---
id: pr-sglang-20407
repo: sgl-project/sglang
pr: 20407
title: '[Model] Support Nemotron 3 Super NVFP4'
author: mmangkad
date: '2026-03-14'
url: https://github.com/sgl-project/sglang/pull/20407
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- nvfp4
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- quantization
languages:
- python
captured_at: '2026-04-17'
status: merged
merge_sha: 75a7879fd4c149e675b50f9b21964e557577cc4f
inclusion_reason: semantic match with file changes
changed_paths:
- python/sglang/srt/configs/model_config.py
- python/sglang/srt/layers/quantization/__init__.py
- python/sglang/srt/layers/quantization/modelopt_quant.py
- python/sglang/srt/model_loader/loader.py
- python/sglang/srt/server_args.py
- test/registered/model_loading/test_modelopt_loader.py
head_ref_oid: d5b04e1c6c9f50fb5023914e8a5507b8d0d8881a
artifact_dir: evidence/pull-bundles/sglang/gh-20407
---
# [Model] Support Nemotron 3 Super NVFP4

- Repository: `sgl-project/sglang`
- PR: [20407](https://github.com/sgl-project/sglang/pull/20407)
- Decision: `semantic match with file changes`
- Reason: semantic match with file changes

## Changed Paths

- `python/sglang/srt/configs/model_config.py`
- `python/sglang/srt/layers/quantization/__init__.py`
- `python/sglang/srt/layers/quantization/modelopt_quant.py`
- `python/sglang/srt/model_loader/loader.py`
- `python/sglang/srt/server_args.py`
- `test/registered/model_loading/test_modelopt_loader.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-20407`
