xAI launches Grok Voice 3.0, a speech-to-speech model, in the Voice Agent API at the same price

GrokNew modelConfirmed

xAI announced Grok Voice 3.0 on October 14, 2026 and says it is available today in the Voice Agent API at $0.08 per minute ($4.80 per hour), the same price as Grok Voice 2.0.

The grok-voice-latest alias has already been switched to grok-voice-3.0, so agents using the alias are upgraded automatically with no changes needed. xAI's release notes say grok-voice-2.0 is deprecated and give no shutdown date. xAI reports an Artificial Analysis Speech-to-Speech Index score of 86.9 and says Grok Voice 3.0 also powers Grok Bot's voice mode.

Who can use it: Developers using the xAI Voice Agent API (Speech to Speech). Agents on grok-voice-latest are moved automatically; agents pinned to grok-voice-2.0 need to set the model to grok-voice-3.0 or grok-voice-latest.
When: Available from October 14, 2026. No shutdown date has been published for grok-voice-2.0.

xAI: Introducing Grok Voice 3.0 · xAI API release notes Announced 2026-10-14 · date only

Read the official announcement for access details. Availability can depend on your plan, region or workplace settings.

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