Audio

Create a speech

POST /openai/v1/audio/speech

Creates a speech from the supplied request.

要求本文

The request body.

Content-Type: application/json

model string | enum 必須

One of the available TTS models: tts-1, tts-1-hd, gpt-4o-mini-tts, or gpt-4o-mini-tts-2025-12-15.

次のいずれか:

string

enum

tts-1tts-1-hdgpt-4o-mini-ttsgpt-4o-mini-tts-2025-12-15

input string 必須

The text to generate audio for. The maximum length is 4096 characters.

instructions string

Control the voice of your generated audio with additional instructions. Does not work with tts-1 or tts-1-hd.

voice OpenAI.VoiceIdsShared | enum | object 必須

The voice to use when generating the audio. Supported built-in voices are alloy, ash, ballad, coral, echo, fable, onyx, nova, sage, shimmer, verse, marin, and cedar. You may also provide a custom voice object with an id, for example { "id": "voice_1234" }. Previews of the voices are available in the Text to speech guide. Custom voices must be created from audio samples. Voices created from text prompts are supported only in Live.

次のいずれか:

次のいずれか:

string

enum

alloyashballadcoralechosageshimmerversemarincedar

enum

fableonyxnova

id string 必須

response_format enum

The format to audio in. Supported formats are mp3, opus, aac, flac, wav, and pcm.

mp3opusaacflacwavpcm

speed number

stream_format enum

The format to stream the audio in. Supported formats are sse and audio. sse is not supported for tts-1 or tts-1-hd.

sseaudio

応答

The request has succeeded.

ヘッダー

Transfer-Encoding string

The TransferEncoding header.

本文

Content-Type: application/octet-stream

要求

curl https://api.openai.com/v1/audio/speech \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini-tts",
    "input": "The quick brown fox jumped over the lazy dog.",
    "voice": "alloy"
  }' \
  --output speech.mp3

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ.get("OPENAI_API_KEY"),  # This is the default and can be omitted
)
speech = client.audio.speech.create(
    input="input",
    model="tts-1",
    voice="alloy",
)
print(speech)
content = speech.read()
print(content)

import fs from "fs";
import path from "path";
import OpenAI from "openai";

const openai = new OpenAI();

const speechFile = path.resolve("./speech.mp3");

async function main() {
  const mp3 = await openai.audio.speech.create({
    model: "gpt-4o-mini-tts",
    voice: "alloy",
    input: "Today is a wonderful day to build something people love!",
  });
  console.log(speechFile);
  const buffer = Buffer.from(await mp3.arrayBuffer());
  await fs.promises.writeFile(speechFile, buffer);
}
main();

using System;
using System.IO;

using OpenAI.Audio;

AudioClient client = new(
    model: "gpt-4o-mini-tts",
    apiKey: Environment.GetEnvironmentVariable("OPENAI_API_KEY")
);

BinaryData speech = client.GenerateSpeech(
    text: "The quick brown fox jumped over the lazy dog.",
    voice: GeneratedSpeechVoice.Alloy
);

using FileStream stream = File.OpenWrite("speech.mp3");
speech.ToStream().CopyTo(stream);

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: process.env['OPENAI_API_KEY'], // This is the default and can be omitted
});

const speech = await client.audio.speech.create({
  input: 'input',
  model: 'tts-1',
  voice: 'alloy',
});

console.log(speech);

const content = await speech.blob();
console.log(content);

package main

import (
    "context"
    "fmt"

    "github.com/openai/openai-go"
    "github.com/openai/openai-go/option"
)

func main() {
    client := openai.NewClient(
        option.WithAPIKey("My API Key"),
    )
    speech, err := client.Audio.Speech.New(context.TODO(), openai.AudioSpeechNewParams{
        Input: "input",
        Model: openai.SpeechModelTTS1,
        Voice: openai.AudioSpeechNewParamsVoiceUnion{
            OfAudioSpeechNewsVoiceString2: openai.String("alloy"),
        },
    })
    if err != nil {
        panic(err.Error())
    }
    fmt.Printf("%+v
", speech)
}

package com.openai.example;

import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.core.http.HttpResponse;
import com.openai.models.audio.speech.SpeechCreateParams;
import com.openai.models.audio.speech.SpeechModel;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        OpenAIClient client = OpenAIOkHttpClient.fromEnv();

        SpeechCreateParams params = SpeechCreateParams.builder()
            .input("input")
            .model(SpeechModel.TTS_1)
            .voice(SpeechCreateParams.Voice.UnionMember1.ALLOY)
            .build();
        HttpResponse speech = client.audio().speech().create(params);
    }
}

require "openai"

openai = OpenAI::Client.new(api_key: "My API Key")

speech = openai.audio.speech.create(input: "input", model: :"tts-1", voice: :alloy)

puts(speech)

要求

curl https://api.openai.com/v1/audio/speech \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini-tts",
    "input": "The quick brown fox jumped over the lazy dog.",
    "voice": "alloy",
    "stream_format": "sse"
  }'

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: process.env['OPENAI_API_KEY'], // This is the default and can be omitted
});

const speech = await client.audio.speech.create({
  input: 'input',
  model: 'tts-1',
  voice: 'alloy',
});

console.log(speech);

const content = await speech.blob();
console.log(content);

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ.get("OPENAI_API_KEY"),  # This is the default and can be omitted
)
speech = client.audio.speech.create(
    input="input",
    model="tts-1",
    voice="alloy",
)
print(speech)
content = speech.read()
print(content)

package main

import (
    "context"
    "fmt"

    "github.com/openai/openai-go"
    "github.com/openai/openai-go/option"
)

func main() {
    client := openai.NewClient(
        option.WithAPIKey("My API Key"),
    )
    speech, err := client.Audio.Speech.New(context.TODO(), openai.AudioSpeechNewParams{
        Input: "input",
        Model: openai.SpeechModelTTS1,
        Voice: openai.AudioSpeechNewParamsVoiceUnion{
            OfAudioSpeechNewsVoiceString2: openai.String("alloy"),
        },
    })
    if err != nil {
        panic(err.Error())
    }
    fmt.Printf("%+v
", speech)
}

package com.openai.example;

import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.core.http.HttpResponse;
import com.openai.models.audio.speech.SpeechCreateParams;
import com.openai.models.audio.speech.SpeechModel;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        OpenAIClient client = OpenAIOkHttpClient.fromEnv();

        SpeechCreateParams params = SpeechCreateParams.builder()
            .input("input")
            .model(SpeechModel.TTS_1)
            .voice(SpeechCreateParams.Voice.UnionMember1.ALLOY)
            .build();
        HttpResponse speech = client.audio().speech().create(params);
    }
}

require "openai"

openai = OpenAI::Client.new(api_key: "My API Key")

speech = openai.audio.speech.create(input: "input", model: :"tts-1", voice: :alloy)

puts(speech)