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Cartesia vs Voice.ai: catalog facts
Cartesia	Voice.ai
Paid Plans are listed on the pricing page, with a sales contact for larger deployments.	Freemium Free to start, with paid plans listed on the pricing page.
Web	Web
One API covers text-to-speech, transcription and voice agents Built for low-latency, real-time conversation	Voice changer plus text-to-speech in one service Thousands of voices to choose from
Mainly an API for developers rather than a consumer app Cloud only, with no local option	Focus has shifted toward business voice agents Platform support for the desktop installer is not stated on the homepage
Hosted service	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

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