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Grok Voice 3.0 Overview

Speech-to-speech voice model for real-time customer support and voice assistants

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Grok Voice 3.0 is an AI Audio Generators tool. Speech-to-speech voice model for real-time customer support and voice assistants. Key features include Speech-to-Speech Processing, Customer Support Automation, and Full-Duplex Conversations. Best for customer service representatives, software developers and engineers and business consultants.

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About Grok Voice 3.0

Grok Voice 3.0 is a speech-to-speech AI model that powers real-time voice agents for customer support, in-car assistants, and phone systems. It ranks first on the Speech-to-Speech Index with sub-second latency and handles millions of daily conversations.

Key Features

Speech-to-Speech Processing.

Audio goes in and audio comes out without converting to text first, creating natural real-time conversations with sub-second response latency.

Customer Support Automation.

Resolves 70% of Starlink support calls without human help, handling 20,000 calls daily across multiple languages with high task completion rates.

Full-Duplex Conversations.

Handles interruptions, pauses, and natural turn-taking smoothly, scoring 97% on Full Duplex Bench for conversational flow.

Function Calling and Tools.

Can search uploaded documents, call custom APIs, and connect to external systems during live calls through WebSocket integration.

Multi-Language Support.

Works in over 25 languages with automatic language detection, natural accents, and seamless code-switching between languages mid-conversation.

Custom Voice Training.

Train custom voices from reference clips up to 120 seconds long, with voices working across both real-time and streaming text-to-speech endpoints.

Frequently Asked Questions

Grok Voice 3.0 costs $0.08 per minute or $4.80 per hour through the Voice Agent API. The price stayed the same as the previous version, and existing agents using grok-voice-latest were upgraded automatically at no extra cost.

Grok Voice 3.0 ranks first on the Speech-to-Speech Index at 86.9 and responds in under one second. It handles customer support calls better than previous versions, with 71.6% task completion on tau-Voice benchmark and 40% lower latency than competing models.

Grok Voice 3.0 handles millions of conversations daily in Tesla vehicles for hands-free tasks like checking calendars and answering emails. It also powers Starlink customer support, resolving about 70% of 20,000 daily calls without human help, and runs the voice mode for Grok Bot.

Yes, developers access Grok Voice 3.0 through a WebSocket API at the same endpoint as the previous version. The API is compatible with OpenAI's Realtime API format, supports phone calls over SIP with carriers like Twilio, and includes tools for function calling and document search.

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