Grok Voice 3.0 takes #1 on Speech-to-Speech Index at 86.9 with 94.8% task success rate
ArtificialAnlys · x · 2026-10-15
Artificial Analysis benchmarks put xAI's Grok Voice 3.0 at #1 on the Speech to Speech Index (86.9), ahead of GPT-Live-1 (83.2) and Gemini 3.8 Live ET (82.6). It leads task success rate at 94.8%, scores 98.5% on Big Bench Audio reasoning, ranks #2 on Tau Voice agentic evals (71.6%), and delivers 0.81s time-to-first-audio. Priced at $0.08/min via the Realtime API ($4.80/hour of input audio), 2.2x cheaper than GPT-Realtime-2.1 High.
Related event: xAI launches Grok Voice 3.0, tops Speech-to-Speech Index(16 posts)→
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