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AssemblyAI vs Speechmatics: catalog facts
AssemblyAI	Speechmatics
Paid Commercial API service; see the site for current rates.	Freemium A free start is offered, with paid usage and enterprise plans through sales.
Web	Web
Realtime and pre-recorded transcription in 99 languages Speech understanding and dictation APIs alongside transcription	Real-time and batch transcription in many languages Speaker diarization and identification
Built for developers, not a ready-made transcription app Cloud API by default	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 October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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