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MODEL_LICENSES.md

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+# Third-Party Model Licenses
+
+This project uses the following third-party models. Their original license files are included in the `licenses/` directory.
+
+> **This project is NOT suitable for commercial use** due to the CC BY-NC 4.0 license on BRIA RMBG-2.0 and the NVIDIA Source Code License on nvdiffrast/nvdiffrec dependencies.
+
+## Models
+
+| Model | Source | License | Commercial Use |
+|---|---|---|---|
+| TRELLIS.2-4B | [microsoft/TRELLIS.2-4B](https://huggingface.co/microsoft/TRELLIS.2-4B) | MIT | Yes* |
+| BRIA RMBG-2.0 | [briaai/RMBG-2.0](https://huggingface.co/briaai/RMBG-2.0) | CC BY-NC 4.0 | **No** |
+| DINOv2 | [facebookresearch/dinov2](https://github.com/facebookresearch/dinov2) | Apache 2.0 | Yes |
+| BiRefNet | [ZhengPeng7/BiRefNet](https://github.com/ZhengPeng7/BiRefNet) | MIT | Yes |
+
+*\* TRELLIS.2 code and weights are MIT, but the pipeline depends on [nvdiffrast](https://github.com/NVlabs/nvdiffrast) and [nvdiffrec](https://github.com/NVlabs/nvdiffrec) (NVIDIA Source Code License), which restrict usage to non-commercial research and evaluation.*
+
+## License Files
+
+- [`licenses/LICENSE-TRELLIS2-MIT`](licenses/LICENSE-TRELLIS2-MIT) - Microsoft TRELLIS.2 (MIT)
+- [`licenses/LICENSE-DINOV2-APACHE2`](licenses/LICENSE-DINOV2-APACHE2) - Meta DINOv2 (Apache 2.0)
+- [`licenses/LICENSE-BiRefNet-MIT`](licenses/LICENSE-BiRefNet-MIT) - BiRefNet (MIT)
+- [`licenses/LICENSE-RMBG2-CC-BY-NC-4.0`](licenses/LICENSE-RMBG2-CC-BY-NC-4.0) - BRIA RMBG-2.0 (CC BY-NC 4.0)
+
+## Details
+
+### TRELLIS.2-4B (MIT)
+The main 3D generation pipeline. Code and model weights are released under the MIT License by Microsoft Corporation.
+
+### BRIA RMBG-2.0 (CC BY-NC 4.0)
+Used for automatic background removal during image preprocessing. Released under Creative Commons Attribution-NonCommercial 4.0 International. **Commercial use requires a separate paid license from [BRIA AI](https://bria.ai).**
+
+### DINOv2 (Apache 2.0)
+Vision transformer used as the image conditioning backbone. Released by Meta/Facebook Research under the Apache License 2.0.
+
+### BiRefNet (MIT)
+Bilateral Reference Network for image segmentation, used as a fallback background removal model. Released under the MIT License.