---
type: "raw_signal"
id: "gemini-3-8-tts-playground-4ebc98"
slug: "gemini-3-8-tts-playground-4ebc98"
title: "Gemini 3.8 TTS Playground"
description: "Google released Gemini 3.8 Flash TTS and Flash-Lite TTS, as documented in a public playground built by Simon Willison."
retrieval_nugget: "Google released Gemini 3.8 Flash TTS and Flash-Lite TTS, as documented in a public playground built by Simon Willison."
observed_at: "2026-09-24"
record_date: "2026-09-24"
date_kind: "observed_at"
why_it_matters: "Source: https://simonwillison.net/2026/Sep/23/gemini-tts-playground"
novelty: "notable"
verification_level: "source-linked"
signal_type: "announcement"
source_platform: "simonwillison.net"
topics: []
entities: []
related_patterns: []
source_url: "https://simonwillison.net/2026/Sep/23/gemini-tts-playground"
source_urls: ["https://simonwillison.net/2026/Sep/23/gemini-tts-playground"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "signal:gemini-3-8-tts-playground-4ebc98"
status: "published"
visuals: []
routes: {"html":"https://newruntime.com/signals/gemini-3-8-tts-playground-4ebc98/","markdown":"https://newruntime.com/signals/gemini-3-8-tts-playground-4ebc98.md","json":"https://newruntime.com/signals/gemini-3-8-tts-playground-4ebc98.json"}
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
---

# Gemini 3.8 TTS Playground

## Retrieval answer

Google released Gemini 3.8 Flash TTS and Flash-Lite TTS, as documented in a public playground built by Simon Willison.

Google released Gemini 3.8 Flash TTS and Flash-Lite TTS, as documented in a public playground built by Simon Willison. The interface exposes multi-speaker conversations, per-speaker voice selection, and delivery-style instructions. Willison reports a catalog of 2,089 voices in the tool and says a 78-second Flash TTS sample took roughly 20 seconds to generate at a cost of 2.74 cents.

Source: https://simonwillison.net/2026/Sep/23/gemini-tts-playground

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

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