AI IQ
Subscribe
Model Comparison

Gemini 4 Carbon vs GPT 5.4

Gemini 4 Carbon ranks #5 on the AI IQ leaderboard with an estimated IQ of 139, while GPT 5.4 ranks #39 on the AI IQ leaderboard with an estimated IQ of 122. 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 5.4 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 5.4OpenAI
Rank#5#39
IQ139122
Abstract Reasoning120112
Mathematical Reasoning145128
Academic Reasoning136128
Programmatic Reasoning153125
Computer Use155122
Reliability135119
Knowledge Work130120
Emotional Reasoning—114
Effective Cost / 1M Tokens—$20.47
Sticker Price / 1M I/O Tokens—$17.50
Speed—102 tok/s
Context Window——
Released2026-10-282026-03-05
Open WeightsNoNo
More comparisons