OpenAI (TTS)

1. Overview

The industry's largest language model. Generates audio based on the input text.

Available model list:

• tts-1

• tts-1-hd

2. Request Description

• Request method: POST

• Request address: https://gateway.theturbo.ai/v1/audio/speech

3. Input Parameters

3.1 Header Parameters

Parameter Name	Type	Required	Description	Example Value
Content-Type	string	Yes	Set the request header type, which must be application/json	application/json
Authorization	string	Yes	API_KEY required for authentication. Format: Bearer $YOUR_API_KEY	Bearer $YOUR_API_KEY

3.2 Body Parameters (application/json)

Parameter Name	Type	Required	Description	Example (Default Value)
model	string	Yes	Model ID to use. See available models listed in the Overview for details, such as tts-1.	tts-1
input	string	Yes	The text used to generate audio, with a maximum length of 4,096 characters.	hello, I'm Xiaoming
voice	string	Yes	The type of voice used to generate the audio. Support alloy, ash, coral, echo, fable, onyx, nova, sage, and shimmer. (Official Docs)	alloy
response_format	string	No	The output format of the audio. Support mp3, opus, aac, flac, wav, pcm.	mp3
speed	number	No	The speech rate for generating the audio. The optional range is from 0.25 to 4.0. 1.0

4. Request Example

POST /v1/audio/speech
Content-Type: application/json
Authorization: Bearer $YOUR_API_KEY

{
	"model": "tts-1",
	"input": "Hello, I'm Xiaoming",
	"voice": "alloy"
}

5. Response Example

HTTP/1.1 200 OK
Content-Type: audio/mpeg

Audio binary file