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ChatTTS vs Fish Speech: catalog facts
ChatTTS	Fish Speech
Free Free; the code is AGPL-3.0 and the released model is for academic use.	Free Free to download and run; check the repository license for usage terms.
Command line	Self-hosted
Natural conversational prosody with laughter and pauses Multiple speakers in one model	Runs locally with a web UI Docker Compose setups, including AMD ROCm
Only English and Chinese supported Released model is restricted to academic use	Needs a capable GPU and some setup License terms should be checked before commercial use
Downloadable app	Downloadable app, Self-hosted
Open source	Closed source
License: AGPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.