flashinfer/gdn_decode.py
- flashinfer/gdn_kernels/__init__.py
- flashinfer/gdn_kernels/gdn_decode_bf16_state.py
- tests/gdn/test_decode_delta_rule.py
head_ref_oid: 2da107c626580a37ba70690bdbce93431469b965
artifact_dir: evidence/pull-bundles/flashinfer/gh-2679
---
# feat(gdn): add BF16 state kernel with MTP support beyond T>4 with intermediate caching.

- Repository: `flashinfer-ai/flashinfer`
- PR: [2679](https://github.com/flashinfer-ai/flashinfer/pull/2679)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `benchmarks/bench_gdn_decode.py`
- `flashinfer/gdn_decode.py`
- `flashinfer/gdn_kernels/__init__.py`
- `flashinfer/gdn_kernels/gdn_decode_bf16_state.py`
- `tests/gdn/test_decode_delta_rule.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2679`
