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Model Comparison

Grok 2 vs Grok 4

Grok 2 ranks #171 on the AI IQ leaderboard with an estimated IQ of 83, while Grok 4 ranks #132 on the AI IQ leaderboard with an estimated IQ of 99. The table below puts the two models side by side across the seven capability dimensions, emotional reasoning, cost, speed, and context window.

Grok 2 profile →Grok 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
Grok 2xAIGrok 4xAI
Rank#171#132
IQ8399
Abstract Reasoning7087
Mathematical Reasoning88103
Academic Reasoning100118
Programmatic Reasoning98110
Computer Use7075
Reliability75112
Knowledge Work7990
Emotional Reasoning—99
Effective Cost / 1M Tokens—$34.90
Sticker Price / 1M I/O Tokens—$18.00
Speed—78 tok/s
Context Window——
Released2024-08-142025-07-09
Open WeightsNoNo
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