Google launches Gemini 3.8 Flash TTS and Flash-Lite TTS text-to-speech models

Google AI launched Gemini 3.8 Flash TTS and Gemini 3.8 Flash-Lite TTS, which it describes as its most expressive audio models yet.

The models support custom voices across 100+ languages, 2,000+ prebuilt voices, multi-speaker conversations, line-by-line delivery control, and cues such as <laughs> and |mhm|. Google positions Flash TTS for bespoke voices in gaming, audiobooks, and podcasts, and Flash-Lite TTS for near real-time voice agents, high-volume dubbing, and bulk audio.