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Model Comparison

Gemini 4 Carbon vs GPT 4.5

Gemini 4 Carbon ranks #5 on the AI IQ leaderboard with an estimated IQ of 139, while GPT 4.5 ranks #174 on the AI IQ leaderboard with an estimated IQ of 82. The table below puts the two models side by side across the seven capability dimensions, emotional reasoning, cost, speed, and context window.

Gemini 4 Carbon profile →GPT 4.5 profile →
Where They Sit on the IQ Bell Curve
Both models highlighted on the standard normal IQ distribution of every tracked model
IQ Dimensions Head to Head
The seven scored Composite IQ dimensions, side by side
Domains Head to Head
Applied domain composite scores where at least one model is measured
Gemini 4 CarbonGoogleGPT 4.5OpenAI
Rank#5#174
IQ13982
Abstract Reasoning12071
Mathematical Reasoning14570
Academic Reasoning136119
Programmatic Reasoning15378
Computer Use15570
Reliability13584
Knowledge Work13084
Emotional Reasoning——
Effective Cost / 1M Tokens——
Sticker Price / 1M I/O Tokens——
Speed——
Context Window—128K
Released2026-10-282025-02-27
Open WeightsNoNo
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