Model Comparison

Gemini 4 Carbon vs Mercury 3

Gemini 4 Carbon ranks #5 on the AI IQ leaderboard with an estimated IQ of 139, while Mercury 3 ranks #138 on the AI IQ leaderboard with an estimated IQ of 98. The table below puts the two models side by side across the seven capability dimensions, emotional reasoning, cost, speed, and context window.

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
Gemini 4 CarbonGoogleMercury 3US (Other)
Rank#5#138
IQ13998
Abstract Reasoning12082
Mathematical Reasoning14596
Academic Reasoning136107
Programmatic Reasoning15399
Computer Use15595
Reliability135110
Knowledge Work13099
Emotional Reasoning——
Effective Cost / 1M Tokens—$0.40
Sticker Price / 1M I/O Tokens—$0.90
Speed——
Context Window—1M
Released2026-10-282026-10-19
Open WeightsNoNo