OpenAI API exposes GPT-4o Mini TTS through model ID gpt-4o-mini-tts. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.
Last refreshed 2026-06-07. Next refresh: weekly.
Quick Start
- 1
- 2Use the OpenAI API SDK or REST API to call
gpt-4o-mini-tts— see the documentation for request format. - 3
Code Examples
pip install openaiOPENAI_API_KEYgpt-4o-mini-ttsUse the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
model="gpt-4o-mini-tts",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Pricing on OpenAI API
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.60 |
Capabilities
About GPT-4o Mini TTS
GPT-4o Mini TTS is OpenAI's instructable text-to-speech model built on GPT-4o mini, released March 20, 2025. Supports natural language instructions to control tone, style, pacing, and emotion (instructable TTS) — the model follows conversational prompts to adjust delivery rather than relying on static voice presets. OpenAI's recommended cost-efficient TTS for production. Input: text tokens + instructions at $0.60/1M tokens. Output: audio tokens at $12.00/1M tokens. Accepts up to 2,000 input tokens. API ID: gpt-4o-mini-tts.