Model Comparison

Fable 5 vs GPT 6 Astra

Fable 5 ranks #10 on the AI IQ leaderboard with an estimated IQ of 133, while GPT 6 Astra ranks #4 on the AI IQ leaderboard with an estimated IQ of 140. 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 5AnthropicGPT 6 AstraOpenAI
Rank#10#4
IQ133140
Abstract Reasoning122136
Mathematical Reasoning143149
Academic Reasoning134134
Programmatic Reasoning141151
Computer Use135140
Reliability129136
Knowledge Work130133
Emotional Reasoning128—
Effective Cost / 1M Tokens$87.06$34.14
Sticker Price / 1M I/O Tokens$60.00$60.00
Speed71 tok/s69 tok/s
Context Window1M1.1M
Released2026-06-092026-09-03
Open WeightsNoNo