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Orpheus TTS vs ChatTTS: catalog facts
Orpheus TTS	ChatTTS
Free Free to download and run yourself.	Free Free; the code is AGPL-3.0 and the released model is for academic use.
Command line	Command line
Emotion tags for expressive speech Realtime streaming example included	Natural conversational prosody with laughter and pauses Multiple speakers in one model
No packaged desktop app; needs a Python setup Multilingual models are a research preview	Only English and Chinese supported Released model is restricted to academic use
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0
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 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.