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AI models · Google

Gemini 3.1 Flash-Lite: release date and what it's for

Released , according to Google's changelog. Cheaper than the 3.5 Lite that replaced it, and audio costs double the text rate. Worth knowing if your volume is text.

Status
Live
Released
Lab
Google
Input
$0.25per million tokens
Output
$1.50per million tokens
Context window
1.05Mtokens
Max output
66Ktokens

API model ID: gemini-3.1-flash-lite

What we've written about Gemini 3.1 Flash-Lite

September 23, 2026

Gemini models explained: 3.8 Flash vs Flash-Lite vs 3.1 Pro, with every release date

Google has shipped six Flash and Flash-Lite models since May, but the newest Pro you can call is still a February preview.

How Gemini 3.1 Flash-Lite compares on price and context

Price per million tokens

inputoutput

  1. GPT-6 Astra$10 / $50
  2. Claude Fable 5.1$10 / $50
  3. Muse Spark 1.3$1.25 / $4.25
  4. Gemini 3.8 Flash$0.75 / $3.75
  5. Gemini 3.7 Flash$0.75 / $3.75
  6. Gemini 3.6 Flash$0.75 / $3.75
  7. Gemini 3.1 Flash-Lite$0.25 / $1.50
Context window, in tokens

how much it reads at once

  1. GPT-6 Astra1.05M
  2. Gemini 3.1 Flash-Lite1.05M
  3. Gemini 3.8 Flash1.05M
  4. Gemini 3.7 Flash1.05M
  5. Gemini 3.6 Flash1.05M
  6. Muse Spark 1.31.05M
  7. Claude Fable 5.11M

Next to the newest Google models and the current model from other labs. Prices are in US dollars per million tokens.

What is Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash-Lite is a model from Google, built in the US. It's out, and you can use it today.

When did Gemini 3.1 Flash-Lite come out?

Google released it on May 7, 2026. That date comes from Google's changelog.

More from Google

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Gemini 3.8 Flash

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GoogleLive

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Gemini 3.6 Flash

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GoogleLive

Gemini 3.5 Flash-Lite

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$0.30
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GoogleLive

Gemini 3.5 Flash

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$1.50
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GooglePreview

Gemini 3.1 Pro Preview

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$2
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GooglePreview

Gemini 3 Flash Preview

in /1M
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GoogleAnnounced

Gemini 4 Argon

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More news: Google AI news: Gemini and DeepMind updates

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