Grok Voice 3.0 is available in xAI's Voice Agent API at $0.08 per minute ($4.80 per hour), the grok-voice-latest alias points to Grok Voice 3.0, and Grok Voice 2.0 is deprecated.
● OPEN · settles 2026-10-18
| Claim made in | Introducing Grok Voice 3.0 (x.ai) |
| Bank record | xAI — see its full delivery record in the bank |
| Market opened | 2026-10-15 |
| Market type | Flash market (1–3 days) |
| Calls lock | 2026-10-17 08:00 Eastern Time (12:00 UTC) — 24 hours before the check, so nobody can call it with the answer already visible |
| Check time | 2026-10-18 08:00 Eastern Time (12:00 UTC) |
| Source of record | x.ai |
Background
xAI's new speech-to-speech model does not ask developers to migrate. It simply took over: every agent pinned to grok-voice-latest was switched to Grok Voice 3.0 automatically on launch day, and Grok Voice 2.0 was deprecated the same day. The price did not move — $0.08 per minute, $4.80 per hour, the same as its predecessor — and the API surface is unchanged. What changed is the scoreboard. In Artificial Analysis testing dated October 13, Grok Voice 3.0 tops the Speech-to-Speech Index at 86.9, ahead of OpenAI's GPT-Live-1 (Astra, Medium) at 83.2 and Gemini 3.8 Live at 82.6, with 98.5% on Big Bench Audio and 97.0% on Full Duplex Bench. The one row xAI cannot claim outright is tau-Voice, the simulated support-call benchmark, where GPT-Live-1 still leads 74.5% to 71.6%; xAI's answer is latency, 40% lower and under one second. On ServiceNow's EVA-Bench it takes the top accuracy score at 74%. The production numbers are the real pitch: Grok Voice handles millions of conversations a day in Tesla vehicles, and Starlink call centers run 20,000 calls a day through it, about 70% resolved with no human involved and one in four sales calls ending in a purchase.
This market exists because launch announcements are easy to make and hard to grade. Press releases describe what a company intends to ship; they rarely come back later to say whether it shipped. AI Rank Bank pulls one checkable sentence out of the coverage — the sentence above — gives it a date, and lets readers price it in public. The launch itself stays with its publisher; what lives here is the claim, the crowd's call, and eventually the receipt.
How this claim is judged
Judging criteria, fixed when the market opened: Delivered if, at the check time, xAI's API pricing and release notes still show grok-voice-3.0 speech-to-speech priced at $0.08 per minute ($4.80 per hour), grok-voice-latest pointing to grok-voice-3.0, and grok-voice-2.0 marked deprecated. A price change, the alias pointing back to another model, or Grok Voice 3.0 being withdrawn from the API does not count.
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How readers called it
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How readers split
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Verdict
No verdict yet. This claim is checked on 2026-10-18 08:00 Eastern Time (12:00 UTC) against the source of record below. When the check happens, one of three stamps lands on this page permanently: delivered if the claim came true as stated, busted if it did not, or unproven if the date passes without public evidence either way. Unproven claims pay no points and do not count against any reader's hit rate.
About this market
AI Rank Bank is an AI news front page with a memory. Every launch on the homepage carries one claim like this one, with a check date. Readers call claims with points, build a public record, and climb the leaderboard. Companies build a record too: every settled claim lands on the company's bank page, where its delivery rate is simple arithmetic that nobody gets to edit afterwards. There is no money in the market — points buy bragging rights only, which keeps the incentives pointed at being right.