Noometry

Model comparison

Gemini 2.5 Pro vs GPT-5.2

GPT-5.2 is the stronger model overall, scoring 54.1 to 44.9 on the Noometry Index.

Last verified . 54 shared benchmarks.

Gemini 2.5 Pro Google

44.9

Rank #67 Confirmed

GPT-5.2 OpenAI

54.1

Rank #31 Confirmed

Summary

  • They share 54 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 3 categories and GPT-5.2 in 7 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.2 leads 59.8 to 31.9.
  • The biggest single-benchmark swing is ARC-AGI-2: 4.9% for Gemini 2.5 Pro and 52.9% for GPT-5.2.
  • Gemini 2.5 Pro is cheaper at $1.25 / $10 per million input/output tokens, against $1.75 / $14 for GPT-5.2.
  • Gemini 2.5 Pro accepts more context: 1.05M tokens versus 400K.

Side by side

Gemini 2.5 ProGPT-5.2
ProviderGoogleOpenAI
Noometry Index44.954.1
Released2025-03-252025-12-11
WeightsProprietaryProprietary
Context window1.05M400K
Max output66K128K
Input $ / M tokens$1.25$1.75
Output $ / M tokens$10$14
Results tracked7867

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Category by category

Coding GPT-5.2 leads

Gemini 2.5 Pro: 42.8 (#86), GPT-5.2: 52.2 (#32)

BenchmarkGemini 2.5 ProGPT-5.2
SWE-bench Verified57.6%73.8%
SWE-bench Verified (bash only)53.6%72.8%
LMArena WebDev12271415
GSO3.9%27.4%
WeirdML54%72.2%
LMArena Coding14521447
ALE-Bench785.521,294
AlgoTune1.512.05
Aider Polyglot83.1%—
SWE-bench Multilingual—66.7%
SciCode42.8%—
LiveBench Coding85.9%—
CadEval64%—

Agentic & Tool Use GPT-5.2 leads

Gemini 2.5 Pro: 29.1 (#81), GPT-5.2: 40.0 (#24)

BenchmarkGemini 2.5 ProGPT-5.2
Terminal-Bench32.6%64.9%
GDPval23.3%49.7%
Remote Labor Index0.8%2.5%
τ²-bench Banking13.7%32.2%
DeepResearch Bench42.8%41.1%
LMArena Search11421207
METR Time Horizons55.4%75.3%
Vending-Bench 2573.643,591
Berkeley Function Calling Leaderboard—55.9%
TheAgentCompany30.3%—
τ²-bench Airline—83%
τ²-bench Retail—81.6%
τ²-bench Telecom—89.7%
BALROG43.3%—

Reasoning GPT-5.2 leads

Gemini 2.5 Pro: 28.8 (#85), GPT-5.2: 50.1 (#33)

BenchmarkGemini 2.5 ProGPT-5.2
ARC-AGI-24.9%52.9%
SimpleBench62.4%45.8%
Kagi LLM Benchmark70.3%73.3%
ARC-AGI-141%86.2%
Chess Puzzles20%49%
EnigmaEval5.6%10.4%
LMArena Hard Prompts14551445
DTBench82.4%90.9%
LMCA34.8%43.9%
Epoch Capabilities Index145.32153.45
ForecastBench61.360.1
NYT Connections (extended)—83.6%
CritPt2%—
EBR-Bench—23%
LiveBench Reasoning89.8%—
Mystery Game Puzzles—23%
LiveBench Data Analysis79.9%—
LiveBench82.3%—

Math GPT-5.2 leads

Gemini 2.5 Pro: 31.9 (#191), GPT-5.2: 59.8 (#32)

BenchmarkGemini 2.5 ProGPT-5.2
FrontierMath (Tiers 1-3)24.6%67.4%
FrontierMath Tier 40%31.7%
OTIS Mock AIME 2024-202584.7%96.1%
LMArena Math14501439
FrontierMath (Feb 2025 set)14.1%40.7%
FrontierMath Tier 4 (v1)4.2%18.8%
MathArena Final-Answer Competitions—72%
ProofBench—15%
Omni-MATH41.6%—
LiveBench Math90.2%—
MATH Level 595.9%—

Knowledge GPT-5.2 leads

Gemini 2.5 Pro: 55.8 (#41), GPT-5.2: 59.2 (#29)

BenchmarkGemini 2.5 ProGPT-5.2
GPQA Diamond85.3%91.4%
Humanity's Last Exam21.6%27.8%
Vectara Hallucination Rate7%8.4%
LMArena Expert14521445
SimpleQA Verified—37.1%
MMLU-Pro86.3%—
Confabulations10.6%—
GPQA (HELM)74.9%—

Multimodal GPT-5.2 leads

Gemini 2.5 Pro: 44.5 (#16), GPT-5.2: 50.9 (#7)

BenchmarkGemini 2.5 ProGPT-5.2
LMArena Vision12631268
VPCT48%84%
LMArena Document14211405
GeoBench86%—
Furniture Assembly—38.3%
SpatialViz-Bench44.7%—

Multilingual Gemini 2.5 Pro leads

Gemini 2.5 Pro: 55.5 (#30), GPT-5.2: 53.6 (#63)

BenchmarkGemini 2.5 ProGPT-5.2
LMArena Non-English14521425
LMArena Chinese15071460
LMArena French14731456
LMArena German14871448
LMArena Japanese14621421
LMArena Korean14351390
LMArena Russian14601440
LMArena Spanish14731433

Instruction Following Too close to call

Gemini 2.5 Pro: 75.2 (#71), GPT-5.2: 74.9 (#83)

BenchmarkGemini 2.5 ProGPT-5.2
LMArena Instruction Following14361417
LiveBench Instruction Following80.6%—
IFEval84%—

Long Context Gemini 2.5 Pro leads

Gemini 2.5 Pro: 59.7 (#5), GPT-5.2: 44.0 (#74)

BenchmarkGemini 2.5 ProGPT-5.2
LMArena Longer Query14491428
Fiction.LiveBench91.7%—
CL-bench—18.2%

Writing & Preference GPT-5.2 leads

Gemini 2.5 Pro: 63.9 (#60), GPT-5.2: 67.0 (#30)

BenchmarkGemini 2.5 ProGPT-5.2
LMArena Text14581439
LMArena Creative Writing14531402
EQ-Bench Creative Writing14211703
LMArena Multi-Turn14531458
Short-Story Creative Writing83.8%—
WildBench85.7%—
LiveBench Language67.8%—

Frequently asked questions

Is Gemini 2.5 Pro better than GPT-5.2?

GPT-5.2 is the stronger model overall, scoring 54.1 to 44.9 on the Noometry Index.

Which is cheaper, Gemini 2.5 Pro or GPT-5.2?

Gemini 2.5 Pro is cheaper. It lists at $1.25 per million input tokens and $10 per million output tokens; GPT-5.2 lists at $1.75 and $14.

Is Gemini 2.5 Pro or GPT-5.2 better for coding?

GPT-5.2 scores higher on coding benchmarks: 52.2 versus 42.8 in the Noometry coding category.

Which has the bigger context window?

Gemini 2.5 Pro does, with 1.05M tokens against 400K.

How many benchmarks do Gemini 2.5 Pro and GPT-5.2 share?

54 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and GPT-5.2 has 67.

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