Gemini 3.8 Flash TTS and Gemini 3.8 Flash-Lite TTS are generally available

What changed

Google made Gemini 3.8 Flash TTS (gemini-3.8-flash-tts) and Gemini 3.8 Flash-Lite TTS (gemini-3.8-flash-lite-tts) generally available. Gemini 3.8 Flash TTS is the flagship creative TTS model, built for voice fidelity, acting, regional dialects and long multi-turn stability. Gemini 3.8 Flash-Lite TTS is a fast, cost-efficient model built to replace gemini-3.1-flash-tts-preview for high-throughput production and real-time voice agents. Google also released the Voices endpoint (/v1beta/voices) with voice design, voice replication with consent verification, and a library of 150+ prebuilt and custom voices.

What it means for Zabio customers

These TTS models are not in the Zabio catalog, so you cannot call them or route to them through Zabio. The source states no prices for them. If you use gemini-3.1-flash-tts-preview directly with Google, Gemini 3.8 Flash-Lite TTS is its stated replacement.

What Zabio does

Catalog change under review. Not in the Zabio catalog yet: gemini-3.8-flash-tts, gemini-3.8-flash-lite-tts.

Source

Create persistent custom vocal personas from text prompts, replicate voices with consent verification, and query 150+ prebuilt and custom voices.

Original announcement: Gemini API release notes

Published automatically from the official announcement. Reviewed by a person within the day.