GPT-4o Mini TTS on OpenAI API

Name: GPT-4o Mini TTS on OpenAI API
Brand: OpenAI
Price: 0.60 USD

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Last refreshed 2026-06-07. Next refresh: weekly.

Why use GPT-4o Mini TTS on OpenAI API?

OpenAI API offers GPT-4o Mini TTS with pay-as-you-go pricing at $0.60/1M input tokens. OpenAI is a leading AI research and deployment company dedicated to developing safe and beneficial artificial general intelligence (AGI) for humanity.

Input / 1M

$0.60

Output / 1M

Cache

Not sourced

Batch

Not sourced

Setup recipe

Python + curl

Install

pip install openai

Auth

export OPENAI_API_KEY=...

Call

import os
from openai import OpenAI
client = OpenAI()  # reads OPENAI_API_KEY from env
response = client.chat.completions.create(

Model ID

gpt-4o-mini-tts

Request example

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)

Gotchas

Use the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
The examples expect OPENAI_API_KEY; rename it only if your application config maps the new variable.

Pricing

Type	Price (per 1M)
Input tokens	$0.60

Capabilities

MultimodalAudio

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.