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Model Comparison

Grok 4.5 vs Muse Spark Open

Grok 4.5 ranks #35 on the AI IQ leaderboard with an estimated IQ of 122, while Muse Spark Open ranks #37 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.

Grok 4.5 profile →Muse Spark Open 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 4.5xAIMuse Spark OpenMeta
Rank#35#37
IQ122122
Abstract Reasoning104102
Mathematical Reasoning125130
Academic Reasoning130130
Programmatic Reasoning126126
Computer Use124118
Reliability125126
Knowledge Work124124
Emotional Reasoning——
Effective Cost / 1M Tokens$6.20—
Sticker Price / 1M I/O Tokens$8.00—
Speed60 tok/s103 tok/s
Context Window500K1M
Released2026-07-082026-10-15
Open WeightsNoYes
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