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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-Lite TTS is an expressive text-to-speech model from Google optimized for high-volume, cost-efficient speech generation. It is designed for workloads such as global dubbing, large-scale audio content production, localization, and conversational voice agents. Users can control characteristics such as tone, pacing, emphasis, and expressive nuance to shape how generated speech is delivered. Line-by-line direction allows scripts to include performance instructions and natural speech cues rather than producing uniformly spoken narration. The model supports long-form generation and is designed to preserve voice quality, natural pacing, and character consistency across extended audio. Native two-speaker staging allows developers and creators to generate multi-turn conversations while keeping speakers distinct and maintaining natural turn-taking. Scripted cues can introduce laughs, sighs, gasps, and listening responses such as “mhm” or “yeah” to make dialogue more conversational. Gemini 3.8 Flash-Lite TTS supports more than 100 languages and is designed for multilingual audio experiences at global scale, while generated Gemini Audio output includes SynthID watermarking for transparency. Developers can access the model through Google AI Studio and the Gemini API, with integration into Google Vids and planned API availability through Gemini Enterprise.
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