---
id: pr-vllm-31534
repo: vllm-project/vllm
pr: 31534
title: '[Fix] Align fused moe lora_b shape with peft'
author: linitra24
date: '2025-12-31'
url: https://github.com/vllm-project/vllm/pull/31534
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- moe
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: ecd49ce7e69a50892be7f9841941ca2d7e3b12ea
inclusion_reason: kernel file changes
changed_paths:
- docs/models/supported_models.md
- tests/lora/test_gptoss_tp.py
- vllm/lora/layers/fused_moe.py
head_ref_oid: d6e40b9f34acbd160d19bd04039a91e05605d1b6
artifact_dir: evidence/pull-bundles/vllm/gh-31534
---
# [Fix] Align fused moe lora_b shape with peft

- Repository: `vllm-project/vllm`
- PR: [31534](https://github.com/vllm-project/vllm/pull/31534)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `docs/models/supported_models.md`
- `tests/lora/test_gptoss_tp.py`
- `vllm/lora/layers/fused_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-31534`
