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

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