xAI releases Grok Voice 3.0 for voice agents
xAI calls it the most intelligent speech-to-speech model and cites a top score of 86.9 on Artificial Analysis's Speech-to-Speech Index, dated October 13, 2026. Those figures come from xAI's own announcement; this edition has not checked them against Artificial Analysis directly, and no other independent rerun is recorded here. The announcement does not show call-resolution results from customers' own deployments.
What was claimed?
xAI announced Grok Voice 3.0, a speech-to-speech model, available in its Voice Agent API at $0.08 per minute ($4.80 per hour), the same price as Grok Voice 2.0. xAI says agents using its latest-version alias were switched over automatically, and that the model already handles millions of conversations a day across Tesla and SpaceX.
What does the evidence support?
Company claim, independent confirmation unresolved
Voice agents for support calls are one of the most direct commercial uses of these models. A new model at the old per-minute price lowers the cost of capability for anyone already building on the API, and the automatic switch means existing deployments changed behaviour without opting in.
What are the limits?
xAI calls it the most intelligent speech-to-speech model and cites a top score of 86.9 on Artificial Analysis's Speech-to-Speech Index, dated October 13, 2026. Those figures come from xAI's own announcement; this edition has not checked them against Artificial Analysis directly, and no other independent rerun is recorded here. The announcement does not show call-resolution results from customers' own deployments.
Claim or evidence date: 2026-10-14. Last verified: .
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