---
id: pr-vllm-20457
repo: vllm-project/vllm
pr: 20457
title: Support Llama 4 for fused_marlin_moe
author: mgoin
date: '2025-07-04'
url: https://github.com/vllm-project/vllm/pull/20457
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- kernel-fusion
- moe
- quantization
techniques:
- kernel-fusion
hardware_features:
- fp8
kernel_types:
- moe
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 0e3fe896e2a02e7ca74525c1a79f4cd428320eb6
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/fused_marlin_moe.py
- vllm/model_executor/layers/quantization/awq_marlin.py
- vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors_moe.py
- vllm/model_executor/layers/quantization/fp8.py
- vllm/model_executor/layers/quantization/gptq_marlin.py
- vllm/model_executor/layers/quantization/modelopt.py
head_ref_oid: c50513d5430397c1f5af4f4763f19105c7ce9fcd
artifact_dir: evidence/pull-bundles/vllm/gh-20457
---
# Support Llama 4 for fused_marlin_moe

- Repository: `vllm-project/vllm`
- PR: [20457](https://github.com/vllm-project/vllm/pull/20457)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/fused_marlin_moe.py`
- `vllm/model_executor/layers/quantization/awq_marlin.py`
- `vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors_moe.py`
- `vllm/model_executor/layers/quantization/fp8.py`
- `vllm/model_executor/layers/quantization/gptq_marlin.py`
- `vllm/model_executor/layers/quantization/modelopt.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-20457`
