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Model Comparison

Gemini 4 Carbon vs GPT 5.6 Luna

Gemini 4 Carbon ranks #5 on the AI IQ leaderboard with an estimated IQ of 139, while GPT 5.6 Luna ranks #31 on the AI IQ leaderboard with an estimated IQ of 124. 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 Luna 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 LunaOpenAI
Rank#5#31
IQ139124
Abstract Reasoning120104
Mathematical Reasoning145138
Academic Reasoning136129
Programmatic Reasoning153130
Computer Use155126
Reliability135116
Knowledge Work130125
Emotional Reasoning—105
Effective Cost / 1M Tokens—$1.63
Sticker Price / 1M I/O Tokens—$1.40
Speed—126 tok/s
Context Window—1M
Released2026-10-282026-07-09
Open WeightsNoNo
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