Model Comparison

Fable 5.2 vs Gemma 4 E4b

Fable 5.2 ranks #1 on the AI IQ leaderboard with an estimated IQ of 144, while Gemma 4 E4b ranks #167 on the AI IQ leaderboard with an estimated IQ of 88. 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 5.2AnthropicGemma 4 E4bGoogle
Rank#1#167
IQ14488
Abstract Reasoning13482
Mathematical Reasoning14879
Academic Reasoning13596
Programmatic Reasoning15499
Computer Use15770
Reliability14597
Knowledge Work13493
Emotional Reasoning——
Effective Cost / 1M Tokens$73.69$0.03
Sticker Price / 1M I/O Tokens$48.00$0.12
Speed—47 tok/s
Context Window1M128K
Released2026-11-092026-04-02
Open WeightsNoYes