# Google adds Gemini 3.8 Flash TTS models to its API

> Google released two new text‑to‑speech models, Gemini 3.8 Flash TTS and Flash‑Lite TTS, for general availability on its Gemini API.

Oossa · 2026-09-29 · https://oossa.com/en/google-adds-gemini-3-8-flash-tts-models-to-its-api

Google announced that the Gemini API now offers two new text‑to‑speech models. Gemini 3.8 Flash TTS is a high‑quality, studio‑like voice model, while Gemini 3.8 Flash‑Lite TTS is a faster, cheaper version aimed at real‑time voice agents and high‑volume use. Both are accessed through the new /v1beta/voices endpoint. The update gives developers a richer voice library with over 150 built‑in and custom voices.

## The facts

- Release date: 22 September 2026
- Endpoint: /v1beta/voices for both Gemini‑3.8‑flash‑tts and Gemini‑3.8‑flash‑lite‑tts

## Why it matters

Developers can now add more natural, scalable speech to apps without building their own voice models.

## Sources & references

1. [ai.google.dev: April 1, 2026](https://ai.google.dev/gemini-api/docs/changelog#04-01-2026) – Google Gemini API, 2026-09-29

Last updated: 2026-09-29