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

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