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Deepgram vs AssemblyAI: catalog facts
Deepgram	AssemblyAI
Freemium Free sign-up for trying the APIs, with paid usage and enterprise plans.	Paid Commercial API service; see the site for current rates.
Web, Self-hosted	Web
Speech-to-text, text-to-speech and voice agents from one provider Real-time streaming as well as batch transcription	Realtime and pre-recorded transcription in 99 languages Speech understanding and dictation APIs alongside transcription
Built for developers integrating an API, not a consumer app Usage beyond the free tier is paid	Built for developers, not a ready-made transcription app Cloud API by default
Self-hosted, Hosted service	Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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