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AllTalk TTS vs CosyVoice: catalog facts
AllTalk TTS	CosyVoice
Free Free and open source under the AGPL-3.0 licence.	Free Free and open source.
Windows, Linux, Self-hosted	Linux, Self-hosted
Voice finetuning on your own samples Integrates with SillyTavern, KoboldCPP and Text-generation-webui	Zero-shot voice cloning across multiple languages Includes training and deployment code, not only inference
Version 1 and version 2 are documented separately, which can confuse new users Setup utility covers Windows and Linux only	Requires Python setup and a GPU for practical use Aimed at technical users rather than casual listeners
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: AGPL-3.0	License: Apache-2.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

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