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Model Comparison

Mercury 2.5 vs Mercury 3

Mercury 2.5 ranks #123 on the AI IQ leaderboard with an estimated IQ of 100, while Mercury 3 ranks #135 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.

Mercury 2.5 profile →Mercury 3 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
Mercury 2.5US (Other)Mercury 3US (Other)
Rank#123#135
IQ10098
Abstract Reasoning9182
Mathematical Reasoning9696
Academic Reasoning107107
Programmatic Reasoning9999
Computer Use9595
Reliability110110
Knowledge Work9999
Emotional Reasoning——
Effective Cost / 1M Tokens$0.42$0.40
Sticker Price / 1M I/O Tokens$0.95$0.90
Speed767 tok/s—
Context Window260K1M
Released2026-09-082026-10-19
Open WeightsNoNo
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