Model Comparison

Fable 5.2 vs Nanbeige 4.3 33b

Fable 5.2 ranks #1 on the AI IQ leaderboard with an estimated IQ of 144, while Nanbeige 4.3 33b does not yet have a derived IQ. 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
Fable 5.2AnthropicNanbeige 4.3 33bChina (Other)
Rank#1—
IQ144—
Abstract Reasoning13499
Mathematical Reasoning148—
Academic Reasoning135100
Programmatic Reasoning154—
Computer Use157—
Reliability145—
Knowledge Work134—
Emotional Reasoning——
Effective Cost / 1M Tokens$73.69—
Sticker Price / 1M I/O Tokens$48.00—
Speed——
Context Window1M524K
Released2026-11-092026-10-25
Open WeightsNoYes