Using Gemini 3.1 Flash TTS Preview on Google AI Studio

Quick Start

1. 1
   Create an account at Google AI Studio and generate an API key.
2. 2
   Use the Google AI Studio SDK or REST API to call gemini-3.1-flash-tts-preview — see the documentation for request format.
3. 3
   You'll be billed $1.00/1M input. See full pricing.

Code Examples

import os
from google import genai

client = genai.Client(api_key=os.environ["GOOGLE_API_KEY"])
response = client.models.generate_content(
    model="gemini-3.1-flash-tts-preview",
    contents="Hello"
)
print(response.text)

About Google AI Studio

Google AI Studio is a model prototyping environment and API access point for Gemini models, offering an inference playground for developers to test and build AI applications.

Pricing on Google AI Studio

Capabilities

About Gemini 3.1 Flash TTS Preview

Google's cost-efficient expressive text-to-speech model, released April 15, 2026. Supports 70+ languages, native multi-speaker dialogue, and 200+ audio style tags for precise delivery control. SynthID watermarking included. Achieves Elo 1,211 on the Artificial Analysis TTS leaderboard. Priced at $1.00/M input tokens and $20.00/M audio output tokens. API ID: gemini-3.1-flash-tts-preview.