Model Comparison

Gemini 4 Carbon vs Longcat 2.5

Gemini 4 Carbon ranks #2 on the AI IQ leaderboard with an estimated IQ of 142, while Longcat 2.5 ranks #100 on the AI IQ leaderboard with an estimated IQ of 105. 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
Gemini 4 CarbonGoogleLongcat 2.5China (Other)
Rank#2#100
IQ142105
Abstract Reasoning13485
Mathematical Reasoning14794
Academic Reasoning136118
Programmatic Reasoning15099
Computer Use154127
Reliability139107
Knowledge Work134108
Emotional Reasoning——
Effective Cost / 1M Tokens——
Sticker Price / 1M I/O Tokens——
Speed——
Context Window——
Released2026-10-282026-11-02
Open WeightsNoNo