xAI launches Grok Voice 3.0: #1 on AA speech index, sub-1s latency, same price as predecessor
minchoi · x · 2026-10-15
xAI announced Grok Voice 3.0, a speech-to-speech model it calls the world's most intelligent, now available in the API at the same price as its predecessor. Per Artificial Analysis, it ranks #1 on the Speech-to-Speech Index (86.9) ahead of GPT-Live-1 (83.2) and Gemini 3.8 Live (82.6), posts a 1070 Elo on Speech Agent Arena, 94.8% task success, 97% on Full Duplex Bench, and scores 71.6% on τ-Voice with 40% lower latency than GPT-Live-1 — with end-to-end latency under one second. It already powers millions of daily conversations across Tesla and SpaceX.
Related event: xAI launches Grok Voice 3.0, tops Speech-to-Speech Index(16 posts)→
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