+
+

Related Products

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

About

Grok Voice Think Fast 2.0 is xAI’s flagship voice model for building real-time assistants, phone agents, and interactive voice systems that stream audio and text bidirectionally over WebSocket. Developers can configure system instructions, high or no reasoning effort, built-in or custom voices, automatic server-side voice activity detection, silence duration, idle re-engagement, playback speed, and session resumption after temporary disconnects. It accepts PCM, G.711 μ-law, G.711 A-law, and Opus audio through JSON or raw binary frames, with configurable PCM sample rates from telephone quality to 48 kHz. It supports more than 20 languages with native-quality accents, automatic language detection, natural responses in the speaker’s language, and seamless code-switching. Language hints and up to 100 key terms improve transcription of regional speech, names, products, codes, addresses, and specialized terminology, while pronunciation replacements correct spoken output.

About

GPT-Realtime is OpenAI’s most advanced, production-ready speech-to-speech model, now accessible through the fully available Realtime API. It delivers remarkably natural, expressive audio with fine-grained control over tone, pace, and accent. The model can comprehend nuanced human audio, including laughter, switch languages mid-sentence, and accurately process alphanumeric details like phone numbers across multiple languages. It significantly improves reasoning and instruction-following (achieving 82.8% on the BigBench Audio benchmark and 30.5% on MultiChallenge) and boasts enhanced function calling, now more reliable, timely, and accurate (scoring 66.5% on ComplexFuncBench). The model supports asynchronous tool invocation so conversations remain fluid even during long-running calls. The Realtime API also offers innovative capabilities such as image input support, SIP phone network integration, remote MCP server connection, and reusable conversation prompts.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers, AI voice teams, contact center platforms, phone agent builders, customer support teams, product teams, enterprise automation teams, and conversational AI companies that need real-time voice assistants, bidirectional WebSocket audio, multilingual speech, voice activity detection, session resumption, custom voices, transcription tuning, and pronunciation control

Audience

Enterprises requiring a solution to build sophisticated, natural-sounding voice agents

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

$20 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

SpaceXAI
Founded: 2023
United States
docs.x.ai/developers/model-capabilities/audio/speech-to-speech

Company Information

OpenAI
Founded: 2015
United States
openai.com/index/introducing-gpt-realtime/

Alternatives

Alternatives

Voxtral TTS

Voxtral TTS

Mistral AI

Categories

Categories

Integrations

Azure Voice Live API
ChatGPT
GPT-Realtime-1.5
GPT-Realtime-2
GPT-Realtime-2.1
GPT-Realtime-Translate
GPT‑Realtime‑Whisper
Grok
Grok Voice Agent
Grok Voice Agent Builder
Microsoft Foundry Models
OpenAI
SmartCallz
Vercel AI Gateway

Integrations

Azure Voice Live API
ChatGPT
GPT-Realtime-1.5
GPT-Realtime-2
GPT-Realtime-2.1
GPT-Realtime-Translate
GPT‑Realtime‑Whisper
Grok
Grok Voice Agent
Grok Voice Agent Builder
Microsoft Foundry Models
OpenAI
SmartCallz
Vercel AI Gateway
Claim Grok Voice Think Fast 2.0 and update features and information
Claim Grok Voice Think Fast 2.0 and update features and information
Claim gpt-realtime and update features and information
Claim gpt-realtime and update features and information