Gemini 3.8 Flash TTS

Speech

gemini-3.8-flash-tts

Google|Created Oct 30, 2026

Speech

Gemini 3.8 Flash TTS is Google's flagship creative text-to-speech model, engineered for studio-grade voice fidelity, expressive acting, authentic regional accents, and rock-solid long-form multi-turn stability.

Overview Specifications Activity Performance Uptime Examples API Reference

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Pricing-50%

Pay-as-you-go rates for this model. More details in the billing guide.

Speech (1k)

$0.0068

Capabilities

Input Modalities

Text

Output Modalities

Audio

Supported Parameters

Available parameters for API requests

Response Format