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Gemini 3.8 Flash TTS adds prompt-directed voices and line-by-line control

deepmind.google 6 min read Editor score 6/10

The models support custom or replicated voices and natural-language direction of pacing, emotion and conversational sounds; the release also mentions watermarking. These controls could shape how teams build generated-audio products and voice agents.

What

Gemini 3.8 Flash TTS and Flash-Lite TTS are text-to-speech models for expressive audio generation.

How

Flash TTS creates prompted voices and directs dialogue line by line; Flash-Lite targets high-volume, cost-efficient generation.

Why it matters

Watermarking and support for voice agents, dubbing, and other audio uses matter to teams building audio systems at scale.

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