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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.

What is Cartesia Sonic-3.6?

Sonic is a sophisticated text-to-speech technology crafted specifically for real-time voice applications, boasting an impressive response time of under 90 milliseconds and offering seamless support for more than 40 languages. Its main goal is to enable smooth voice interactions that are marked by a tone adaptable to various contexts, consistent pacing, and speech that mimics the natural rhythm of dialogue. Sonic skillfully detects emotional subtleties in transcripts, altering its delivery to match, and it can incorporate non-verbal elements, such as laughter, directly into the audio output. Remaining true to the original text, this model produces clear sound across multiple languages and voice selections while effectively handling alphanumeric information like order numbers, phone numbers, email addresses, and IDs without any need for prior data processing. Its context-sensitive pronunciation guarantees that heteronyms are spoken accurately in relation to surrounding words, and the inclusion of customizable pronunciation dictionaries allows teams to specify how particular names and industry jargon should be articulated. This extensive methodology not only elevates the quality of interactions but also fine-tunes the user experience to accommodate a wide range of communication requirements, ultimately fostering more engaging and effective conversations. In doing so, Sonic redefines the possibilities of voice technology, making it an invaluable tool for enhancing digital communication.

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

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

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

Pricing Information

$5 per month
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

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

Company Facts

Organization Name

Cartesia

Date Founded

2023

Company Location

United States

Company Website

www.cartesia.ai/sonic

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

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