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CosyVoice vs Chatterbox: catalog facts
CosyVoice	Chatterbox
Free Free and open source.	Free Free and open source under the MIT license.
Linux, Self-hosted	Windows, macOS, Linux, Command line
Zero-shot voice cloning across multiple languages Includes training and deployment code, not only inference	Zero-shot voice cloning from a very short audio sample MIT licensed for unrestricted local use
Requires Python setup and a GPU for practical use Aimed at technical users rather than casual listeners	Generation quality and speed depend on available local hardware No dedicated GUI application, mainly used through code
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: Apache-2.0	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 22, 2026

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