Noometry

Model comparison

Gemini 2.5 Pro vs GPT-4.1 nano

Gemini 2.5 Pro is the stronger model overall, scoring 44.9 to 27.7 on the Noometry Index. GPT-4.1 nano costs 20× less per token, which makes it the better buy when Gemini 2.5 Pro's lead doesn't matter for your workload.

Last verified . 36 shared benchmarks.

Gemini 2.5 Pro Google

44.9

Rank #67 Confirmed

GPT-4.1 nano OpenAI

27.7

Rank #322 Confirmed

Summary

  • They share 36 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 10 categories and GPT-4.1 nano in 0 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in long context, where Gemini 2.5 Pro leads 59.7 to 23.7.
  • The biggest single-benchmark swing is Aider Polyglot: 83.1% for Gemini 2.5 Pro and 8.9% for GPT-4.1 nano.
  • GPT-4.1 nano is cheaper at $0.10 / $0.40 per million input/output tokens, against $1.25 / $10 for Gemini 2.5 Pro.
  • Gemini 2.5 Pro accepts more context: 1.05M tokens versus 1.05M.

Side by side

Gemini 2.5 ProGPT-4.1 nano
ProviderGoogleOpenAI
Noometry Index44.927.7
Released2025-03-252025-04-14
WeightsProprietaryProprietary
Context window1.05M1.05M
Max output66K33K
Input $ / M tokens$1.25$0.10
Output $ / M tokens$10$0.40
Results tracked7838

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Category by category

Coding Gemini 2.5 Pro leads

Gemini 2.5 Pro: 42.8 (#86), GPT-4.1 nano: 23.8 (#325)

BenchmarkGemini 2.5 ProGPT-4.1 nano
Aider Polyglot83.1%8.9%
SciCode42.8%25.9%
WeirdML54%19%
LMArena Coding14521306
SWE-bench Verified57.6%—
SWE-bench Verified (bash only)53.6%—
LMArena WebDev1227—
GSO3.9%—
LiveBench Coding85.9%—
CadEval64%—
ALE-Bench785.52—
AlgoTune1.51—

Agentic & Tool Use Gemini 2.5 Pro leads

Gemini 2.5 Pro: 29.1 (#81), GPT-4.1 nano: 26.3 (#98)

BenchmarkGemini 2.5 ProGPT-4.1 nano
Terminal-Bench32.6%—
Berkeley Function Calling Leaderboard—33%
GDPval23.3%—
Remote Labor Index0.8%—
TheAgentCompany30.3%—
τ²-bench Banking13.7%—
DeepResearch Bench42.8%—
BALROG43.3%—
LMArena Search1142—
METR Time Horizons55.4%—
Vending-Bench 2573.64—

Reasoning Gemini 2.5 Pro leads

Gemini 2.5 Pro: 28.8 (#85), GPT-4.1 nano: 8.6 (#344)

BenchmarkGemini 2.5 ProGPT-4.1 nano
ARC-AGI-24.9%0%
Kagi LLM Benchmark70.3%33.3%
ARC-AGI-141%0%
CritPt2%0%
LMArena Hard Prompts14551286
DTBench82.4%52.5%
LMCA34.8%5.5%
Epoch Capabilities Index145.32129.62
SimpleBench62.4%—
Chess Puzzles20%—
EnigmaEval5.6%—
LiveBench Reasoning89.8%—
LiveBench Data Analysis79.9%—
ForecastBench61.3—
LiveBench82.3%—

Math Gemini 2.5 Pro leads

Gemini 2.5 Pro: 31.9 (#191), GPT-4.1 nano: 25.5 (#246)

BenchmarkGemini 2.5 ProGPT-4.1 nano
OTIS Mock AIME 2024-202584.7%28.9%
Omni-MATH41.6%36.7%
LMArena Math14501274
MATH Level 595.9%70%
FrontierMath (Feb 2025 set)14.1%1%
FrontierMath (Tiers 1-3)24.6%—
FrontierMath Tier 40%—
LiveBench Math90.2%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Gemini 2.5 Pro leads

Gemini 2.5 Pro: 55.8 (#41), GPT-4.1 nano: 21.8 (#268)

BenchmarkGemini 2.5 ProGPT-4.1 nano
GPQA Diamond85.3%48.9%
MMLU-Pro86.3%55%
GPQA (HELM)74.9%50.7%
LMArena Expert14521272
Humanity's Last Exam21.6%—
SimpleQA Verified—6%
Confabulations10.6%—
Vectara Hallucination Rate7%—

Multimodal Gemini 2.5 Pro leads

Gemini 2.5 Pro: 44.5 (#16), GPT-4.1 nano: 28.6 (#108)

BenchmarkGemini 2.5 ProGPT-4.1 nano
LMArena Vision12631063
GeoBench86%—
VPCT48%—
LMArena Document1421—
SpatialViz-Bench44.7%—

Multilingual Gemini 2.5 Pro leads

Gemini 2.5 Pro: 55.5 (#30), GPT-4.1 nano: 41.8 (#200)

BenchmarkGemini 2.5 ProGPT-4.1 nano
LMArena Non-English14521260
LMArena Chinese15071270
LMArena German14871288
LMArena Japanese14621199
LMArena Russian14601261
LMArena French1473—
LMArena Korean1435—
LMArena Spanish1473—

Instruction Following Gemini 2.5 Pro leads

Gemini 2.5 Pro: 75.2 (#71), GPT-4.1 nano: 68.0 (#188)

BenchmarkGemini 2.5 ProGPT-4.1 nano
IFEval84%84.3%
LMArena Instruction Following14361267
LiveBench Instruction Following80.6%—

Long Context Gemini 2.5 Pro leads

Gemini 2.5 Pro: 59.7 (#5), GPT-4.1 nano: 23.7 (#291)

BenchmarkGemini 2.5 ProGPT-4.1 nano
Fiction.LiveBench91.7%25%
LMArena Longer Query14491283

Writing & Preference Gemini 2.5 Pro leads

Gemini 2.5 Pro: 63.9 (#60), GPT-4.1 nano: 40.7 (#238)

BenchmarkGemini 2.5 ProGPT-4.1 nano
LMArena Text14581285
LMArena Creative Writing14531260
EQ-Bench Creative Writing1421946
WildBench85.7%81.2%
LMArena Multi-Turn14531277
Short-Story Creative Writing83.8%—
LiveBench Language67.8%—

Frequently asked questions

Is Gemini 2.5 Pro better than GPT-4.1 nano?

Gemini 2.5 Pro is the stronger model overall, scoring 44.9 to 27.7 on the Noometry Index. GPT-4.1 nano costs 20× less per token, which makes it the better buy when Gemini 2.5 Pro's lead doesn't matter for your workload.

Which is cheaper, Gemini 2.5 Pro or GPT-4.1 nano?

GPT-4.1 nano is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Gemini 2.5 Pro lists at $1.25 and $10.

Is Gemini 2.5 Pro or GPT-4.1 nano better for coding?

Gemini 2.5 Pro scores higher on coding benchmarks: 42.8 versus 23.8 in the Noometry coding category.

Which has the bigger context window?

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

How many benchmarks do Gemini 2.5 Pro and GPT-4.1 nano share?

36 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and GPT-4.1 nano has 38.

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