# MarkTechPost — Meet Grok Voice 3.0: SpaceXAI Voice Agent Model Ranks #1 on Artificial Analysis

- Company: MarkTechPost (marktechpost.com)
- Announced: 2026-10-15T05:18:54+00:00
- Category: not stated
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://www.marktechpost.com/2026/10/14/meet-grok-voice-3-0-spacexai-voice-agent-model-ranks-1-on-artificial-analysis/
- Record: https://forck.live/items/22637-meet-grok-voice-3-0-spacexai-voice-agent-model-ranks-1-on-artificial-analysis
- Subject: Reporting

SpaceXAI just released Grok Voice 3.0 . Grok Voice 3.0 is a SpaceXAI speech-to-speech model that listens, reasons, calls tools and speaks. It now ranks first on the Artificial Analysis Speech-to-Speech Index with a score of 86.9. For developers, the endpoint, events and $0.08 per minute price are unchanged from Grok Voice 2.0. TL;DR Runs on: SpaceXAI’s hosted Voice Agent API only. No open weights, no local or quantized variants. Performance: Highest Index score of any model Artificial Analysis currently ranks. Best: 86.9 on the AA Speech-to-Speech Index, ranked #1. Worst: 71.6% on τ-Voice, behind GPT-Live-1 (Astra, medium) at 74.5%. Bottom line: Best: top composite score at 0.81 s time to first audio. Worst: not the leader on agentic task resolution or raw speech reasoning. What is Grok Voice 3.0? Grok Voice 3.0 is SpaceXAI’s flagship realtime voice model, exposed as grok-voice-3.0 on the /v1/realtime WebSocket endpoint . The grok-voice-latest alias already points to it, so existing agents switched automatically. SpaceXAI has not published parameter counts or architecture details. …

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