Alpha3D vs Stable Fast 3D
Alpha3D
alpha3d.ioStable Fast 3D
stability.aiSide by side
| Figure | Alpha3D | Stable Fast 3D |
|---|---|---|
| Price from | €5/mo | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Plans published | 4 | 2 |
| Spec score · AI 3D Model Generators | 8.6 (#5) | 7.8 (#15) |
| Image to 3D | A product or object photograph can be converted into a textured mesh, with clearer single-object images recommended for better results. | Stable Fast 3D takes one image of an object and generates a textured, UV-unwrapped 3D mesh asset. |
| Integrations | Official materials describe support for Unity, Unreal, Blender, printer-oriented tools and model-viewer based AR commerce. | The repository provides custom nodes and an example workflow for ComfyUI. |
| Support | The company lists general, developer/API, business/enterprise, and partnership contact emails, and says its FAQ team aims to respond within one business day. | Stability AI directs users to submit a support request through its Knowledge Base. |
Plans
In their own words
Stable Fast 3D
Stable Fast 3D turns an image of an object into a textured, UV-unwrapped 3D mesh. Stability AI describes the model as generating a 3D model from one image in under one second. It expects a 512 × 512 pixel input, applies a delighting step, and predicts roughness and metallic material parameters. The official code example saves the result as a GLB file. The repository includes custom nodes and an example workflow for ComfyUI, and API access is available. Documented inference options include CUDA, CPU, and experimental Mac MPS; Windows support is marked experimental. Default settings use about 6 GB of VRAM for one image. Stability AI identifies game and VR developers and professionals in retail, architecture, and design among its intended users. The Community License is free; commercial use above US $1 million in annual revenue requires an Enterprise License. Access to model files requires agreeing to share contact information and accepting the license.