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Model Comparison

Fable 5.1 vs Gemini 3.5 Flash

Fable 5.1 ranks #5 on the AI IQ leaderboard with an estimated IQ of 137, while Gemini 3.5 Flash ranks #43 on the AI IQ leaderboard with an estimated IQ of 120. The table below puts the two models side by side across the seven capability dimensions, emotional reasoning, cost, speed, and context window.

Fable 5.1 profile →Gemini 3.5 Flash profile →
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 5.1AnthropicGemini 3.5 FlashGoogle
Rank#5#43
IQ137120
Abstract Reasoning124112
Mathematical Reasoning148124
Academic Reasoning136130
Programmatic Reasoning147114
Computer Use140122
Reliability135121
Knowledge Work133122
Emotional Reasoning—95
Effective Cost / 1M Tokens$90.82$9.05
Sticker Price / 1M I/O Tokens$60.00$10.50
Speed68 tok/s209 tok/s
Context Window1M1M
Released2026-09-012026-05-18
Open WeightsNoNo
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