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ChatTTS vs Orpheus TTS: catalog facts
ChatTTS	Orpheus TTS
Free Free; the code is AGPL-3.0 and the released model is for academic use.	Free Free to download and run yourself.
Command line	Command line
Natural conversational prosody with laughter and pauses Multiple speakers in one model	Emotion tags for expressive speech Realtime streaming example included
Only English and Chinese supported Released model is restricted to academic use	No packaged desktop app; needs a Python setup Multilingual models are a research preview
Downloadable app	Downloadable app
Open source	Closed source
License: AGPL-3.0	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 October 2, 2026	Official website Full listing and sources Checked September 26, 2026

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