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Sep 15, 2026

Google releases Gemini 3.8 Live voice AI models, undercutting OpenAI on price

Google DeepMind launched Gemini 3.8 Live and Gemini 3.8 Live Extended Thinking on September 15, 2026, its most advanced native speech-to-speech models for real-time voice agents. At $1.38 per hour of voice conversation, the models significantly undercut OpenAI's GPT-Live-1 pricing while topping the Artificial Analysis speech-to-speech leaderboard.

Sep 15, 2026·6 sources
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Top claims

  • ▪In blind Speech Agent Arena conversations, human testers preferred the older Gemini 3.1 Flash Live model, which leads with an Elo of 1096, over Gemini 3.8 Live at 1083 and Extended Thinking at 990.
  • ▪Google charges $0.005 per minute for audio input and $0.018 per minute for audio output for both Gemini 3.8 Live models via the Live API.
  • ▪The Gemini 3.8 Live models support near real-time visual context processing, allowing voice agents to understand visual inputs alongside spoken user prompts.

Topics

Large language models (LLMs)AI tools & productsAI antitrust & competitionAI voice & speech toolsAI assistants & chatbots