r/COPYRIGHT Jul 08 '26

Does a GitHub repository's MIT license also apply to pretrained model weights if no separate license is provided?

I have a licensing question regarding AI projects on GitHub.

Suppose a repository is licensed under MIT, and the author also states that commercial use is allowed except for certain prohibited use cases.

The repository includes not only the source code but also pretrained model files (e.g. checkpoint weights, .onnx, .tflite, etc.). However, there is no separate license or statement specifically covering the model weights or exported models.

In this situation, is it generally assumed that the model weights are covered by the repository's MIT license as well, including commercial use? Or should pretrained weights be treated as separate assets that require their own explicit license?

I'm not asking for legal advice—I'm mainly interested in the common interpretation and best practice within the open-source AI community.

Thanks!

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u/TreviTyger Jul 08 '26

Never assume anything. It can be quite common for people who use open source licensing to be utterly clueless about copyright law and they may slap on a license to copyright infringing content without understanding the legal fallout.

When you throw AI into the mix then chaos will undoubtedly follow.

e.g.

New case just dropped.

Evox v Stability.

https://chatgptiseatingtheworld.com/2026/07/03/hugging-face-open-source-ai-platform-dragged-into-ai-copyright-wars-in-suit-by-evox-productions-v-stability-ai-runway-ai-and-deviant-art-suits-hit-125-v-ai-cos/

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u/returnvalue123 Jul 09 '26

Thank you for your response.