Rohan Paul (@rohanpaul_ai) · 10/15/2026, 01:25:02
xAI Launches Grok Voice 3.0: Tops Speech-to-Speech Index with 71.6% Task Success Rate
xAI has released Grok Voice 3.0, which tops the Artificial Analysis Speech-to-Speech Index with a score of 86.9, surpassing OpenAI and Google. The model demonstrates a significant leap in task success rates for simulated customer support scenarios, rising from 56.5% to 71.6%, while offering 40% faster response times and lower costs at $0.025 per task.
SOURCE COVERAGEFull Original Report
Rohan Paul (@rohanpaul_ai) · 2026-10-14 17
SpaceXAI launched Grok Voice 3.0
tops Artificial Analysis’s Speech-to-Speech Index at 86.9, beating OpenAI and Google.
The index blends spoken reasoning, simulated support calls, blind preference votes and task success, where 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 jumped 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. Introducing Grok Voice 3.0 +2
It also costs 0.030 for GPT-Live-1 and $0.055 for GPT-Realtime-2.1 (High).
