Gemini 3.8 Live undercuts speech-to-speech rivals at $0.84/hour, roughly half Gemini 3.1 Flash Live
ArtificialAnlys · x · 2026-09-16
- Artificial Analysis added Gemini 3.8 Live to its Speech to Speech Index: input audio costs $0.84/hour, the cheapest in the index and about half the $1.75 of Gemini 3.1 Flash Live High.
- Extended Thinking (High) runs $3.50/hour, below GPT-Live-1 (Sol, low) at $4.47, Grok Voice Think Fast 2.0 High at $4.80, GPT-Live-1 (Astra, medium) at $5.83, and 3.1x cheaper than GPT-Realtime-2.1 High ($10.75).
- The index weights Speech Reasoning (Big Bench Audio), Agentic Performance (τ-Voice), Arena Preference, and task success rate; a Speech Agent Arena leaderboard is also live.
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