xAI's Grok Voice 3.0 Replaces the grok-voice-latest Alias, Upgrading Existing Sessions

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xAI launched Grok Voice 3.0 on October 14, and its release notes state that the grok-voice-latest alias now points to this model, so existing sessions using the alias are upgraded automatically. The new speech-to-speech model is priced the same as Grok Voice 2.0 at $0.08 per minute, and xAI has marked version 2.0 as deprecated without giving a retirement date. Artificial Analysis ranks Grok Voice 3.0 first on its Speech to Speech Index with a score of 86.9, ahead of OpenAI's GPT-Live-1 at 83.2. On the agentic τ-Voice benchmark, however, GPT-Live-1 still leads, 74.5% to 71.6%, though Grok Voice 3.0 improved substantially over its predecessor's 56.5%. Developers relying on the alias may see changed behavior since the API endpoint is unchanged but the underlying model is not.

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