---
id: pr-vllm-31055
repo: vllm-project/vllm
pr: 31055
title: '[Bugfix] Fix GLM-4 MoE router logits dtype for data parallel chunking'
author: ReinforcedKnowledge
date: '2026-01-06'
url: https://github.com/vllm-project/vllm/pull/31055
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: 4e67a8f616f4f202fd7a549978914f398a738d49
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/config.py
- vllm/model_executor/layers/fused_moe/layer.py
- vllm/model_executor/models/glm4_moe.py
head_ref_oid: 83b2e4feefca623f0c397a6ebb5a4dc1ebf962a3
artifact_dir: evidence/pull-bundles/vllm/gh-31055
---
# [Bugfix] Fix GLM-4 MoE router logits dtype for data parallel chunking

- Repository: `vllm-project/vllm`
- PR: [31055](https://github.com/vllm-project/vllm/pull/31055)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/config.py`
- `vllm/model_executor/layers/fused_moe/layer.py`
- `vllm/model_executor/models/glm4_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-31055`
