Compare software

CartesiaAssemblyAI
Paid

Plans are listed on the pricing page, with a sales contact for larger deployments.

 Paid

Commercial API service; see the site for current rates.

Web Web
  • One API covers text-to-speech, transcription and voice agents
  • Built for low-latency, real-time conversation
  • Realtime and pre-recorded transcription in 99 languages
  • Speech understanding and dictation APIs alongside transcription
  • Mainly an API for developers rather than a consumer app
  • Cloud only, with no local option
  • Built for developers, not a ready-made transcription app
  • Cloud API by default
Hosted service Hosted service
Closed source Closed source
License not stated License not stated
Account needed Account needed
Needs internet Needs internet

Checked September 26, 2026

Checked October 1, 2026

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