---
title: "CreateAudioTranscriptionsMultipartRequestBody"
---

## Fields

| Field                                                                                                                                                                                         | Type                                                                                                                                                                                          | Required                                                                                                                                                                                      | Description                                                                                                                                                                                   |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `file`                                                                                                                                                                                        | [operations.CreateAudioTranscriptionsMultipartFile](../operations/createaudiotranscriptionsmultipartfile.mdx)                                                                                  | :heavy_check_mark:                                                                                                                                                                            | The audio file to transcribe. The format is derived from the filename extension or the file part content type. Max 25 MB; send larger files as base64 JSON via input_audio.                   |
| `language`                                                                                                                                                                                    | *Optional[str]*                                                                                                                                                                               | :heavy_minus_sign:                                                                                                                                                                            | The language of the input audio (ISO-639-1).                                                                                                                                                  |
| `model`                                                                                                                                                                                       | *str*                                                                                                                                                                                         | :heavy_check_mark:                                                                                                                                                                            | The model to use for transcription.                                                                                                                                                           |
| `response_format`                                                                                                                                                                             | [Optional[operations.ResponseFormat]](../operations/responseformat.mdx)                                                                                                                        | :heavy_minus_sign:                                                                                                                                                                            | The response format. "json" (default) returns \{ text, usage }; "verbose_json" additionally returns task, language, duration, and segment-level timestamps (OpenAI-compatible providers only). |
| `temperature`                                                                                                                                                                                 | *Optional[float]*                                                                                                                                                                             | :heavy_minus_sign:                                                                                                                                                                            | The sampling temperature.                                                                                                                                                                     |
| `timestamp_granularities`                                                                                                                                                                     | List[[operations.TimestampGranularities](../operations/timestampgranularities.mdx)]                                                                                                            | :heavy_minus_sign:                                                                                                                                                                            | Timestamp detail levels to include when response_format is "verbose_json". "word" additionally returns word-level timestamps in the words array.                                              |