Gemini 3.1 Flash-Lite

Released

Gemini 3.1 Flash-Lite is an AI model released by Google on Tuesday, Mar 3 2026, 12 days after Gemini 3.1 Pro. Benchmark results (shown below) cover BullshitBench v2.

API pricing

InputWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
$0.25
Cached inputA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again.
$0.025
OutputWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
$1.50
  • Output prices include reasoning tokens.
USD per 1M tokensEvery price here is for one million tokens. A token is roughly three-quarters of a word, so a million tokens is about 750,000 words of text.Verified August 18, 2026Read from ai.google.dev. Click the check to open the source.

Available from

Google AI Studio—flex$0.125$0.751M
Google AI Studio——$0.25$1.501M
Googleglobal—$0.25$1.501M
Googleeu—$0.275$1.651M
Googleus—$0.275$1.651M
Google AI Studio—priority$0.45$2.701M
Googleglobalpriority$0.45$2.701M
USD per 1M tokensEvery price here is for one million tokens. A token is roughly three-quarters of a word, so a million tokens is about 750,000 words of text.Checked October 16, 2026Third-party rates from openrouter.ai, not the lab’s own list price.

Benchmarks

BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better.
11%
#85 of 97

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Gemini 3.1 Flash-Lite

Frequently asked questions

Gemini 3.1 Flash-Lite was released by Google on Tuesday, Mar 3 2026.

All Google releases

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