Noometry

Model comparison

Gemini 3.5 Flash Lite vs Gemini 3 Deep Think

Gemini 3.5 Flash Lite has enough public results to be ranked (#133); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

Last verified . 3 shared benchmarks.

Gemini 3.5 Flash Lite Google

41.5

Rank #133 Confirmed

Gemini 3 Deep Think Google

58.3

Unranked Sparse

Summary

  • They share 3 benchmarks with published results for both. Gemini 3.5 Flash Lite scores higher in 0 categories and Gemini 3 Deep Think in 1 category; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3 Deep Think leads 70.2 to 27.8.
  • The biggest single-benchmark swing is ARC-AGI-2: 10.3% for Gemini 3.5 Flash Lite and 84.6% for Gemini 3 Deep Think.

Side by side

Gemini 3.5 Flash LiteGemini 3 Deep Think
ProviderGoogleGoogle
Noometry Index41.558.3
Released2026-07-212026-02-12
WeightsProprietaryProprietary
Context window1.05M—
Max output66K—
Input $ / M tokens$0.30—
Output $ / M tokens$2.50—
Results tracked393

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Category by category

Coding Not comparable

Gemini 3.5 Flash Lite: 42.4 (#104), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
LMArena WebDev1440—
SciCode41.3%—
WeirdML39%—
LMArena Coding1453—
ALE-Bench765.27—

Agentic & Tool Use Not comparable

Gemini 3.5 Flash Lite: 25.7 (#107), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
APEX-Agents29.3%—
GDP.pdf10%—

Reasoning Gemini 3 Deep Think leads

Gemini 3.5 Flash Lite: 27.8 (#114), Gemini 3 Deep Think: 70.2 (#14)

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
ARC-AGI-210.3%84.6%
ARC-AGI-153.5%96%
CritPt0%25.7%
NYT Connections (extended)60.4%—
Chess Puzzles22%—
LMArena Hard Prompts1441—
Mystery Game Puzzles19%—
DTBench83.5%—
LMCA37.6%—
Epoch Capabilities Index145.13—

Math Not comparable

Gemini 3.5 Flash Lite: 25.9 (#264), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
FrontierMath (Tiers 1-3)26%—
FrontierMath Tier 40%—
OTIS Mock AIME 2024-202571.1%—
ProofBench13%—
LMArena Math1433—

Knowledge Not comparable

Gemini 3.5 Flash Lite: 50.1 (#72), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
GPQA Diamond83.3%—
LMArena Expert1435—

Multimodal Not comparable

Gemini 3.5 Flash Lite: 41.1 (#40), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
LMArena Vision1268—

Multilingual Not comparable

Gemini 3.5 Flash Lite: 53.5 (#63), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
LMArena Non-English1427—
LMArena Chinese1469—
LMArena French1451—
LMArena German1454—
LMArena Japanese1427—
LMArena Korean1407—
LMArena Russian1443—
LMArena Spanish1442—

Instruction Following Not comparable

Gemini 3.5 Flash Lite: 74.8 (#85), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
LMArena Instruction Following1420—

Long Context Not comparable

Gemini 3.5 Flash Lite: 43.9 (#84), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
LMArena Longer Query1435—

Writing & Preference Not comparable

Gemini 3.5 Flash Lite: 64.2 (#57), Gemini 3 Deep Think: —

BenchmarkGemini 3.5 Flash LiteGemini 3 Deep Think
LMArena Text1435—
LMArena Creative Writing1420—
EQ-Bench Creative Writing1559—
LMArena Multi-Turn1445—

Frequently asked questions

Is Gemini 3.5 Flash Lite better than Gemini 3 Deep Think?

Gemini 3.5 Flash Lite has enough public results to be ranked (#133); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

How many benchmarks do Gemini 3.5 Flash Lite and Gemini 3 Deep Think share?

3 benchmarks have published results for both models. Gemini 3.5 Flash Lite has 39 scored results on Noometry and Gemini 3 Deep Think has 3.

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