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Chatterbox vs OpenVoice: catalog facts
Chatterbox	OpenVoice
Free Free and open source under the MIT license.	Free Free and open source under the MIT license.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Zero-shot voice cloning from a very short audio sample MIT licensed for unrestricted local use	Accurate tone-color cloning from a reference voice Fine-grained control over emotion and accent, not just voice identity
Generation quality and speed depend on available local hardware No dedicated GUI application, mainly used through code	No repository update reflected since April 2025 No official graphical application, mainly usable through code
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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