Model Comparison

Fable 5.1 vs Kimi K2

Fable 5.1 ranks #6 on the AI IQ leaderboard with an estimated IQ of 137, while Kimi K2 ranks #159 on the AI IQ leaderboard with an estimated IQ of 91. 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 →Kimi K2 profile →

First model Second model

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 5.1Anthropic	Kimi K2Kimi
Rank	#6	#159
IQ	137	91
Abstract Reasoning	124	72
Mathematical Reasoning	147	105
Academic Reasoning	136	103
Programmatic Reasoning	146	100
Computer Use	141	70
Reliability	135	99
Knowledge Work	132	90
Emotional Reasoning	—	—
Effective Cost / 1M Tokens	$91.05	$2.38
Sticker Price / 1M I/O Tokens	$60.00	$2.87
Speed	70 tok/s	46 tok/s
Context Window	1M	—
Released	2026-09-01	2025-07-11
Open Weights	No	Yes

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