---
title: "Stable Fast 3D: workflow fit, costs and terms"
description: "Quick local prop prototypes with UVs and predicted materials, within policy"
language: en
canonical: https://bestadultgames.io/en/developers/models/stable-fast-3d
---

[Developers](https://bestadultgames.io/en/developers.md) / [3D models](https://bestadultgames.io/en/developers/models?category=3d)

model · Documentation reviewed · 5 October 2026

B

# Stable Fast 3D

Quick local prop prototypes with UVs and predicted materials, within policy

- **Availability**: available
- **Where it runs**: both
- **Costs**: Eligible local use has no model-license fee; compute costs remain. Commercial users above the license's revenue limit need a separate license. Hosted API use consumes credits; account access and billing are untested.
- **Adult content policy**: restricted

Stable Fast 3D turns one image into a textured, UV-unwrapped mesh, with predicted materials and a lighting-removal step intended to make the asset easier to light in a game. Its appeal for early prop work is practical: several preparation steps sit in one local pipeline, and the output is a GLB you can inspect. Treat it as a prop prototyping tool; character topology still needs separate assessment. Gated weights and experimental Mac/Windows support complicate setup. For adult developers, the decisive limit is Stability's prohibition on sexually explicit content, which also applies locally. TripoSR's MIT license and a wrapper's license do not replace the terms for this release.

## Commercial use & license

The July 5, 2024 Stability AI Community License requires commercial registration. Its operative revenue clause terminates the grant when you and affiliates, individually or together, exceed US$1 million in annual revenue from any source. Distribution, attribution and the incorporated current AUP also apply locally. Confirm eligibility at the exact threshold, where the introductory wording and model card differ.

## Adult content rules

Stability's current AUP prohibits sexually explicit content, including content relating to sexual acts. This release incorporates the policy, and local use remains covered. The recommendation applies only to permitted non-explicit work.

[Read the policy](https://stability.ai/use-policy)

## What you need

Local setup requires PyTorch, compiled UV/texture components and access to the gated Hugging Face weights. The default single-image run reports about 6 GB GPU VRAM. Mac MPS and Windows support are experimental; the README recommends CPU use below 32 GB Mac unified memory. Hosted API use needs an API key and credits.

Ranks are recommendations for the task described, based on reviewed documentation. Model ranks cover non-explicit development work. We have not run practical benchmarks. Check content policies and commercial terms separately. [How the ranks work](https://bestadultgames.io/en/developers/methodology.md)

### Sources & further reading

- [Stable Fast 3D official repository](https://github.com/Stability-AI/stable-fast-3d)
- [Exact checkpoint license](https://github.com/Stability-AI/stable-fast-3d/blob/main/LICENSE.md)
- [Stability API reference](https://platform.stability.ai/docs/api-reference)
- [Stability current AUP](https://stability.ai/use-policy)

Last checked 5 October 2026.

## Why consider it

- UV-unwrapped meshes with predicted roughness and metallic properties
- GLB export for inspecting the result in a game engine
- Documented CPU fallback and experimental Apple Silicon MPS support

## Tradeoffs to plan for

- Gated weights and Community License eligibility conditions
- MPS uses more memory than CUDA; Mac/Windows support is experimental
- Sexually explicit work is prohibited, including local use

The tier reflects documented fit for the workflow described here and availability. No numeric score or hands-on performance results are provided.

[Compare with other models](https://bestadultgames.io/en/developers/compare?model=stable-fast-3d)

## Related guides

AI 3D · Intermediate · 6 min read

### [Choose AI 3D tools with a production acceptance matrix](https://bestadultgames.io/en/developers/guides/choose-ai-3d-tools.md)

Choose hosted or local AI 3D tools by cost per usable asset, commercial rights, editable structure and performance in your game.

Read the guide → A reading priority

AI 3D · Advanced · 6 min read

### [Turn a generated mesh into a game-ready asset](https://bestadultgames.io/en/developers/guides/generated-mesh-to-game-ready.md)

A practical pipeline for cleaning a generated mesh, checking materials and animation, and accepting its runtime cost on target devices.

Read the guide → B reading priority

AI 3D · Intermediate · 6 min read

### [Keep 3D characters consistent and choose generation or Blender authoring](https://bestadultgames.io/en/developers/guides/consistent-3d-characters.md)

Keep a recurring 3D character recognizable across poses and outfits, with an editable source, clear permissions and a practical choice of production tools.

Read the guide → A reading priority