Model comparison

Gemini 3.5 Flash Lite vs o1

Gemini 3.5 Flash Lite and o1 score almost the same on the Noometry Index (41.5 vs 40.9), so choose on price, context window or the category you care about most.

Last verified . 27 shared benchmarks.

Gemini 3.5 Flash Lite Google

41.5

Rank #133 Confirmed

o1 OpenAI

40.9

Rank #143 Confirmed

Summary

  • They share 27 benchmarks with published results for both. Gemini 3.5 Flash Lite scores higher in 6 categories and o1 in 4 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where o1 leads 36.1 to 25.9.
  • The biggest single-benchmark swing is ARC-AGI-1: 53.5% for Gemini 3.5 Flash Lite and 30.7% for o1.
  • Gemini 3.5 Flash Lite is cheaper at $0.30 / $2.50 per million input/output tokens, against $15 / $60 for o1.
  • Gemini 3.5 Flash Lite accepts more context: 1.05M tokens versus 200K.

Side by side

Gemini 3.5 Flash Lite and o1 specifications
Gemini 3.5 Flash Liteo1
ProviderGoogleOpenAI
Noometry Index41.540.9
Released2026-07-212024-09-12
WeightsProprietaryProprietary
Context window1.05M200K
Max output66K100K
Input $ / M tokens$0.30$15
Output $ / M tokens$2.50$60
Results tracked3952

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Category by category

Coding o1 leads

Gemini 3.5 Flash Lite: 42.4 (#104), o1: 46.1 (#70)

Coding benchmarks
BenchmarkGemini 3.5 Flash Liteo1
WeirdML39%47.6%
LMArena Coding14531367
Aider Polyglot—61.7%
LMArena WebDev1440—
SciCode41.3%—
LiveBench Coding—69.7%
CadEval—56%
ALE-Bench765.27—
HumanEval+—89%
MBPP+—80.2%

Agentic & Tool Use Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 25.7 (#107), o1: 24.6 (#117)

Agentic & Tool Use benchmarks
BenchmarkGemini 3.5 Flash Liteo1
APEX-Agents29.3%—
Cybench—10%
GDP.pdf10%—
METR Time Horizons—51.1%

Reasoning Too close to call

Gemini 3.5 Flash Lite: 27.8 (#114), o1: 27.9 (#111)

Reasoning benchmarks
BenchmarkGemini 3.5 Flash Liteo1
ARC-AGI-153.5%30.7%
Chess Puzzles22%15%
LMArena Hard Prompts14411371
DTBench83.5%74.7%
LMCA37.6%22.3%
Epoch Capabilities Index145.13141.91
ARC-AGI-210.3%—
SimpleBench—41.7%
NYT Connections (extended)60.4%—
CritPt0%—
EnigmaEval—5.7%
LiveBench Reasoning—91.6%
Mystery Game Puzzles19%—
LiveBench Data Analysis—65.5%
LiveBench—75.7%

Math o1 leads

Gemini 3.5 Flash Lite: 25.9 (#264), o1: 36.1 (#175)

Math benchmarks
BenchmarkGemini 3.5 Flash Liteo1
FrontierMath (Tiers 1-3)26%14.7%
OTIS Mock AIME 2024-202571.1%73.3%
LMArena Math14331388
FrontierMath Tier 40%—
ProofBench13%—
LiveBench Math—80.3%
MATH Level 5—94.7%
FrontierMath (Feb 2025 set)—9.3%

Knowledge Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 50.1 (#72), o1: 41.5 (#110)

Knowledge benchmarks
BenchmarkGemini 3.5 Flash Liteo1
GPQA Diamond83.3%76.8%
LMArena Expert14351361
Humanity's Last Exam—8%
SimpleQA Verified—41.1%
Confabulations—11.7%

Multimodal Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 41.1 (#40), o1: 34.2 (#93)

Multimodal benchmarks
BenchmarkGemini 3.5 Flash Liteo1
LMArena Vision12681168
GeoBench—80%
VPCT—37%
SpatialViz-Bench—41.4%

Multilingual Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 53.5 (#63), o1: 48.6 (#142)

Multilingual benchmarks
BenchmarkGemini 3.5 Flash Liteo1
LMArena Non-English14271358
LMArena Chinese14691394
LMArena French14511344
LMArena German14541337
LMArena Japanese14271346
LMArena Korean14071396
LMArena Russian14431356
LMArena Spanish14421345

Instruction Following Too close to call

Gemini 3.5 Flash Lite: 74.8 (#85), o1: 74.8 (#86)

Instruction Following benchmarks
BenchmarkGemini 3.5 Flash Liteo1
LMArena Instruction Following14201367
LiveBench Instruction Following—81.5%

Long Context o1 leads

Gemini 3.5 Flash Lite: 43.9 (#84), o1: 50.3 (#9)

Long Context benchmarks
BenchmarkGemini 3.5 Flash Liteo1
LMArena Longer Query14351378
Fiction.LiveBench—83.3%

Writing & Preference Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 64.2 (#57), o1: 55.6 (#144)

Writing & Preference benchmarks
BenchmarkGemini 3.5 Flash Liteo1
LMArena Text14351366
LMArena Creative Writing14201348
LMArena Multi-Turn14451369
Short-Story Creative Writing—70.2%
EQ-Bench Creative Writing1559—
LiveBench Language—65.4%

Frequently asked questions

Is Gemini 3.5 Flash Lite better than o1?

Gemini 3.5 Flash Lite and o1 score almost the same on the Noometry Index (41.5 vs 40.9), so choose on price, context window or the category you care about most.

Which is cheaper, Gemini 3.5 Flash Lite or o1?

Gemini 3.5 Flash Lite is cheaper. It lists at $0.30 per million input tokens and $2.50 per million output tokens; o1 lists at $15 and $60.

Is Gemini 3.5 Flash Lite or o1 better for coding?

o1 scores higher on coding benchmarks: 46.1 versus 42.4 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.5 Flash Lite does, with 1.05M tokens against 200K.

How many benchmarks do Gemini 3.5 Flash Lite and o1 share?

27 benchmarks have published results for both models. Gemini 3.5 Flash Lite has 39 scored results on Noometry and o1 has 52.

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