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GPT-SoVITS vs IndexTTS: catalog facts
GPT-SoVITS	IndexTTS
Free Free to download and run from the public repository.	Free Free to download and run from the GitHub repository.
Windows, Linux	Command line
Few-shot voice cloning from about a minute of audio Local web UI for training and inference	Zero-shot voice cloning from a reference sample Control over emotion and duration
Training benefits from a capable GPU Setup involves Python environments and model downloads	Requires a Python setup and suitable hardware License terms need checking before commercial use
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 26, 2026

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