Grok Voice Think Fast 2.0SpaceXSI
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Related Products
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About
Decibri is a Rust-based audio library for developers building real-time speech, voice-agent, and audio applications. It provides microphone capture, speaker playback, PCM streaming, audio-file processing, and a command-line interface through Python, Node.js, Rust, and browser APIs. Built-in features include voice activity detection, acoustic echo cancellation, and optional audio conditioning such as denoising, filtering, automatic gain control, and limiting. Developers can stream captured audio to cloud or local speech-to-text services and play generated speech through integrated audio output. Use cases include voice assistants, conversational agents, transcription, wake-word and keyword detection, interactive robotics, full-duplex speech, audio pipelines, and edge devices. Prebuilt native packages support Windows, macOS, and Linux; Python and Node.js packages require no additional build tools. The browser implementation provides capture, energy-based speech detection, and playback.
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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.
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Supported
Cloud
Not Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Software developers, AI engineers, machine-learning teams, and robotics developers building voice agents, speech-enabled applications, and real-time audio pipelines.
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Audience
Developers seeking to build low-latency voice agents that hold real-time speech conversations and use tools during interactions
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and VideosNo images available
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Screenshots and Videos |
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Pricing
$0
The core audio library is free under Apache-2.0. Fees for cloud speech-service providers are separate.
Free Version
Supported
Free Trial
Not Supported
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationDecibri
Founded: 2008
Australia
decibri.com
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Company InformationSpaceXSI
Founded: 2023
United States
docs.x.ai/developers/model-capabilities/audio/speech-to-speech
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AlternativesNo Alternatives
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Alternatives |
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Categories |
Categories |
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Integrations
Amazon Transcribe
Supported
AssemblyAI
Supported
Azure AI Speech
Supported
Deepgram
Supported
Google Cloud Speech-to-Text
Supported
Grok
Not Supported
Grok Voice Agent
Not Supported
Grok Voice Agent Builder
Not Supported
OpenAI Realtime API
Supported
Vercel AI Gateway
Not Supported
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Integrations
Amazon Transcribe
Not Supported
AssemblyAI
Not Supported
Azure AI Speech
Not Supported
Deepgram
Not Supported
Google Cloud Speech-to-Text
Not Supported
Grok
Supported
Grok Voice Agent
Supported
Grok Voice Agent Builder
Supported
OpenAI Realtime API
Not Supported
Vercel AI Gateway
Supported
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