Relicense the checkpoints under CC BY-NC 4.0; note the disputed Truebones provenance in the model card

LICENSE

@@ -1,21 +1,425 @@
-MIT License
-
+UniMate pretrained checkpoints
 Copyright (c) 2026 Linzhan Mou
 
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+The model weights and other files in this repository are licensed under the
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+This license covers only the rights of the UniMate authors. It grants no
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+
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README.md

@@ -1,5 +1,5 @@
 ---
-license: mit
+license: cc-by-nc-4.0
 language:
 - en
 library_name: pytorch
@@ -159,10 +159,6 @@ LICENSE
 - **New skeletons:** there is no skeleton-only input. A new rig must be converted into a feature directory with `data_process/scripts/run_preprocess_char.sh`, and needs at least one animation clip.
 - **Text:** every training caption has the subject "An object"; the skeleton determines the character. Prompts should describe the motion only.
 
-## License
-
-The checkpoints and the UniMate code are released under the [MIT License](LICENSE). The training data remain under their source licenses: Adobe's Mixamo terms of use, the per-object licenses of Objaverse-XL, and the commercial [Truebones](https://truebones.com) ZOO license. Review these terms before using the models.
-
 ## Citation
 
 ```bibtex
@@ -173,3 +169,20 @@ The checkpoints and the UniMate code are released under the [MIT License](LICENS
   year    = {2026}
 }
 ```
+
+## License
+
+The checkpoints are released under the [Creative Commons Attribution-NonCommercial 4.0 International License](LICENSE) (CC BY-NC 4.0). The UniMate [code](https://github.com/Friedrich-M/UniMate) remains under the MIT License.
+
+This license covers only our own rights in the weights. It grants no rights in the training data, which remain under their source terms:
+
+| Model | Training data | Terms |
+|---|---|---|
+| `unimate_uniml3d_f60_v2`, `unimate_uniml3d_f60_v2_full_cross_attn`, `unimate_uniml3d_f60_preview` | Truebones ZOO, Mixamo, Objaverse-XL | all three below |
+| `unimate_mixamo_f60` | Mixamo only | Adobe Mixamo |
+
+- **Truebones ZOO:** a commercial asset pack sold by [Truebones](https://truebones.com). Third parties have alleged that some of its animal assets come from commercial games (among them Resident Evil, Skyrim, Bless Online and Conan Exiles). We have not verified these claims. Until they are resolved, treat the provenance of the Truebones-trained models as unclear.
+- **Mixamo:** Adobe's Mixamo terms of use.
+- **Objaverse-XL:** the license attached to each source object. Some of these licenses are non-commercial.
+
+The authors make no warranty that the checkpoints, or the motions generated with them, are free of third-party rights. If you hold rights in any of the training data and have a concern, please open a discussion on this repository or contact the authors.