SpaceXAI releases Grok Voice 3.0 at the same $0.08 a minute, and says Starlink's support line already handles 20,000 calls a day with it

SpaceXAI, the AI unit of SpaceX formerly called xAI, announced Grok Voice 3.0 on 14 October. It is a speech-to-speech model for voice agents and is available in the company's Voice Agent API at $0.08 a minute, or $4.80 an hour, the same price as Grok Voice 2.0. The developer release notes say grok-voice-2.0 is deprecated and the grok-voice-latest alias now points to the new model.

The announcement shows a table credited to Artificial Analysis, dated 13 October, in which Grok Voice 3.0 scores 86.9 on the Speech-to-Speech Index, against 83.2 for OpenAI's GPT-Live-1, 82.6 for Google's Gemini 3.8 Live and 81.3 for Grok Voice 2.0. Its own chart for τ-Voice, a test of customer-support agents, shows a weaker result: 71.6% for Grok Voice 3.0 against 74.5% for GPT-Live-1.

The company makes usage claims for its own businesses. “Starlink call centers use Grok Voice to answer 20,000 customer calls every day across multiple languages,” the page says, adding: “Roughly 70% are resolved with no human in the loop”. It also says Grok Voice powers millions of conversations a day across Tesla and SpaceX. None of these figures has been checked independently.

Voice agents are where rival labs have been cutting prices; the Switchboard reported Qwen's and Google's voice moves in September. SpaceXAI chose to hold its price and raise quality instead.

• Confirmed Grok Voice 3.0 costs $0.08 a minute, the same as Grok Voice 2.0, and grok-voice-2.0 is deprecated. SpaceXAI and its release notes
• Claimed It scores 86.9 on Artificial Analysis's Speech-to-Speech Index against 83.2 for GPT-Live-1, but 71.6% against 74.5% on τ-Voice. SpaceXAI
• Claimed Starlink call centres answer 20,000 calls a day with Grok Voice, roughly 70% with no human involved. SpaceXAI