Ratings and Reviews 0 Ratings

Total
ease
features
design
support

This software has no reviews. Be the first to write a review.

Write a Review

Ratings and Reviews 0 Ratings

Total
ease
features
design
support

This software has no reviews. Be the first to write a review.

Write a Review

Alternatives to Consider

  • LALAL.AI Reviews & Ratings
    5,230 Ratings
    Company Website
  • Google Cloud Speech-to-Text Reviews & Ratings
    366 Ratings
    Company Website
  • Community Phone Reviews & Ratings
    1,404 Ratings
    Company Website
  • DialerAI Reviews & Ratings
    5 Ratings
    Company Website
  • CEX.IO Reviews & Ratings
    29 Ratings
    Company Website
  • QEval Reviews & Ratings
    30 Ratings
    Company Website
  • Datagate Telecom Billing Reviews & Ratings
    12 Ratings
    Company Website
  • Code-Cube.io Reviews & Ratings
    7 Ratings
    Company Website
  • Google AI Studio Reviews & Ratings
    30 Ratings
    Company Website
  • TelemetryTV Reviews & Ratings
    279 Ratings
    Company Website

What is Grok Voice Think Fast 2.0?

Grok Voice Think Fast 2.0 is xAI’s flagship voice model for creating real-time AI assistants, phone agents, and interactive voice applications. The model is designed to stream both audio and text bidirectionally over WebSocket for low-friction conversational experiences. Developers can use it to build systems that listen, respond, reason, and adapt during live voice interactions. Grok Voice Think Fast 2.0 supports configurable system instructions so teams can shape behavior, persona, policies, and task handling. It also allows developers to choose high reasoning effort or no reasoning effort depending on latency, cost, and complexity requirements. The model supports built-in voices, custom voices, playback speed controls, automatic server-side voice activity detection, silence duration settings, idle re-engagement, and session resumption after temporary disconnects. It accepts PCM, G.711 μ-law, G.711 A-law, and Opus audio through JSON frames or raw binary frames. Configurable PCM sample rates let teams support use cases ranging from telephone-quality voice calls to 48 kHz audio workflows. Grok Voice Think Fast 2.0 supports more than 20 languages with native-quality accents, automatic language detection, natural responses in the speaker’s language, and seamless code-switching. Developers can provide language hints and up to 100 key terms to improve recognition of regional speech, names, products, codes, addresses, and specialized terminology. By combining real-time audio streaming, configurable reasoning, voice controls, multilingual support, transcription tuning, and pronunciation replacement, Grok Voice Think Fast 2.0 gives developers a flexible foundation for advanced voice AI products.

What is Grok Text to Speech (TTS)?

Grok Text to Speech (TTS) is a standalone audio API designed to empower developers in swiftly generating natural and engaging speech from text. Leveraging the same technology that underpins Grok Voice, Tesla vehicles, and Starlink services, this API facilitates the seamless integration of high-quality voice synthesis across a diverse range of applications, such as digital assistants, voice agents, podcasts, accessibility tools, and customer interaction systems. With Grok TTS, users can transform extensive written content into audio using a REST API or generate speech in real-time via a WebSocket API, providing the versatility required for both batch processing and dynamic conversational tasks. The API focuses on delivering expressive and nuanced speech, instead of flat narration, by offering refined control through intuitive inline and wrapping speech tags. By utilizing these tags, developers can add emotional depth and natural prosody to the speech output, ensuring a more authentic delivery without the need for cumbersome markup. This capability positions Grok TTS as a critical asset for enhancing user interaction and fostering more engaging experiences. Furthermore, its ease of use and accessibility make it an attractive choice for developers looking to improve the auditory aspects of their applications.

Media

Media

Integrations Supported

Grok
Grok Voice Agent
Grok Voice Agent Builder
Vercel AI Gateway

Integrations Supported

Grok
Grok Voice Agent
Grok Voice Agent Builder
Vercel AI Gateway

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

Pricing Information

Pricing not provided
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

SpaceXAI

Date Founded

2023

Company Location

United States

Company Website

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

Company Facts

Organization Name

SpaceXAI

Date Founded

2023

Company Location

United States

Company Website

x.ai/news/grok-stt-and-tts-apis

Categories and Features

Popular Alternatives

Popular Alternatives

GPT-Live-1 Reviews & Ratings

GPT-Live-1

OpenAI
GPT-Live Reviews & Ratings

GPT-Live

OpenAI