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Simon Willison

Gemini Live audio

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Google has launched Gemini 3.8 Live and Gemini 3.8 Live Extended Thinking, two speech‑to‑speech models similar to OpenAI’s GPT‑Live family. A web UI built with GPT‑6 Astra Extra High lets users select a model, choose a voice preset, provide an optional system prompt, and engage in voice conversations directly in the browser, even interrupting the model while it speaks. The implementation relies on a WebSocket endpoint and the Web Audio API for capturing and playing audio, with no external libraries required.

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