Model Comparison

Kat Coder Pro V1 vs Opus 5.5

Kat Coder Pro V1 ranks #109 on the AI IQ leaderboard with an estimated IQ of 103, 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
Kat Coder Pro V1China (Other)Opus 5.5Anthropic
Rank#109#2
IQ103141
Abstract Reasoning77132
Mathematical Reasoning115149
Academic Reasoning111138
Programmatic Reasoning111154
Computer Use101148
Reliability101133
Knowledge Work107134
Emotional Reasoning——
Effective Cost / 1M Tokens$1.27$35.73
Sticker Price / 1M I/O Tokens$1.50$24.00
Speed61 tok/s98 tok/s
Context Window256K1M
Released—2026-09-22
Open WeightsNoNo