Noometry

Model comparison

Gemini 3.5 Flash Lite vs GPT-4o mini

Gemini 3.5 Flash Lite is the stronger model overall, scoring 41.5 to 25.5 on the Noometry Index. GPT-4o mini costs 3.2× less per token, which makes it the better buy when Gemini 3.5 Flash Lite's lead doesn't matter for your workload.

Last verified . 29 shared benchmarks.

Gemini 3.5 Flash Lite Google

41.5

Rank #133 Confirmed

GPT-4o mini OpenAI

25.5

Rank #343 Confirmed

Summary

  • They share 29 benchmarks with published results for both. Gemini 3.5 Flash Lite scores higher in 9 categories and GPT-4o mini in 1 category; 10 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 3.5 Flash Lite leads 50.1 to 17.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 71.1% for Gemini 3.5 Flash Lite and 6.9% for GPT-4o mini.
  • GPT-4o mini is cheaper at $0.15 / $0.60 per million input/output tokens, against $0.30 / $2.50 for Gemini 3.5 Flash Lite.
  • Gemini 3.5 Flash Lite accepts more context: 1.05M tokens versus 128K.

Side by side

Gemini 3.5 Flash LiteGPT-4o mini
ProviderGoogleOpenAI
Noometry Index41.525.5
Released2026-07-212024-07-18
WeightsProprietaryProprietary
Context window1.05M128K
Max output66K16K
Input $ / M tokens$0.30$0.15
Output $ / M tokens$2.50$0.60
Results tracked3960

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Category by category

Coding Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 42.4 (#104), GPT-4o mini: 22.0 (#335)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
WeirdML39%11.8%
LMArena Coding14531290
Aider Polyglot—3.6%
LMArena WebDev1440—
SciCode41.3%—
BigCodeBench Instruct—46.1%
LiveBench Coding—43.1%
BigCodeBench Complete—57.4%
ALE-Bench765.27—
HumanEval+—83.5%
MBPP+—72.2%

Agentic & Tool Use GPT-4o mini leads

Gemini 3.5 Flash Lite: 25.7 (#107), GPT-4o mini: 27.5 (#101)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
APEX-Agents29.3%—
BALROG—17.4%
GDP.pdf10%—

Reasoning Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 27.8 (#114), GPT-4o mini: 8.7 (#347)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
ARC-AGI-210.3%0%
Chess Puzzles22%0%
LMArena Hard Prompts14411267
Mystery Game Puzzles19%12%
DTBench83.5%54.4%
LMCA37.6%10.4%
Epoch Capabilities Index145.13126.56
SimpleBench—10.7%
Kagi LLM Benchmark—28.8%
NYT Connections (extended)60.4%—
ARC-AGI-153.5%—
CritPt0%—
LiveBench Reasoning—32.8%
LiveBench Data Analysis—50%
LiveBench—41.3%
PIQA—88.7%

Math Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 25.9 (#264), GPT-4o mini: 10.4 (#314)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
FrontierMath (Tiers 1-3)26%0.7%
OTIS Mock AIME 2024-202571.1%6.9%
LMArena Math14331267
FrontierMath Tier 40%—
ProofBench13%—
Omni-MATH—28%
LiveBench Math—36.3%
MATH Level 5—52.6%
GSM8K—91.3%

Knowledge Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 50.1 (#72), GPT-4o mini: 17.7 (#284)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
GPQA Diamond83.3%37.7%
LMArena Expert14351235
SimpleQA Verified—8.3%
MMLU-Pro—60.3%
Confabulations—37.2%
GPQA (HELM)—36.8%
BoolQ—88.7%
MMLU—81.8%

Multimodal Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 41.1 (#40), GPT-4o mini: 25.9 (#122)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
LMArena Vision12681066
Video-MME—64.8%
GeoBench—64%
VPCT—34%

Multilingual Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 53.5 (#63), GPT-4o mini: 42.0 (#199)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
LMArena Non-English14271266
LMArena Chinese14691265
LMArena French14511297
LMArena German14541272
LMArena Japanese14271216
LMArena Korean14071195
LMArena Russian14431275
LMArena Spanish14421276

Instruction Following Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 74.8 (#85), GPT-4o mini: 61.9 (#239)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
LMArena Instruction Following14201258
LiveBench Instruction Following—56.8%
IFEval—78.2%

Long Context Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 43.9 (#84), GPT-4o mini: 39.1 (#186)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
LMArena Longer Query14351289

Writing & Preference Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 64.2 (#57), GPT-4o mini: 39.5 (#248)

BenchmarkGemini 3.5 Flash LiteGPT-4o mini
LMArena Text14351286
LMArena Creative Writing14201268
EQ-Bench Creative Writing1559873
LMArena Multi-Turn14451285
Short-Story Creative Writing—67.2%
WildBench—79.1%
LiveBench Language—28.6%

Frequently asked questions

Is Gemini 3.5 Flash Lite better than GPT-4o mini?

Gemini 3.5 Flash Lite is the stronger model overall, scoring 41.5 to 25.5 on the Noometry Index. GPT-4o mini costs 3.2× less per token, which makes it the better buy when Gemini 3.5 Flash Lite's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.5 Flash Lite or GPT-4o mini?

GPT-4o mini is cheaper. It lists at $0.15 per million input tokens and $0.60 per million output tokens; Gemini 3.5 Flash Lite lists at $0.30 and $2.50.

Is Gemini 3.5 Flash Lite or GPT-4o mini better for coding?

Gemini 3.5 Flash Lite scores higher on coding benchmarks: 42.4 versus 22.0 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.5 Flash Lite does, with 1.05M tokens against 128K.

How many benchmarks do Gemini 3.5 Flash Lite and GPT-4o mini share?

29 benchmarks have published results for both models. Gemini 3.5 Flash Lite has 39 scored results on Noometry and GPT-4o mini has 60.

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