Model Comparison

Gemini 4 Carbon vs Gemma 4 E4b

Gemini 4 Carbon ranks #5 on the AI IQ leaderboard with an estimated IQ of 139, while Gemma 4 E4b ranks #163 on the AI IQ leaderboard with an estimated IQ of 88. 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 CarbonGoogleGemma 4 E4bGoogle
Rank#5#163
IQ13988
Abstract Reasoning12082
Mathematical Reasoning14577
Academic Reasoning13696
Programmatic Reasoning15399
Computer Use15570
Reliability13597
Knowledge Work13093
Emotional Reasoning——
Effective Cost / 1M Tokens—$0.03
Sticker Price / 1M I/O Tokens—$0.12
Speed—47 tok/s
Context Window—128K
Released2026-10-282026-04-02
Open WeightsNoYes