Challenge: Can You Tell Which Claude Model Wrote Which Answer?

goldgravenstein · reddit · 2026-08-08

A Reddit user launched a fun blind test: asking the four latest Claude models the same question, “What’s your favorite number and why?” and challenging readers to identify the models based purely on writing style.

The four models provided deeply mathematical responses:

e (Euler's number): Highlighted its natural emergence across unrelated problems like compound interest and calculus.
Chaitin's constant (Ω): Discussed the halting probability that is well-defined but permanently uncomputable.
6: The smallest perfect number, serving as a doorway to ancient unsolved mysteries.
1/φ: Explored the recursive self-reference and mathematical elegance of the inverse golden ratio.

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Challenge: Can You Tell Which Claude Model Wrote Which Answer?

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