Model & Plan Comparisons
Grok Voice 3.0 tops Artificial Analysis's voice index, at the same $0.08 a minute
SpaceX Super Intelligence's Grok Voice 3.0 ranks first on Artificial Analysis's Speech-to-Speech Index at 86.9, at the same $0.08 a minute as Grok Voice 2.0.
Littlewolf Labs
SpaceX Super Intelligence released Grok Voice 3.0 today, the speech-to-speech model behind voice in Grok Bot, Grok in Tesla cars, and Starlink support calls. In Artificial Analysis's testing it ranks first on the Speech-to-Speech Index with 86.9, ahead of GPT-Live-1 (Astra, Medium) at 83.2 and Gemini 3.8 Live at 82.6. Caveat from SpaceXSI's own chart: on τ-Voice, the simulated support-call test, it scores 71.6% to GPT-Live-1's 74.5%, though SpaceXSI says it answers with 40% lower latency. The 94.8% "task success" figure comes from a different test, so it doesn't mean 95% of real calls get resolved.
What it costs
$0.08/min ($4.80/hour) in the Voice Agent API, same as Grok Voice 2.0. Apps on grok-voice-latest were switched automatically.
Should you switch
Building a voice agent, test now since price didn't change. If you just talk to Grok in the app or car, you already have it.
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