OpenAI · Schema

CreateTranscriptionRequest

AIArtificial IntelligenceLarge Language ModelsT1

Properties

Name Type Description
file string The audio file object to transcribe, in one of these formats: flac, mp3, mp4, mpeg, mpga, m4a, ogg, wav, or webm. File uploads are limited to 25 MB.
model string ID of the model to use. Only whisper-1 and gpt-4o-transcribe are currently available.
language string The language of the input audio. Supplying the input language in ISO-639-1 format will improve accuracy and latency.
prompt string An optional text to guide the model's style or continue a previous audio segment. The prompt should match the audio language.
response_format string The format of the transcript output. Defaults to json. verbose_json includes additional metadata like word-level timestamps.
temperature number The sampling temperature, between 0 and 1. Higher values like 0.8 will make the output more random, while lower values like 0.2 will make it more focused and deterministic.
timestamp_granularities array The timestamp granularities to populate for this transcription. response_format must be set to verbose_json to use this parameter.
View JSON Schema on GitHub