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Cartesia vs Speechmatics: catalog facts
Cartesia	Speechmatics
Paid Plans are listed on the pricing page, with a sales contact for larger deployments.	Freemium A free start is offered, with paid usage and enterprise plans through sales.
Web	Web
One API covers text-to-speech, transcription and voice agents Built for low-latency, real-time conversation	Real-time and batch transcription in many languages Speaker diarization and identification
Mainly an API for developers rather than a consumer app Cloud only, with no local option	Built mainly for developers working with an API On-premises and enterprise options require contacting sales
Hosted service	Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account 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 October 2, 2026

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