Model Comparison

Intellect 3 vs Opus 5.5

Intellect 3 ranks #147 on the AI IQ leaderboard with an estimated IQ of 95, while Opus 5.5 ranks #2 on the AI IQ leaderboard with an estimated IQ of 141. 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
Domains Head to Head
Applied domain composite scores where at least one model is measured
Intellect 3US (Other)Opus 5.5Anthropic
Rank#147#2
IQ95141
Abstract Reasoning75132
Mathematical Reasoning111149
Academic Reasoning108138
Programmatic Reasoning113154
Computer Use75148
Reliability91133
Knowledge Work90134
Emotional Reasoning——
Effective Cost / 1M Tokens$1.56$35.73
Sticker Price / 1M I/O Tokens$1.30$24.00
Speed—98 tok/s
Context Window131K1M
Released2025-11-262026-09-22
Open WeightsYesNo