Noometry

Model comparison

Gemini 2.5 Pro vs GPT-4o

Gemini 2.5 Pro is the stronger model overall, scoring 45.0 to 28.6 on the Noometry Index.

Last verified . 63 shared benchmarks.

Gemini 2.5 Pro Google

45.0

Rank #75 Confirmed

GPT-4o OpenAI

28.6

Rank #324 Confirmed

Summary

  • They share 63 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 10 categories and GPT-4o in 0 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 2.5 Pro leads 56.0 to 28.8.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 84.7% for Gemini 2.5 Pro and 6.4% for GPT-4o.
  • Gemini 2.5 Pro is cheaper at $1.25 / $10 per million input/output tokens, against $2.50 / $10 for GPT-4o.
  • Gemini 2.5 Pro accepts more context: 1.05M tokens versus 128K.

Side by side

Gemini 2.5 ProGPT-4o
ProviderGoogleOpenAI
Noometry Index45.028.6
Released2025-03-252024-05-13
WeightsProprietaryProprietary
Context window1.05M128K
Max output66K16K
Input $ / M tokens$1.25$2.50
Output $ / M tokens$10$10
Results tracked7872

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Category by category

Coding Gemini 2.5 Pro leads

Gemini 2.5 Pro: 42.4 (#101), GPT-4o: 24.8 (#328)

BenchmarkGemini 2.5 ProGPT-4o
SWE-bench Verified57.6%31%
SWE-bench Verified (bash only)53.6%21.6%
Aider Polyglot83.1%45.3%
GSO3.9%0%
WeirdML54%25.1%
LiveBench Coding85.9%51.4%
LMArena Coding14521297
CadEval64%26%
LMArena WebDev1227—
SciCode42.8%—
BigCodeBench Instruct—51.1%
BigCodeBench Complete—61.1%
ALE-Bench785.52—
AlgoTune1.51—
HumanEval+—87.2%
MBPP+—72.2%

Agentic & Tool Use Gemini 2.5 Pro leads

Gemini 2.5 Pro: 29.2 (#88), GPT-4o: 21.0 (#141)

BenchmarkGemini 2.5 ProGPT-4o
GDPval23.3%9.9%
TheAgentCompany30.3%8.6%
BALROG43.3%32.3%
LMArena Search11421006
METR Time Horizons55.4%40.8%
Terminal-Bench32.6%—
Remote Labor Index0.8%—
τ²-bench Banking13.7%—
Cybench—12.5%
DeepResearch Bench42.8%—
Vending-Bench 2573.64—

Reasoning Gemini 2.5 Pro leads

Gemini 2.5 Pro: 28.8 (#99), GPT-4o: 9.4 (#343)

BenchmarkGemini 2.5 ProGPT-4o
ARC-AGI-24.9%0%
SimpleBench62.4%17.8%
ARC-AGI-141%4.5%
CritPt2%0%
Chess Puzzles20%13%
EnigmaEval5.6%0.8%
LiveBench Reasoning89.8%55.8%
LMArena Hard Prompts14551281
DTBench82.4%64.5%
LiveBench Data Analysis79.9%60.9%
LMCA34.8%16.6%
Epoch Capabilities Index145.32128.97
ForecastBench61.357.7
LiveBench82.3%55.3%
Kagi LLM Benchmark70.3%—

Math Gemini 2.5 Pro leads

Gemini 2.5 Pro: 32.5 (#213), GPT-4o: 10.6 (#312)

BenchmarkGemini 2.5 ProGPT-4o
FrontierMath (Tiers 1-3)24.6%0.4%
OTIS Mock AIME 2024-202584.7%6.4%
Omni-MATH41.6%29.3%
LiveBench Math90.2%49.5%
LMArena Math14501285
MATH Level 595.9%53.3%
FrontierMath (Feb 2025 set)14.1%0.3%
FrontierMath Tier 40%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Gemini 2.5 Pro leads

Gemini 2.5 Pro: 56.0 (#46), GPT-4o: 28.8 (#242)

BenchmarkGemini 2.5 ProGPT-4o
GPQA Diamond85.3%49.2%
Humanity's Last Exam21.6%2.7%
MMLU-Pro86.3%71.3%
Confabulations10.6%15.3%
Vectara Hallucination Rate7%9.6%
GPQA (HELM)74.9%52%
LMArena Expert14521250
SimpleQA Verified—26%
MMLU—88.1%

Multimodal Gemini 2.5 Pro leads

Gemini 2.5 Pro: 45.2 (#18), GPT-4o: 34.5 (#91)

BenchmarkGemini 2.5 ProGPT-4o
LMArena Vision12631137
GeoBench86%71%
VPCT48%40%
Video-MME—71.9%
LMArena Document1421—
ScienceQA—88.5%
SpatialViz-Bench44.7%—

Multilingual Gemini 2.5 Pro leads

Gemini 2.5 Pro: 55.3 (#31), GPT-4o: 43.2 (#186)

BenchmarkGemini 2.5 ProGPT-4o
LMArena Non-English14511283
LMArena Chinese15071277
LMArena French14721304
LMArena German14871282
LMArena Japanese14611257
LMArena Korean14341234
LMArena Russian14611286
LMArena Spanish14731292

Instruction Following Gemini 2.5 Pro leads

Gemini 2.5 Pro: 75.0 (#75), GPT-4o: 66.6 (#207)

BenchmarkGemini 2.5 ProGPT-4o
LiveBench Instruction Following80.6%68.6%
IFEval84%81.7%
LMArena Instruction Following14371278

Long Context Gemini 2.5 Pro leads

Gemini 2.5 Pro: 59.8 (#5), GPT-4o: 39.4 (#179)

BenchmarkGemini 2.5 ProGPT-4o
Fiction.LiveBench91.7%66.7%
LMArena Longer Query14491289

Writing & Preference Gemini 2.5 Pro leads

Gemini 2.5 Pro: 63.7 (#62), GPT-4o: 52.6 (#166)

BenchmarkGemini 2.5 ProGPT-4o
LMArena Text14581300
LMArena Creative Writing14541292
Short-Story Creative Writing83.8%81.8%
WildBench85.7%82.8%
LMArena Multi-Turn14531302
LiveBench Language67.8%47.6%
EQ-Bench Creative Writing1421—

Frequently asked questions

Is Gemini 2.5 Pro better than GPT-4o?

Gemini 2.5 Pro is the stronger model overall, scoring 45.0 to 28.6 on the Noometry Index.

Which is cheaper, Gemini 2.5 Pro or GPT-4o?

Gemini 2.5 Pro is cheaper. It lists at $1.25 per million input tokens and $10 per million output tokens; GPT-4o lists at $2.50 and $10.

Is Gemini 2.5 Pro or GPT-4o better for coding?

Gemini 2.5 Pro scores higher on coding benchmarks: 42.4 versus 24.8 in the Noometry coding category.

Which has the bigger context window?

Gemini 2.5 Pro does, with 1.05M tokens against 128K.

How many benchmarks do Gemini 2.5 Pro and GPT-4o share?

63 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and GPT-4o has 72.

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