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Average Ratings 0 Ratings
Description
The Cartesia Sonic-3 is an innovative real-time text-to-speech (TTS) model that produces highly realistic and expressive vocal outputs with minimal delay, allowing AI systems to engage in conversations that resemble human interactions. Utilizing a sophisticated state space model architecture, this technology provides superior speech quality while enabling audio generation to commence in as little as 40 to 100 milliseconds, creating a fluid conversational experience without noticeable pauses. Tailored specifically for conversational AI applications, Sonic serves as the vocal component for AI agents, transforming written text into speech that conveys a range of emotions, including excitement, empathy, and even laughter. With support for over 40 languages and the ability to localize accents, developers can create applications that maintain exceptional quality and accessibility for users around the globe. This versatility ensures that Sonic-3 not only meets the needs of various markets but also enhances user engagement through its lifelike voice capabilities.
Description
Gemini 3.8 Flash TTS is a generative text-to-speech model from Google designed for expressive voice creation, character design, dialogue direction, and multilingual audio production. Instead of limiting users to fixed voice presets, the model can create entirely new vocal identities from natural-language descriptions. Developers and creators can specify attributes such as accent, role, timbre, speaking style, pacing, and other voice characteristics across more than 100 languages and dialects. The model also offers access to more than 2,000 production-ready voices and supports voice replication from a short authorized audio sample. Performance controls allow users to direct individual lines with stage directions, pacing instructions, dialect shifts, emotional cues, and conversational backchanneling. Gemini 3.8 Flash TTS supports long-form generation while maintaining voice consistency, making it suitable for podcasts, audiobooks, localization, and other extended audio projects. Native two-speaker scene support lets users create multi-turn conversations from a single script while preserving distinct voices and natural turn-taking. Google includes consent verification, SynthID watermarking, and C2PA credentials to provide greater transparency and safeguards around generated and replicated voices. Gemini 3.8 Flash TTS can be used through Google AI Studio and the Gemini API and is intended for developers, creators, enterprises, media companies, and teams building expressive speech experiences.
API Access
Has API
Yes
API Access
Has API
Yes
Integrations
Gemini
No
Gemini 3.1 Flash-Lite
No
Gemini 3.1 Pro
No
Gemini Enterprise
No
Gemini Enterprise Agent Platform
No
Gemini Live API
No
Gemini Notebook
No
Google AI Studio
No
Google Vids
No
SynthID
No
Integrations
Gemini
Yes
Gemini 3.1 Flash-Lite
Yes
Gemini 3.1 Pro
Yes
Gemini Enterprise
Yes
Gemini Enterprise Agent Platform
Yes
Gemini Live API
Yes
Gemini Notebook
Yes
Google AI Studio
Yes
Google Vids
Yes
SynthID
Yes
Pricing Details
$4 per month
Free Trial
Yes
Free Version
Yes
Pricing Details
No price information available.
Free Trial
No
Free Version
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
Yes
Live Training (Online)
Yes
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Cartesia
Founded
2023
Country
United States
Website
cartesia.ai/sonic
Vendor Details
Company Name
Founded
1998
Country
United States
Website
google.com
Product Features
Product Features
Text to Speech
API
No
Adjust Speaking Rate / Pitch
No
Audio Optimization
No
Custom Lexicons
No
Different Voice Choices
No
Multi-Language Support
No
Synchronize Speech
No