API Platforms
Transcription & STT
Audio
Rev AI
Rev
Rev AI provides automated transcription, caption generation, diarization, and speech analytics APIs.
PricingFree + paid
APIAvailable
Open sourceNo
Usage-based pricing.
Related platforms
AssemblyAI
AssemblyAI
Speech AI platform for transcription and audio intelligence.
APIClosedFree tierPaid plans
Deepgram
Deepgram
Enterprise speech-to-text and voice AI platform.
APIClosedFree tierPaid plans
Speechmatics
Speechmatics
Multilingual speech recognition and transcription platform.
APIClosedFree tierPaid plans
Amazon Transcribe
Amazon Web Services
AWS's managed STT — deepest AWS ecosystem integration, HIPAA-eligible, call analytics, and medical model.
APIClosedFree tierPaid plans