Noometry

Model comparison

Gemini 3 Deep Think vs GPT-4o

GPT-4o has enough public results to be ranked (#324); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

Last verified . 3 shared benchmarks.

Gemini 3 Deep Think Google

58.3

Unranked Sparse

GPT-4o OpenAI

28.6

Rank #324 Confirmed

Summary

  • They share 3 benchmarks with published results for both. Gemini 3 Deep Think scores higher in 1 category and GPT-4o in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3 Deep Think leads 70.2 to 9.4.
  • The biggest single-benchmark swing is ARC-AGI-1: 96% for Gemini 3 Deep Think and 4.5% for GPT-4o.

Side by side

Gemini 3 Deep ThinkGPT-4o
ProviderGoogleOpenAI
Noometry Index58.328.6
Released2026-02-122024-05-13
WeightsProprietaryProprietary
Context window—128K
Max output—16K
Input $ / M tokens—$2.50
Output $ / M tokens—$10
Results tracked372

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Category by category

Coding Not comparable

Gemini 3 Deep Think: —, GPT-4o: 24.8 (#328)

BenchmarkGemini 3 Deep ThinkGPT-4o
SWE-bench Verified—31%
SWE-bench Verified (bash only)—21.6%
Aider Polyglot—45.3%
GSO—0%
WeirdML—25.1%
BigCodeBench Instruct—51.1%
LiveBench Coding—51.4%
LMArena Coding—1297
BigCodeBench Complete—61.1%
CadEval—26%
HumanEval+—87.2%
MBPP+—72.2%

Agentic & Tool Use Not comparable

Gemini 3 Deep Think: —, GPT-4o: 21.0 (#141)

BenchmarkGemini 3 Deep ThinkGPT-4o
GDPval—9.9%
TheAgentCompany—8.6%
Cybench—12.5%
BALROG—32.3%
LMArena Search—1006
METR Time Horizons—40.8%

Reasoning Gemini 3 Deep Think leads

Gemini 3 Deep Think: 70.2 (#14), GPT-4o: 9.4 (#343)

BenchmarkGemini 3 Deep ThinkGPT-4o
ARC-AGI-284.6%0%
ARC-AGI-196%4.5%
CritPt25.7%0%
SimpleBench—17.8%
Chess Puzzles—13%
EnigmaEval—0.8%
LiveBench Reasoning—55.8%
LMArena Hard Prompts—1281
DTBench—64.5%
LiveBench Data Analysis—60.9%
LMCA—16.6%
Epoch Capabilities Index—128.97
ForecastBench—57.7
LiveBench—55.3%

Math Not comparable

Gemini 3 Deep Think: —, GPT-4o: 10.6 (#312)

BenchmarkGemini 3 Deep ThinkGPT-4o
FrontierMath (Tiers 1-3)—0.4%
OTIS Mock AIME 2024-2025—6.4%
Omni-MATH—29.3%
LiveBench Math—49.5%
LMArena Math—1285
MATH Level 5—53.3%
FrontierMath (Feb 2025 set)—0.3%

Knowledge Not comparable

Gemini 3 Deep Think: —, GPT-4o: 28.8 (#242)

BenchmarkGemini 3 Deep ThinkGPT-4o
GPQA Diamond—49.2%
Humanity's Last Exam—2.7%
SimpleQA Verified—26%
MMLU-Pro—71.3%
Confabulations—15.3%
Vectara Hallucination Rate—9.6%
GPQA (HELM)—52%
LMArena Expert—1250
MMLU—88.1%

Multimodal Not comparable

Gemini 3 Deep Think: —, GPT-4o: 34.5 (#91)

BenchmarkGemini 3 Deep ThinkGPT-4o
LMArena Vision—1137
Video-MME—71.9%
GeoBench—71%
VPCT—40%
ScienceQA—88.5%

Multilingual Not comparable

Gemini 3 Deep Think: —, GPT-4o: 43.2 (#186)

BenchmarkGemini 3 Deep ThinkGPT-4o
LMArena Non-English—1283
LMArena Chinese—1277
LMArena French—1304
LMArena German—1282
LMArena Japanese—1257
LMArena Korean—1234
LMArena Russian—1286
LMArena Spanish—1292

Instruction Following Not comparable

Gemini 3 Deep Think: —, GPT-4o: 66.6 (#207)

BenchmarkGemini 3 Deep ThinkGPT-4o
LiveBench Instruction Following—68.6%
IFEval—81.7%
LMArena Instruction Following—1278

Long Context Not comparable

Gemini 3 Deep Think: —, GPT-4o: 39.4 (#179)

BenchmarkGemini 3 Deep ThinkGPT-4o
Fiction.LiveBench—66.7%
LMArena Longer Query—1289

Writing & Preference Not comparable

Gemini 3 Deep Think: —, GPT-4o: 52.6 (#166)

BenchmarkGemini 3 Deep ThinkGPT-4o
LMArena Text—1300
LMArena Creative Writing—1292
Short-Story Creative Writing—81.8%
WildBench—82.8%
LMArena Multi-Turn—1302
LiveBench Language—47.6%

Frequently asked questions

Is Gemini 3 Deep Think better than GPT-4o?

GPT-4o has enough public results to be ranked (#324); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

How many benchmarks do Gemini 3 Deep Think and GPT-4o share?

3 benchmarks have published results for both models. Gemini 3 Deep Think has 3 scored results on Noometry and GPT-4o has 72.

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