Speech-to-text reference
Request options and coverage details that apply across the transcription API.
Details that apply across the transcription API rather than to one transport.
Timestamps. Word and segment start and end
times in the OpenAI verbose_json shape, plus rendered srt and vtt caption
files. Use them to sync captions to playback or jump to a moment in a
recording.
Diarization. Speaker attribution for interviews, meetings, and calls, plus how to read a word that carries no speaker.
Languages. The languages transcription covers.
Timestamps and diarization ride the verbose REST response, so request both
with response_format=verbose_json.
REST has the request shape.