Grok Voice 3.0

Grok Voice 3.0

SpaceXSI
Higgs Realtime

Higgs Realtime

Boson AI
+
+

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About

Grok Voice 3.0 is a speech-to-speech model offered through the Grok Voice Agent API for developers building real-time voice applications. It accepts audio and text and returns spoken audio or text through a WebSocket session, supporting conversational turn-taking, interruptions, and function calling. Developers can connect the model to custom functions and server-side tools, including web search, X search, collections, and remote MCP servers. The API is intended for interactive voice agents such as customer-support and service-call experiences, and is also used for voice interactions in Tesla vehicles and Grok Bot. Billing is usage-based, with audio charged per minute and text input events billed separately. The API documentation includes setup instructions and examples for Python and JavaScript clients.

About

Higgs Realtime is a production-quality, real-time speech-to-speech model and API built for natural, continuous conversation. It is an end-to-end, instruction-tuned, audio-native model that can understand audio, text, or both and generate high-quality responses, while also functioning as a text LLM when given text alone. Designed for live voice agents, it follows conversations, handles interruptions, adapts when requests change mid-sentence, and carries multi-step workflows through to completion. The model is trained specifically for voice-agent reflexes such as natural turn-taking, conversational cadence, tone adaptation, spoken tool preambles, multi-turn state tracking, and robust instruction following through changing requests. Semantic turn detection helps distinguish a completed turn from a pause, while multilingual and code-switched understanding supports more than 100 languages without per-language setup.

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

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

Audience

Developers building real-time voice applications, phone agents, interactive voice systems, and customer-support experiences.

Audience

Product teams, developers, and organizations building voice agents seeking to create low-latency, multilingual, interruption-aware conversational AI that can use tools and complete real-time workflows

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$0.08/min
Audio is $0.08 per minute. Text-only input events are $0.004 each. Server-VAD sessions are billed for the full session duration; push-to-talk sessions are billed for audio sent and received.
Free Version Not Supported
Free Trial Supported

Pricing

$0.0023 per minute
Free Version Not Supported
Free Trial Not Supported

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:

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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 Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

SpaceXSI
Founded: 2023
United States
x.ai/api/voice

Company Information

Boson AI
Founded: 2023
United States
staging.boson.ai/blog/higgs-realtime

Alternatives

No Alternatives

Alternatives

Categories

AI Voice Models Supported

Categories

AI Models Supported

Integrations

Boson AI Not Supported
Grok Supported
Grok Bot Supported
Grok Voice Agent Supported
Grok Voice Agent Builder Supported
Model Context Protocol (MCP) Supported
Twilio Supported

Integrations

Boson AI Supported
Grok Not Supported
Grok Bot Not Supported
Grok Voice Agent Not Supported
Grok Voice Agent Builder Not Supported
Model Context Protocol (MCP) Not Supported
Twilio Not Supported
Claim Grok Voice 3.0 and update features and information
Claim Grok Voice 3.0 and update features and information
Claim Higgs Realtime and update features and information
Claim Higgs Realtime and update features and information