xAI Grok Voice 3.0 Ships at $0.08/Min, Tops Index at 86.9

xAI released Grok Voice 3.0 on October 14 at $0.08 per minute, holding the price flat against the prior version while claiming the top slot on Artificial Analysis's Speech-to-Speech Index at 86.9. The company's launch post puts the model at 97% on Full Duplex Bench, 71.6% on τ-Voice and 74% on EVA-Bench, with sub-second response latency it describes as 40% lower than GPT-Live-1 (Astra).

The deployment story is where xAI is pushing hardest. The company says the model already handles millions of daily conversations through Tesla's in-car assistant and Starlink's support line, with Starlink alone taking roughly 20,000 customer calls a day and resolving about 70% of them without a human. Sales calls, by xAI's own figure, convert at 25%.

The one outside voice carried in the launch is from ServiceNow. "Grok Voice 3.0 sets a new Pareto frontier on EVA-Bench," said Nitin Aggarwal, ServiceNow's Senior Director of Product Management for Agentic Evals and RAI, adding that it "pairs top accuracy with a natural, responsive conversation."

The pricing is doing most of the work in the pitch: $0.025 per task on Big Bench Audio versus GPT-Live-1 at $0.030, with the per-minute rate unchanged from Grok Voice 2.0. Every benchmark figure in the post traces back to xAI or Artificial Analysis; no independent audit of the Starlink or Tesla deployment numbers accompanies the release.

This is the 49th xAI item in our 90-day tracker, landing in a voice-AI cycle that has already produced 41 others in the same window.