Gemini 3.8 TTS Playground

Google released two new text-to-speech models (gemini-3.8-flash-tts and gemini-3.8-flash-lite-tts) that can convert written text into spoken audio using over 2,000 voices or custom voices created from a 30-second audio sample. A developer created an interactive playground tool where users can write multi-character conversations, preview the generated speech, and share their creations through shareable URLs.