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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.

Description

Grok Voice Think Fast 2.0 stands as the premier voice model from xAI, designed for the creation of real-time assistants, telephone agents, and interactive voice systems capable of bidirectional audio and text streaming via WebSocket. Developers have the flexibility to tailor various system parameters, such as the level of reasoning effort, the choice between built-in or custom voices, automatic voice activity detection on the server side, as well as configurable settings for silence duration, idle re-engagement, playback speed, and the ability to resume sessions following temporary disconnections. The model processes audio in several formats, including PCM, G.711 μ-law, G.711 A-law, and Opus, accepting both JSON and raw binary frames, with the adaptability to adjust PCM sample rates ranging from standard telephone quality to 48 kHz. It boasts support for over 20 languages with native-like accents, features automatic language recognition, generates natural responses in the user's preferred language, and facilitates smooth code-switching. Additionally, the inclusion of language hints and the ability to incorporate up to 100 key terms significantly enhance the accuracy of transcribing regional dialects, names, product identifiers, codes, addresses, and other specialized vocabulary, while pronunciation adjustments ensure the spoken output is correct and intelligible. This versatility makes Grok Voice Think Fast 2.0 an invaluable tool for developers looking to enhance user interaction through voice technology.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

Grok
Grok Voice Agent
Grok Voice Agent Builder
Grok Voice Think Fast 1.0
Grok Voice Think Fast 2.0
Vercel AI Gateway

Integrations

Grok
Grok Voice Agent
Grok Voice Agent Builder
Grok Voice Think Fast 1.0
Grok Voice Think Fast 2.0
Vercel AI Gateway

Pricing Details

$0.05 per minute
$0.05 per minute of connection time
Free Trial
Free Version

Pricing Details

No price information available.
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

SpaceXAI

Founded

2023

Country

United States

Website

x.ai

Vendor Details

Company Name

SpaceXAI

Founded

2023

Country

United States

Website

docs.x.ai/developers/model-capabilities/audio/speech-to-speech

Product Features

Alternatives

Alternatives