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Model Comparison

Gemini 4 Carbon vs GPT 5.6 Terra

Gemini 4 Carbon ranks #2 on the AI IQ leaderboard with an estimated IQ of 142, while GPT 5.6 Terra ranks #17 on the AI IQ leaderboard with an estimated IQ of 130. 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 5.6 Terra 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 5.6 TerraOpenAI
Rank#2#17
IQ142130
Abstract Reasoning134119
Mathematical Reasoning147141
Academic Reasoning136129
Programmatic Reasoning150145
Computer Use154128
Reliability139118
Knowledge Work134128
Emotional Reasoning—117
Effective Cost / 1M Tokens—$13.78
Sticker Price / 1M I/O Tokens—$14.00
Speed—135 tok/s
Context Window—1M
Released2026-10-282026-07-09
Open WeightsNoNo
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