# Model Weight License

The released fine-tuned model weights are licensed under Creative Commons
Attribution-NonCommercial 4.0 International (`CC BY-NC 4.0`).

In practical terms, this allows sharing and adaptation with attribution for
non-commercial use. It does not grant commercial use rights for the model
weights.

## Rationale

This project fine-tunes Cellpose-SAM (`cpsam`). The Cellpose software and the
upstream `mouseland/cellpose-sam` Hugging Face repository are distributed under
BSD 3-Clause, while the Cellpose README notes that Cellpose-SAM was trained on
CC-BY-NC data and that the Cellpose annotated dataset is CC-BY-NC.

Because this release is an experimental fine-tune intended for research use,
the model weights are published under `CC BY-NC 4.0` to preserve a
non-commercial use boundary. This is a license choice for these released
fine-tuned weights; it is not a statement that the GitHub code has the same
license.

The GitHub code, notebooks, and documentation are separate from the model
weights and are licensed under the BSD 3-Clause License.