COMPARISON
Automatic3D vs Shap-E
Shap-E is an open-source research model from OpenAI published in 2023. It's no longer actively developed. Automatic3D is a maintained commercial service with a pipeline designed specifically for 3D printing.
LAST REVIEWED 2026-04
The short version
Shap-E (OpenAI, 2023) is a research paper with accompanying open-source code. It was an interesting early demonstration that text-to-3D generation was tractable, and you can still run it locally if you have the GPU and patience to set it up. The output quality reflects 2023-era capabilities: usable for research or experimentation, but below what current commercial services produce. Automatic3D uses more recent mesh generation models under the hood, adds a multi-view concept pipeline on top, and wraps it all in a hosted service with no infrastructure work required. If you want to run something locally for experimentation, Shap-E is a legitimate option. If you want something to print today, Automatic3D is the practical choice.
CHOOSE SHAP-E IF
- →You want a free, self-hostable, open-source model for research or experimentation.
- →You have a GPU and are comfortable setting up Python environments.
- →You're studying the technical approach to text-to-3D and want to inspect the code.
- →Your use case is academic or exploratory, not production printing.
CHOOSE AUTOMATIC3D IF
- →You want a current, maintained service — not a 2023 research artifact.
- →You want output quality tuned for 3D printing with today's models.
- →You don't want to manage local GPU infrastructure, Python dependencies, or model weights.
- →You want a free tier with no setup: browser, text, STL.
What each tool is
SHAP-E
Shap-E is an open-source text-to-3D research model released by OpenAI in 2023, available on GitHub. It generates 3D assets as implicit functions or textured meshes from text prompts. As a research artifact, it has no commercial infrastructure, no API, and no updates since its initial publication. You run it by cloning the repository, installing Python dependencies, and running inference locally on a CUDA-capable GPU. The model represents the state of text-to-3D research in early 2023, which has since been substantially advanced by newer models.
AUTOMATIC3D
Automatic3D is a maintained commercial SaaS running on more recent mesh generation models (Rodin, Hunyuan3D). The pipeline adds a multi-view concept step before meshing — generating a three-view collage so the mesh generator has better geometric constraints — and outputs a 500K-triangle watertight STL optimized for 3D printing. There is no local setup, no GPU required, no Python environment to manage. Free tier is 3 models and 12 concepts per month; paid tiers start at $19.99/month.
Side by side
| AUTOMATIC3D | SHAP-E | |
|---|---|---|
| STATUS | Actively maintained commercial SaaS | Research model, no updates since 2023 |
| ACCESS | Hosted web app, no setup | Self-hosted, requires GPU + Python setup |
| UNDERLYING MODEL | Rodin / Hunyuan3D (current generation) | Shap-E (2023-era model) |
| OUTPUT QUALITY | Current-generation | 2023-era research quality |
| OUTPUT FORMAT | STL (print-ready) | Implicit function or mesh (requires conversion) |
| COST | Free tier + paid plans | Free (self-hosted compute required) |
| PRINT READINESS | Watertight STL by design | Mesh cleanup typically required |
Competitor details based on publicly available information. Pricing and features change — check their site for the latest.
FAQ
Is Shap-E still worth using in 2026?
For research, education, or tinkering with the open-source code, yes — it's a good artifact for understanding early text-to-3D approaches and you can inspect every part of the pipeline. For actually printing things, the output quality is below what current commercial services produce. The field has moved significantly in the three years since Shap-E was published.
Can Shap-E output STL files?
Shap-E generates implicit 3D functions that can be converted to meshes, but the output is not post-processed for 3D printing. You'll typically need to run marching cubes to extract a mesh, then do manifold repair, hole filling, and possibly simplification before the file is printable. Automatic3D's output goes through that pipeline automatically.
How does Automatic3D compare to Shap-E in output quality?
The underlying models are not comparable — Automatic3D uses Rodin and Hunyuan3D, which are significantly more capable than Shap-E at producing coherent 3D geometry. A more meaningful comparison for Shap-E would be against other 2023-era models like Point-E. Current commercial text-to-3D has improved substantially since that generation of research.
Why does OpenAI no longer develop Shap-E?
OpenAI hasn't made a public statement about Shap-E's maintenance status, but their public focus has shifted to language, image, and video models rather than 3D. Shap-E remains available on GitHub but shouldn't be treated as an actively supported product.
Try Automatic3D free
Free tier includes 3 printable models and 12 concepts per month. No credit card required. STL files ready for any slicer.