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AssemblyAI vs Speaches: catalog facts
AssemblyAI	Speaches
Paid Commercial API service; see the site for current rates.	Free Free and open source under the MIT licence.
Web	Self-hosted
Realtime and pre-recorded transcription in 99 languages Speech understanding and dictation APIs alongside transcription	Drop-in replacement for OpenAI's speech and transcription endpoints Streaming transcription over SSE
Built for developers, not a ready-made transcription app Cloud API by default	A server with an API, not an end-user app Setup is based on Docker
Hosted service	Self-hosted
Closed source	Open source
License not stated	License: MIT
Account needed	No 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 September 26, 2026

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