Printable geometry

Step1X-3DAlpha

StepFun's sharp-geometry model. It turns one photo into clean, watertight geometry with crisp edges, made for 3D printing, figurines, and statuettes. Geometry only, and Apache 2.0 with no regional restrictions.

Install in 3D Mate All models

One of several local engines in 3D Mate. Switch per model, any time.

Step1X-3D runs fully offline on a Mac inside 3D Mate. StepFun's engine turns one photo into clean, watertight geometry with crisp edges, made for 3D printing, entirely on Apple Silicon with no cloud upload or account. It needs 12 GB of unified memory at minimum (higher detail on 48 GB or more) and only about 6 GB of disk, finishing in several minutes on an M1 Pro. It is Apache 2.0 licensed with no regional limits, and exports GLB and STL. For a textured all-rounder use TRELLIS.2 4B; for the sharpest geometry see TripoSG.

Made with 3D Mate. A sample result, to show the app's output.

What it is great at

  • Clean, watertight geometry with crisp edges, aimed at 3D printing.
  • Figurines and statuettes, where a solid printable mesh matters more than color.
  • A single photo to a print-ready shape, entirely on your Mac.

Trade-offs

  • Geometry only. It ships the shape as GLB and STL, without texture.
  • Takes minutes rather than seconds. On large-memory Macs it generates at higher detail.

At a glance

Unified memory
12 GB minimum. Higher detail on 48 GB or more
On disk
About 6 GB
Speed · M1 Pro, 32 GB
Several minutes
Exports
GLB, STL
License
Apache 2.0, no regional limits
Works offline
Fully on your Mac. No internet or cloud, nothing uploaded.

The original model

Model on Hugging Face Code on GitHub

Try Step1X-3D on your Mac.

Install in 3D Mate

Free to try. Install Step1X-3D from inside the app, in a click.

FAQ

Does Step1X-3D run offline on Mac?
Yes. Step1X-3D runs entirely on your Mac, fully offline and on-device. No internet connection, no cloud account, and nothing you import or generate ever leaves your machine.
Do I need an internet connection or an account to use Step1X-3D?
No. Once 3D Mate and the Step1X-3D engine are installed, everything runs locally on Apple Silicon. You can generate 3D models with Step1X-3D on a Mac that is completely offline.