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Chatterbox vs Coqui TTS: catalog facts
Chatterbox	Coqui TTS
Free Free and open source under the MIT license.	Free Free and open source under the Mozilla Public License 2.0.
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	Pretrained models across a very large number of languages Supports both inference and full model training or fine-tuning
Generation quality and speed depend on available local hardware No dedicated GUI application, mainly used through code	No repository update reflected since mid-2024, coinciding with the original company shutting down Advanced use requires deep learning familiarity
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: MIT	License: MPL-2.0
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.