Speech-To-Text

AssemblyAI

Speech-to-text and audio intelligence API

Corti

Healthcare AI APIs for transcription, coding, and clinical agents

Deepgram

Real-time speech-to-text platform

iFlyrec 讯飞听见

iFlytek's high-accuracy speech-to-text, transcription and meeting-notes platform

Smallest.ai

Low-latency text-to-speech, STT and voice agents built on small models

Speechmatics

Enterprise speech-to-text API

Whisper API

OpenAI's open-source speech-to-text