---
id: pr-vllm-19990
repo: vllm-project/vllm
pr: 19990
title: '[Quantization] Add compressed-tensors NVFP4 MoE Support'
author: dsikka
date: '2025-06-29'
url: https://github.com/vllm-project/vllm/pull/19990
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- kernel-fusion
- moe
- nvfp4
- quantization
techniques:
- kernel-fusion
hardware_features:
- fp4
- nvfp4
kernel_types:
- moe
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 6f2f53a82dc9703abb389761bf9931e3c9a5a75b
inclusion_reason: kernel file changes
changed_paths:
- tests/quantization/test_compressed_tensors.py
- vllm/model_executor/layers/fused_moe/layer.py
- vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors.py
- vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors_moe.py
- vllm/model_executor/layers/quantization/compressed_tensors/schemes/compressed_tensors_w4a4_nvfp4.py
- vllm/model_executor/layers/quantization/utils/nvfp4_emulation_utils.py
head_ref_oid: 97f99a62674f3c909fd9fa34bb79fa182abfdcd4
artifact_dir: evidence/pull-bundles/vllm/gh-19990
---
# [Quantization] Add compressed-tensors NVFP4 MoE Support

- Repository: `vllm-project/vllm`
- PR: [19990](https://github.com/vllm-project/vllm/pull/19990)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `tests/quantization/test_compressed_tensors.py`
- `vllm/model_executor/layers/fused_moe/layer.py`
- `vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors.py`
- `vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors_moe.py`
- `vllm/model_executor/layers/quantization/compressed_tensors/schemes/compressed_tensors_w4a4_nvfp4.py`
- `vllm/model_executor/layers/quantization/utils/nvfp4_emulation_utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-19990`
