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Average Ratings 0 Ratings

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ease
features
design
support

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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

The Grok Voice Agent API allows developers to create advanced voice agents with industry-leading speed and intelligence. Built entirely in-house by xAI, the voice stack includes custom models for audio detection, tokenization, and speech generation. This deep control enables rapid performance improvements and ultra-low latency responses. Grok Voice Agents support dozens of languages with native-level fluency and can switch languages mid-conversation. The API consistently outperforms competing voice models in human evaluations for pronunciation and prosody. Real-time tool calling and live search across X and the web are supported. Developers can integrate custom tools to enable dynamic task execution. The API follows the OpenAI Realtime specification for easy adoption. Pricing is a flat per-minute rate, making costs predictable at scale. The Grok Voice Agent API is designed for production-ready voice applications.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Grok No 
Grok Bot No 
Grok Voice 3.0 No 
Grok Voice Think Fast 1.0 No 
Grok Voice Think Fast 2.0 No 

Integrations

Grok Yes 
Grok Bot Yes 
Grok Voice 3.0 Yes 
Grok Voice Think Fast 1.0 Yes 
Grok Voice Think Fast 2.0 Yes 

Pricing Details

$4 per month
Free Trial Yes 
Free Version Yes 

Pricing Details

$0.05 per minute
$0.05 per minute of connection time
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

SpaceXSI

Founded

2023

Country

United States

Website

x.ai

Product Features

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