BasinShapers/sf3d-webgpu-weights

SF3D WebGPU Weights

WebGPU-ready weights for SF3D WebGPU — a browser port of Stability AI's Stable Fast 3D that runs single-image → textured 3D mesh generation entirely in WebGPU compute shaders. No server, no Python, no ONNX at inference time.

This repository hosts the converted model weights so you can skip the PyTorch conversion step: clone the app, download weights.bin, run.

Powered by Stability AI.

Files

File	Description
weights.bin	Flat fp16 binary (~2.1 GB) for direct WebGPU loading
LICENSE.md	Stability AI Community License (governs these weights)
NOTICE	Attribution + derivative-work modification notice

SHA-256(weights.bin) = 0e5c23c8c502492c0b4432006ac30f2d11b2a4c102a3bf9f21c2fcf094ddbffd

Usage

git clone https://github.com/lyonsno/sf3d-webgpu
cd sf3d-webgpu
npm install

# Download these weights into public/
hf download BasinShapers/sf3d-webgpu-weights weights.bin --local-dir public/

npm run dev   # open http://localhost:5177/

On an M4 Max the demo image generates a textured GLB in ~33s. See the application repo for the full pipeline, architecture, and PyTorch-parity receipts (the demo output is byte-for-byte reproducible).

What these weights are

This is a derivative work of Stability AI's Stable Fast 3D: a format conversion of the original model.safetensors into a single flat binary laid out for WebGPU compute shaders (fp16, transposed linear weights, WebGPU-relevant tensors only). The model architecture and learned values are unchanged. Full details are in NOTICE; the conversion tool is tools/convert_weights.py.

License

These weights are governed by the Stability AI Community License (see LICENSE.md). In summary:

• Free for research, non-commercial, and commercial use by organizations and individuals with annual revenue of US $1,000,000 or less.
• Organizations exceeding that threshold must obtain an Enterprise License from Stability AI before commercial use of SF3D or any derivative work.

This Stability AI Model is licensed under the Stability AI Community License, Copyright © Stability AI Ltd. All Rights Reserved.