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Zonos vs Spark-TTS: catalog facts
Zonos	Spark-TTS
Free Free open-weight model and code.	Free Free to download and run locally.
Linux, Self-hosted	Windows, macOS, Linux, Command line
Voice cloning from a short reference sample Trained on over 200k hours of multilingual speech	Voice cloning from a short sample Command line and local web interface
Needs Python setup and a capable GPU for comfortable speed Early v0.1 release with a small commit history	Requires Python and model downloads to set up No repository activity since April 2025
Downloadable app, Self-hosted	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 2, 2026

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