POPA ReconTop 10 Voice Models by Speech to Speech Index
Top 10 Voice Models by Speech to Speech Index Google's Gemini 3.8 Live Extended Thinking, released yesterday, debuts at #1 on Artificial Analysis' Speech to Speech Index with 82.6 – edging out GPT-Live-1 Astra (81.5) and Grok Voice Think Fast 2.0 (81.3). The top four sit within 2.5 points of each other, so the voice race is a three-way tie, not a Google runaway. The story hides in the price column. Extended Thinking costs ~$3.50 per hour of audio, versus $4.80 for Grok and $5.83 for GPT-Live-1 Astra – Google tops the board while undercutting both rivals. And the standard Gemini 3.8 Live at 7…
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