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SpaceXAI's Grok Voice 3.0 tops Speech-to-Speech Index at 86.9
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SpaceXAI launched Grok Voice 3.0, which tops Artificial Analysis's Speech-to-Speech Index at 86.9, beating OpenAI and Google. The index combines spoken reasoning, simulated support calls, blind preference votes, and task success; GPT-Live-1 (Astra, Medium) reaches 83.2. The largest gain comes on τ-Voice, where a simulated caller asks the model to rebook flights or dispute charges using domain tools and a policy document. There, Grok's success rate rose from 56.5% under Grok Voice 2.0 to 71.6%. Grok's edge is speed: it answers 40% sooner than GPT-Live-1, whose 1.34 seconds implies roughly 0.8 seconds, slightly slower than Grok Voice 2.0's 0.70. It also costs $0.025 per task on Artificial Analysis's Big Bench Audio run, against $0.030 for GPT-Live-1 and $0.055 for GPT-Realtime-2.1 (High).
Source report
SpaceXAI has launched Grok Voice 3.0, which tops Artificial Analysis's Speech-to-Speech Index with a score of 86.9, beating OpenAI and Google.
Benchmark Performance
The index blends spoken reasoning, simulated support calls, blind preference votes, and task success. GPT-Live-1 (Astra, Medium) reaches 83.2 on the same index.
Largest Gain: τ-Voice
The largest gain comes on τ-Voice, where a simulated caller asks the model to rebook flights or dispute charges using domain tools and a policy document. There, Grok's success rate jumped from 56.5% under Grok Voice 2.0 to 71.6%.
Speed and Cost
Grok's edge is speed: it answers 40% sooner than GPT-Live-1, whose 1.34 seconds implies roughly 0.8 seconds—slightly slower than Grok Voice 2.0's 0.70.
On cost, Grok Voice 3.0 runs $0.025 per task on Artificial Analysis's Big Bench Audio, against $0.030 for GPT-Live-1 and $0.055 for GPT-Realtime-2.1 (High).
Source
rohanpaul_aiNeutral / independent