---
license: other
license_name: sam-license
license_link: LICENSE
tags:
  - segmentation
  - sam3
  - mlx
  - mirror
---

# SceneWorks/sam3-mlx

A **redistribution mirror** of [`facebook/sam3`](https://huggingface.co/facebook/sam3)
(Segment Anything 3) for download-on-first-use by the [SceneWorks](https://github.com/michaeltrefry) macOS worker.

The native-MLX (Rust `mlx-gen-sam3`) SAM3 segmenter loads the **stock checkpoint directly** — no
conversion — and drives text-concept Promptable Concept Segmentation ("person") for the
Replace-Person person-track pipeline (epic 4910). This mirror exists only so the app can fetch the
weights without the gated `facebook/sam3` access flow.

## Files
- `model.safetensors` — the SAM3 checkpoint (~0.9B params, F32), byte-identical to `facebook/sam3`.
- `tokenizer.json` — the CLIP-H text tokenizer used for the concept prompt.
- `LICENSE` — the Meta **SAM License** (included as required by the license; it governs use of the Materials).

## License
These weights are © Meta and distributed under the **SAM License** (see `LICENSE`). This mirror
redistributes them unmodified under that license. Refer to the original
[`facebook/sam3`](https://huggingface.co/facebook/sam3) model card for intended use, capabilities,
and limitations.