Stable Fast 3D

Stable Fast 3D turns a single object image into a textured 3D mesh, making it most relevant to developers and graphics professionals building image-driven asset workflows. Its appeal is speed and a focused GLB pipeline; the revenue-based license threshold, model-file access terms, and hardware demands deserve a careful check first.

Overview

The model creates a UV-unwrapped mesh from one image, with a stated generation time of under one second. That is a strong fit when a workflow needs to convert object references into 3D assets quickly. The fixed 512 × 512 input and image-only approach are constraints for teams that need text prompting or more varied source inputs.

Stable Fast 3D applies a delighting step and predicts roughness and metallic parameters per object. Those material cues make the result more useful as a graphics asset than shape alone, but the product does not provide rigging or animation. GLB is the documented output, so it suits pipelines that accept that format.

Key features

• Single-image reconstruction: Generates a textured, UV-unwrapped mesh from one object image. The narrow input method keeps the workflow focused, but rules out text-to-3D generation.
• Material handling: Delighting and per-object roughness and metallic predictions provide a material-aware starting point for graphics work.
• ComfyUI integration: Repository custom nodes and an example workflow can fit teams already using ComfyUI.
• Inference options: The repository documents CUDA, experimental Mac MPS support, and CPU inference. Default settings use about 6 GB of VRAM for one image; Windows support is experimental. These options offer flexibility, but the memory requirement and platform caveats matter for deployment planning.
• Access and safety: Accessing model files requires sharing contact information and accepting the license agreement. Stability AI recommends developers test the model and add safeguards suited to their use cases.

Pricing

The Community License is free. It covers research and non-commercial use, and commercial use for organizations or individuals with annual revenue of US $1 million or less. Above that threshold, an Enterprise License is required before commercial use of the model or its derivatives.

The Stable Fast 3D API has custom pricing: each generation costs 10 credits, and 1 credit = $0.01.

There is no free trial. The free license is therefore the entry point for eligible use, while higher-revenue commercial users need an Enterprise License. API access is the paid route for metered generation.

Platforms

Stable Fast 3D is available through API, Linux, macOS, web, and Windows. Repository support distinguishes CUDA, experimental Mac MPS, CPU inference, and experimental Windows support; users should match those caveats to their deployment environment. Support requests go through Stability AI's Knowledge Base.

Who it's for

Stability AI identifies game and VR developers, along with professionals in retail, architecture, design, and other graphics-intensive fields, as intended users. It is best for people who can feed it object images and use GLB mesh assets in their workflow. It is a poor fit for projects that require text-to-3D, rigging, or animation.

Pros and cons

• Pro: Under-one-second generation from one image can suit fast asset-conversion workflows.
• Pro: Texturing, UV unwrapping, delighting, and material parameter prediction give the output several useful graphics-oriented treatments.
• Pro: Free use includes commercial use at or below the US $1 million annual revenue threshold.
• Con: The 512 × 512 image input and image-only generation limit the range of source material and exclude text prompts.
• Con: Default inference uses about 6 GB of VRAM, and Windows support is experimental.
• Con: Commercial use above the revenue threshold requires an Enterprise License, and model-file access entails sharing contact information and accepting license terms.
• Con: GLB is the documented output, with no rigging or animation capability.

Alternatives

AI 3D Model Generators is a broader category directory for comparing tools.

Choose Polar Cloud instead if managing 3D printing is the priority: its free plan covers one printer, five print jobs per month, seven-day history, and 300 MB storage, with mesh-only files and a 30 MB file limit.

Meshy is another freemium option, with a free plan offering 100 credits and 10 monthly downloads for Meshy 6 Lite models.

Hi3D offers a lifetime free allowance of 100 credits, up to 10 asset generations, one concurrent task, and storage for up to seven public models under CC BY 4.0.

Polycam is worth comparing for capture workflows; its free plan includes limited space, object, and AI captures, GLTF exports, and public link sharing.

Unique3D is a free option with an online demo that requires a registration invitation code.

Crisp3D offers a web-based freemium option; its free plan limits users to one concurrent task and public models, with no downloads.

Hyper3D Rodin is another freemium option for readers comparing API and web platforms.

Scenario offers a free tier with 50 daily credits, no credit card requirement, and personal and evaluation use only.

Verdict

Stable Fast 3D is a sensible choice for graphics professionals and developers who need rapid, single-image-to-GLB mesh creation and can meet its hardware and license conditions. Choose it for that focused reconstruction workflow; look elsewhere if you need text-to-3D, rigging, animation, or a broader capture path.