Gemini 3.8 TTS Playground
Google released Gemini 3.8 Flash TTS models; Simon Willison published a bring-your-own-key playground.
Google released gemini-3.8-flash-tts and gemini-3.8-flash-lite-tts, text-to-speech models with a library of more than 2,000 voices. Users can create a custom voice from a 30-second sample they have rights to use. The Gemini API also supports scripted conversations among multiple characters, each with its own voice and style instructions. Simon Willison published a bring-your-own-key playground, built with GPT-6 Astra, that uses the API's open CORS policy.
- Google released gemini-3.8-flash-tts and gemini-3.8-flash-lite-tts.
- The library includes more than 2,000 voices.
- Custom voices can be made from a 30-second authorized sample.
- The API supports multi-character conversations with per-voice style instructions.
Tool: Gemini 3.8 TTS Playground Google released two new Gemini text-to-speech models today - gemini-3.8-flash-tts and gemini-3.8-flash-lite-tts . They come with a library of over 2,000 voices, plus the ability to create a custom voice with "just a 30-second audio sample of your voice or a voice you have the rights to use". I vibe coded this bring-your-own-key playground interface with GPT-6 Astra, taking advantage of the open CORS policy of the underlying Gemini API. A notable feature of the API is that it makes it easy to define a full conversation between multiple characters, each with different voices and voice style instructions. Here's a short demo clip of a conversation between two…
This source does not provide full text. Read it at simonwillison.net.