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What is Gemini 3.8 Flash-Lite TTS?

Gemini 3.8 Flash-Lite TTS is Google’s efficiency-focused text-to-speech model for generating expressive audio at high volume. It is positioned for applications where scalability and cost efficiency are important, including dubbing, localization, automated content production, and conversational voice systems. The model gives users detailed control over speech characteristics such as tone, pacing, delivery, and expressive nuance. Creators and developers can direct individual lines using script instructions to produce performances ranging from straightforward narration to more expressive dialogue. Long-form generation is designed to maintain natural pacing, audio quality, and stable speaker characteristics over extended recordings such as podcasts and other continuous content. Gemini 3.8 Flash-Lite TTS also supports native two-speaker scene staging, allowing a single script to generate structured conversations with distinct speakers and natural turn-taking. Nonverbal performance cues including laughs, sighs, gasps, and conversational backchanneling can be incorporated to add realistic texture to generated speech. With support for more than 100 languages, the model can be used to create multilingual audio experiences and localized content for audiences across different regions. Google reports that Gemini 3.8 Flash-Lite TTS performs strongly in human preference evaluations across languages including Japanese, Brazilian Portuguese, Vietnamese, Modern Standard Arabic, Mexican Spanish, and Hindi. Generated audio from Gemini Audio models includes SynthID watermarking, providing an imperceptible signal that can help identify AI-generated speech. Gemini 3.8 Flash-Lite TTS is available through Google AI Studio and the Gemini API, is integrated into Google Vids, and is planned for enterprise API access through Gemini Enterprise.

What is Gemini 3.1 Flash TTS?

Gemini 3.1 Flash TTS showcases the latest innovations from Google in text-to-speech capabilities, focusing on delivering expressive, customizable, and scalable AI-driven speech solutions for developers and businesses. This technology is readily available through platforms such as Google AI Studio and Gemini Enterprise Agent Platform, placing a strong emphasis on user empowerment in audio creation, and allowing for the adjustment of delivery through natural language commands and an extensive set of over 200 audio tags that can manipulate aspects like pacing, tone, emotion, and style. It supports more than 70 languages, including various regional dialects, and offers a choice of 30 prebuilt voices, which enables the production of speech that can range from refined narrations to captivating conversational or artistic presentations. Developers can seamlessly embed specific guidance within their text inputs, which helps direct vocal expression while incorporating elements such as pacing, emotion, and pauses through a structured prompting mechanism that generates nuanced and high-quality audio output. This advanced functionality makes Gemini 3.1 Flash TTS particularly suited for practical implementations, encompassing applications in accessibility tools, gaming audio, and a wide array of other creative projects. Additionally, this versatility empowers users to tailor the technology effectively to satisfy the varying demands found across different sectors and industries.

Media

Media

Integrations Supported

Gemini
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Gemini 3.5 Pro
Gemini Enterprise Agent Platform
Gemini Live API
Google AI Studio
Google Vids
Gemini Enterprise
Gemini Notebook
SynthID

Integrations Supported

Gemini
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Gemini 3.5 Pro
Gemini Enterprise Agent Platform
Gemini Live API
Google AI Studio
Google Vids
Gemini Enterprise
Gemini Notebook
SynthID

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Google

Date Founded

1998

Company Location

United States

Company Website

google.com

Company Facts

Organization Name

Google

Date Founded

1998

Company Location

United States

Company Website

blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-1-flash-tts/

Categories and Features

Text to Speech

API
Adjust Speaking Rate / Pitch
Audio Optimization
Custom Lexicons
Different Voice Choices
Multi-Language Support
Synchronize Speech

Categories and Features

Text to Speech

API
Adjust Speaking Rate / Pitch
Audio Optimization
Custom Lexicons
Different Voice Choices
Multi-Language Support
Synchronize Speech

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