curl -X POST 'https://api.openai.com/v1/audio/translations' \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -F 'file=@sample.bin' \
  -F 'model=whisper-1'

# POST /audio/translations (OpenAI API)
Base URL: https://api.openai.com/v1
Auth: Authorization; OpenAI API key; required.
Request formats: multipart/form-data.
Last verified: 2026-10-20

> Create translation

## Critical Gotchas
* The Responses API is the primary interface for new text and tool workflows; Chat Completions remains a separate compatibility API.
* Audio transcription uploads use multipart form data rather than a JSON request body.

## cURL
curl -X POST 'https://api.openai.com/v1/audio/translations' \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -F 'file=@sample.bin' \
  -F 'model=whisper-1'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| file | body | string | Yes | The audio file object (not file name) translate, in one of these formats: fla... |
| model | body | string | Yes | ID of the model to use. Only `whisper-1` (which is powered by our open source... |
| prompt | body | string | No | An optional text to guide the model's style or continue a previous audio segm... |
| response_format | body | string | No | The format of the output, in one of these options: `json`, `text`, `srt`, `ve... |
| temperature | body | number | No | The sampling temperature, between 0 and 1. Higher values like 0.8 will make t... |

## Response example
{"text":"string"}

---
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POST

POST /audio/translations — OpenAI API

OpenAI API key (required); https://api.openai.com/v1

OpenAI API

Create translation

Base URL: https://api.openai.com/v1
Auth: Authorization: Bearer <OPENAI_API_KEY>
Last verified: 2026-10-20 · upstream hash matched

Actions Try in browser→

Agents: curl -H "Accept: text/markdown" this URL
→ 307 tokens · Vary: Accept

Critical gotchas

The Responses API is the primary interface for new text and tool workflows; Chat Completions remains a separate compatibility API.

Audio transcription uploads use multipart form data rather than a JSON request body.

cURL

curl -X POST 'https://api.openai.com/v1/audio/translations' \  -H "Authorization: Bearer $OPENAI_API_KEY" \  -F '[email protected]' \  -F 'model=whisper-1'

Parameters

Name	In	Type	Required	Description
file	body	string	Yes	The audio file object (not file name) translate, in one of these formats: flac, mp3, mp4, mpeg, mpga, m4a, ogg, wav, or webm. The request must include enough format metadata for the file to be identified. We recommend an extension-bearing filename and an appropriate content type.
model	body	string	Yes	ID of the model to use. Only `whisper-1` (which is powered by our open source Whisper V2 model) is currently available.
prompt	body	string	No	An optional text to guide the model's style or continue a previous audio segment. The [prompt](https://developers.openai.com/api/docs/guides/speech-to-text#prompting) should be in English.
response_format	body	string	No	The format of the output, in one of these options: `json`, `text`, `srt`, `verbose_json`, or `vtt`.
temperature	body	number	No	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. If set to 0, the model will use [log probability](https://en.wikipedia.org/wiki/Log_probability) to automatically increase the temperature until certain thresholds are hit.

Response 200 OK

{
  "text": "string"
}

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