Model Comparison

Fable 5.1 vs Qwen3.8 2.4t A95b

Fable 5.1 ranks #5 on the AI IQ leaderboard with an estimated IQ of 137, while Qwen3.8 2.4t A95b ranks #32 on the AI IQ leaderboard with an estimated IQ of 123. 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 5.1AnthropicQwen3.8 2.4t A95bAlibaba
Rank#5#32
IQ137123
Abstract Reasoning12499
Mathematical Reasoning148125
Academic Reasoning136131
Programmatic Reasoning147132
Computer Use140127
Reliability135118
Knowledge Work133126
Emotional Reasoning——
Effective Cost / 1M Tokens$90.82$13.22
Sticker Price / 1M I/O Tokens$60.00$8.00
Speed68 tok/s38 tok/s
Context Window1M1.0M
Released2026-09-012026-08-08
Open WeightsNoYes