Using TTS-1 on OpenAI API

Quick Start

1. 1
   Create an account at OpenAI API and generate an API key.
2. 2
   Use the OpenAI API SDK or REST API to call tts-1 — see the documentation for request format.
3. 3
   You'll be billed $15.00/1M input. See full pricing.

Code Examples

import os
from openai import OpenAI

client = OpenAI()  # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
    model="tts-1",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on OpenAI API

Capabilities

About TTS-1

TTS-1 is OpenAI's text-to-speech model optimized for real-time, low-latency applications, released at DevDay November 2023. Accepts text input up to 4,096 characters and outputs audio in MP3, OPUS, AAC, FLAC, WAV, or PCM. Offers 6 preset voices (alloy, echo, fable, onyx, nova, shimmer). Lower output quality than TTS-1 HD but faster. Priced at $15.00/1M characters. API ID: tts-1.