Google · voice model

Gemini 3.8 Flash-Lite TTS

Gemini 3.8 Flash-Lite TTS is a Google voice model released Sep 22, 2026; Google's newest voice model in our dataset is Gemini 3.8 Flash TTS. Proprietary, API access only. Google's fast, cost-efficient text-to-speech model, generally available since Sep 22, 2026 alongside Gemini 3.8 Flash TTS. Verified against vendor sources on Oct 26, 2026.

Reported Last verified Oct 26, 2026 · All models · JSON · Markdown

ReleasedSep 22, 2026
Context window8K8,192 tokens
Max output16K16,384 tokens
LicenceProprietaryProprietary (API)

InTextOutAudio

Key facts

Gemini 3.8 Flash-Lite TTS: key facts with sources
Fact	Value	Source
Vendor	Google	n/a
Released	Sep 22, 2026	source
Status	generally available	n/a
API id	gemini-3.8-flash-lite-tts	source
Context window	8,192 tokens (8K)	source
Max output	16,384 tokens	source
Input	text	source
Output	audio	source
Licence	Proprietary (API)	source

Where Gemini 3.8 Flash-Lite TTS sits in our data

Released Sep 22, 2026 (week 39 of 2026), in September 2026. Other models in our data released that month: GPT-6.1 Sol, Claude Sonnet 5.5, Claude Opus 5.5, Gemini 3.8 Flash TTS, GPT-6 Luna, GPT-6 Sol.
The previous Google model we track is Gemini 3.8 Live Extended Thinking (Sep 15, 2026), 7 days earlier.
Of the 60 models in our data with a published context window, Gemini 3.8 Flash-Lite TTS has the number 60 largest (8K tokens). Our data is not every model on the market.
Google tools we cover: Gemini Notebook, Google ADK, Gemini CLI.
All releases by date: AI model releases by month · new AI models this week.

How Gemini 3.8 Flash-Lite TTS differs from Gemini 3.8 Flash TTS

Read from the recorded facts of the two models, not from a head-to-head test. We have not run either.

We have no recorded price for Gemini 3.8 Flash-Lite TTS; Gemini 3.8 Flash TTS has one.
Gemini 3.8 Flash-Lite TTS lists a 8K-token context window; we have none recorded for Gemini 3.8 Flash TTS.
Both were released on Sep 22, 2026.
Facts for the other model: Gemini 3.8 Flash TTS.

What we tested

Nothing yet. We have not run Gemini 3.8 Flash-Lite TTS ourselves, so every fact on this page is Reported from the sources below. When we do test it, the scope will be stated here and in our test logs. See methodology.

Not verified, left out

We could not confirm these on a vendor page, so we do not state them.

The 16,384 output limit is the Gemini API serving limit.