Grok Voice 3.0 at a glance
Grok Voice 3.0 tops Artificial Analysis's Speech-to-Speech Index in results xAI cited at launch, uses the same API as Grok Voice 2.0, and replaced it automatically for agents on grok-voice-latest.
What changed with Grok Voice 3.0
On October 14, 2026, xAI released Grok Voice 3.0 in its Speech to Speech API at $0.08 per minute ($4.80 per hour), the same as Grok Voice 2.0. It uses the same endpoint, session parameters, and events, and agents using the grok-voice-latest alias were moved over automatically; Grok Voice 2.0 is now deprecated.
xAI cited Artificial Analysis results dated October 13, 2026 that put Grok Voice 3.0 first on the Speech-to-Speech Index at 86.9, with 97.0% on Full Duplex Bench for turn-taking and 71.6% on τ-Voice for support calls. xAI also says Starlink call centers use Grok Voice for about 20,000 calls a day and resolve roughly 70% without a human. These are vendor-reported figures.
Grok Voice 3.0 in numbers
Values are copied from the linked source on the date shown. They are not IA Compa measurements.
- Speech to Speech API price per minuteas of · Source for Speech to Speech API price per minute: x.ai (opens in a new tab)
- $0.08/min
Why Grok Voice 3.0 matters for businesses
For agencies building AI receptionists and support lines, this is a free quality upgrade on the same price and API. Because the alias switch is automatic, replay your test calls, especially address capture, transfers, and booking, and pin a version if a client's flow depends on exact behavior.
Put it to work: AI Voice Agents
Sources for this story
- Official
- Release notes (opens in a new tab)Official
xAI Docs · docs.x.ai
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
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- #xai
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- #speech-to-speech
- #call-center
