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VECTOR WIREAI INTELLIGENCE
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Gemini 3.1 Flash Lite Preview vs Gemini 3 Flash Preview

Google · released

Wins 1 of 8 areas

Facts

Google · released

Wins 6 of 8 areas

Coding · Agents · Reasoning · Images and charts · Math · Long documents

Gemini 3 Flash Preview is the stronger all-rounder.Gemini 3.1 Flash Lite Preview is cheaper and better at facts.

Scores updated · 32 tests both models report · How we compare

Where each one wins

Tests won in each of the eight areas we test. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.

Math, long documents and following instructions rest on a single test each.

What it costs

Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.

Gemini 3.1 Flash Lite Preview$0.25 to read · $1.50 to write$1.75Price from Google's own price page
Gemini 3 Flash Preview$0.50 to read · $3.00 to write$3.50Price from Artificial Analysis

Gemini 3.1 Flash Lite Preview costs 50% less for the same work.

The biggest differences

The tests each model wins by the widest margin, up to three each. Scores are out of 100.

Where Gemini 3 Flash Preview pulls ahead

  • Command-line tasks in a real terminalTerminal-Bench 2.1+26.9points aheadGemini 3 Flash Preview58Gemini 3.1 Flash Lite Preview31.1
  • Unpublished advanced math problemsFrontierMath Tiers 1-3 (v2)+23.5points aheadGemini 3 Flash Preview51.2Gemini 3.1 Flash Lite Preview27.7
  • Very hard expert questions across many subjectsHumanity's Last Exam+19.4points aheadGemini 3 Flash Preview36.6Gemini 3.1 Flash Lite Preview17.2

Where Gemini 3.1 Flash Lite Preview pulls ahead

Every test, side by side

All 32 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingGemini 3 Flash Preview

Full coding ranking

AgentsGemini 3 Flash Preview

Full agents ranking

ReasoningGemini 3 Flash Preview

Full reasoning ranking

FactsGemini 3.1 Flash Lite Preview

Full facts ranking

Images and chartsGemini 3 Flash Preview

Full images and charts ranking

MathGemini 3 Flash Preview

Full math ranking

Long documentsGemini 3 Flash Preview
  • AA-LCRGemini 3 Flash Preview by 3.774.378+3.7

Full long documents ranking

Following instructionsEven

Full following instructions ranking

Other results13 tests, not counted

Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.

Questions people ask

Which is better, Gemini 3.1 Flash Lite Preview or Gemini 3 Flash Preview?

Gemini 3 Flash Preview wins six of the eight areas we test: coding, agents, reasoning, images and charts, math and long documents. Gemini 3.1 Flash Lite Preview wins facts, and costs 50% less. They are level on following instructions.

Which is better for coding?

Gemini 3 Flash Preview. It wins 4 of the 4 coding tests both models report; Gemini 3.1 Flash Lite Preview wins none.

Which is cheaper?

Gemini 3.1 Flash Lite Preview costs $0.25 per million input tokens and $1.50 per million output tokens; Gemini 3 Flash Preview costs $0.50 and $3.00. That makes Gemini 3.1 Flash Lite Preview about 50% cheaper for the same work.

How do you compare the two?

We use the 32 benchmark tests both models have published scores on. The verdict counts the 19 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 13 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.