--- title: GPT-4o Transcribe description: A speech-to-text model that uses GPT-4o to transcribe audio with improved word error rate and better language recognition compared to original Whisper models. image: https://developers.cloudflare.com/dev-products-preview.png --- [Skip to content](#%5Ftop) Was this helpful? YesNo [ Report issue ](https://github.com/cloudflare/cloudflare-docs/issues/new/choose) Copy page ![OpenAI logo](https://developers.cloudflare.com/_astro/openai.BI8PEEzI.svg) # GPT-4o Transcribe Automatic Speech Recognition • OpenAI • Proxied `openai/gpt-4o-transcribe` A speech-to-text model that uses GPT-4o to transcribe audio with improved word error rate and better language recognition compared to original Whisper models. | Model Info | | | ----------------- | -------------------------------------- | | Terms and License | [link ↗](https://openai.com/policies/) | | More information | [link ↗](https://openai.com/) | ## Usage TypeScript ``` const response = await env.AI.run( 'openai/gpt-4o-transcribe', { file: 'https://cdn.openai.com/API/docs/audio/alloy.wav', }, { gateway: { id: 'default' }, } ) console.log(response) ``` Explain Code Input / Output JSON * [ Input ](#tab-panel-172) * [ Output ](#tab-panel-173) ``` { "file": "https://cdn.openai.com/API/docs/audio/alloy.wav" } ``` ``` { "text": "The sun rises in the east and sets in the west. This simple fact has been observed by humans for thousands of years." } ``` ## Examples **With Language Hint** — Transcribe with a language hint for better accuracy TypeScript ``` const response = await env.AI.run( 'openai/gpt-4o-transcribe', { file: 'https://cdn.openai.com/API/docs/audio/shimmer.wav', language: 'en', }, { gateway: { id: 'default' }, } ) console.log(response) ``` Explain Code Input / Output JSON * [ Input ](#tab-panel-174) * [ Output ](#tab-panel-175) ``` { "file": "https://cdn.openai.com/API/docs/audio/shimmer.wav", "language": "en" } ``` ``` { "text": "The beach was a popular spot on a hot summer day. People were swimming in the ocean, building sandcastles, and playing beach volleyball." } ``` **Guided Transcription** — Use a prompt to guide transcription style and context TypeScript ``` const response = await env.AI.run( 'openai/gpt-4o-transcribe', { file: 'https://cdn.openai.com/API/docs/audio/fable.wav', language: 'en', prompt: 'This is a technical discussion about Kubernetes and cloud-native architecture.', }, { gateway: { id: 'default' }, } ) console.log(response) ``` Explain Code Input / Output JSON * [ Input ](#tab-panel-176) * [ Output ](#tab-panel-177) ``` { "file": "https://cdn.openai.com/API/docs/audio/fable.wav", "language": "en", "prompt": "This is a technical discussion about Kubernetes and cloud-native architecture." } ``` ``` { "text": "The library is a quiet and peaceful place where people go to read, study, and learn. The shelves are filled with books on every subject imaginable." } ``` **High Temperature** — Higher temperature for more varied transcription TypeScript ``` const response = await env.AI.run( 'openai/gpt-4o-transcribe', { file: 'https://cdn.openai.com/API/docs/audio/echo.wav', temperature: 0.5, }, { gateway: { id: 'default' }, } ) console.log(response) ``` Explain Code Input / Output JSON * [ Input ](#tab-panel-178) * [ Output ](#tab-panel-179) ``` { "file": "https://cdn.openai.com/API/docs/audio/echo.wav", "temperature": 0.5 } ``` ``` { "text": "In the heart of the city, there is a large park where people go to relax and enjoy nature. The park has a beautiful pond with ducks and swans." } ``` ## Parameters * [ Input ](#tab-panel-182) * [ Output ](#tab-panel-183) file `string`requiredThe audio file as a URL or data URI (data:audio/...;base64,...). Supported formats: flac, mp3, mp4, mpeg, mpga, m4a, ogg, wav, webm. 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. temperature `number`requireddefault: 0minimum: 0maximum: 1The 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. text `string`The transcribed text. ## API Schemas * [ Input ](#tab-panel-180) * [ Output ](#tab-panel-181) ``` { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "file": { "description": "The audio file as a URL or data URI (data:audio/...;base64,...). Supported formats: flac, mp3, mp4, mpeg, mpga, m4a, ogg, wav, webm.", "type": "string" }, "language": { "description": "The language of the input audio. Supplying the input language in ISO-639-1 format will improve accuracy and latency.", "type": "string" }, "prompt": { "description": "An optional text to guide the model's style or continue a previous audio segment. The prompt should match the audio language.", "type": "string" }, "temperature": { "description": "The sampling temperature, between 0 and 1. Higher values like 0.8 will make the output more random, while lower values like 0.2 will make it more focused and deterministic.", "default": 0, "type": "number", "minimum": 0, "maximum": 1 } }, "required": [ "file", "temperature" ], "additionalProperties": false } ``` Explain Code ``` { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "text": { "description": "The transcribed text.", "type": "string" } }, "required": [ "text" ], "additionalProperties": false } ``` Explain Code ```json {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/ai/","name":"AI"}},{"@type":"ListItem","position":3,"item":{"@id":"/ai/models/","name":"Models"}}]} ```