---
id: pr-vllm-30408
repo: vllm-project/vllm
pr: 30408
title: 'fix(gguf): Disable bfloat16 for GGUF on blackwell device'
author: kitaekatt
date: '2025-12-12'
url: https://github.com/vllm-project/vllm/pull/30408
source_category: upstream-code
architectures:
- sm100
tags:
- quantization
techniques: []
hardware_features: []
kernel_types:
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: dc13c99eedf837f22f60e9b5836abf147f5254f1
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/quantization/gguf.py
head_ref_oid: 157a9fe73d97bb652950d499c634049ce00371ab
artifact_dir: evidence/pull-bundles/vllm/gh-30408
---
# fix(gguf): Disable bfloat16 for GGUF on blackwell device

- Repository: `vllm-project/vllm`
- PR: [30408](https://github.com/vllm-project/vllm/pull/30408)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/quantization/gguf.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-30408`
