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Gemini 3.1 Pro vs GPT-5.2

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Gemini 3.1 ProGPT-5.2
AttributeGemini 3.1 ProGoogle DeepMind · 3 in the newsGPT-5.2OpenAI · 7 in the news
Scores
Intelligence (ECI)155154
Coding6268
Math7279
Reasoning & Knowledge9460
Agentic & Tools8174
Specifications
DeveloperGoogle DeepMindOpenAI
FamilyGeminiGPT
ReleasedFeb 19, 2026Dec 11, 2025
Parameters
AvailabilityAPI accessAPI access
Context window400K
Price — $/M input$1.75
Price — $/M output$14.00
Inputsfile, image, text
Outputstext
Benchmarks
AIME 2024/202596%96%
APEX34%34%
ARC-AGI98%86%
ARC-AGI-277%53%
FrontierMath37%41%
FrontierMath Tier 417%19%
GPQA Diamond94%91%
GSO (code optimization)23%27%
Humanity's Last Exam46%28%
METR task horizon6.4 h5.9 h
SimpleBench80%46%
SimpleQA Verified77%39%
SWE-bench Verified76%74%
Terminal-Bench80%65%
WebDev Arena14611480
WeirdML72%72%
GDPval (win/tie rate)71%
LiveCodeBench89%
MMLU-Pro87%
SciCode52%
τ²-bench85%

Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.

Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.