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Coqui TTS vs Chatterbox: catalog facts
Coqui TTS	Chatterbox
Free Free and open source under the Mozilla Public License 2.0.	Free Free and open source under the MIT license.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Pretrained models across a very large number of languages Supports both inference and full model training or fine-tuning	Zero-shot voice cloning from a very short audio sample MIT licensed for unrestricted local use
No repository update reflected since mid-2024, coinciding with the original company shutting down Advanced use requires deep learning familiarity	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: MPL-2.0	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.