Simon Willison tests multi-speaker synthesis with the Gemini 3.8 TTS Playground
Gemini 3.8 TTS Playground
What happened
Simon Willison has published Gemini 3.8 TTS Playground, an interactive interface with a built-in API key for generating single-speaker or multi-speaker conversational audio, previewing it, and inspecting request and response details. Configurations can be saved in shareable URLs.
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