Simon Willison’s Weblog·1 month ago·
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● 7 sources
Google released Gemini 3.8 Live and Gemini 3.8 Live Extended Thinking, two new speech-to-speech models for Gemini Live. The release includes a WebSocket connection to wss://generativelanguage.googleapis.com/ws/google.ai.generativelanguage.v1alpha.GenerativeService.BidiGenerateContent with the model running via a browser voice conversation UI. Users can pick a model and voice preset, optionally set a system prompt, and interrupt the model during playback.
Google released Gemini 3.8 Live and Gemini 3.8 Live Extended Thinking as production-focused speech-to-speech dialogue models for real-time voice agents. The Extended Thinking model scored 82.6 on Artificial Analysis’ Speech to Speech Quality Index. Google’s offering shifts voice agents toward tool-using, multi-step reasoning while keeping streamed conversation and speech, and it’s available via the Gemini Live API with $0.005/min input and $0.018/min output audio.
Google launched Gemini 3.8 Live and Gemini 3.8 Live Extended Thinking as its latest live dialogue models for natural conversation. The release is for models named 3.8 (including the “Extended Thinking” version). Users now have access to updated live, conversational AI models with extended thinking behavior.
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