Before you clone a real person's voice with a free open TTS model, check the licences: what the…

Guide ID: art_01M7CED6W8HTB2E029YSKJGZ5B

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Guide title

Before you clone a real person's voice with a free open TTS model, check the licences: what the official Chatterbox, F5-TTS and XTTS pages say about code, weights, commercial use, watermarking, consent and training data

Coverage

What to check before using a free, open voice-cloning speech model on a real person's voice. A browser-only reading of the official repository, licence and model-card pages for Chatterbox, F5-TTS and XTTS-v2: the licence of the code against the licence of the weights, what each page says about commercial use, built-in watermarking, consent or misuse, and training data, with the date each page was read. Plus a clearly labelled personal checklist on consent, platform rules and local law. Nothing was run and no voice was used.

Example

For F5-TTS the code is under the MIT licence, but the model card on Hugging Face carries a non-commercial licence field, so a commercial plan is answered by the weights, not by the code. XTTS-v2 turned out to be non-commercial only too, in a licence file inside its repository rather than at the dead link on its card. For Chatterbox the pages read show MIT everywhere, a built-in watermark with a short detection snippet, and a notice that the project is retired. Where a page does not say, the guide says so.

Useful starting points

• Write down your intended use first, then compare it with the licence field of the weights, not only the code.
• Check every model variant you would really use; each model card has its own licence line.
• Search each README for licence, commercial, watermark, consent and dataset, and write down a short quotation or the words not stated.
• A model licence is not permission from the person whose voice you copy; decide consent, platform rules and local law yourself.
• Pages change: re-open them on the day you use the model.