AI vs. logic puzzles, part two

A little over a year ago, I experimented with seeing is the current AI models could do logic puzzles. I used to do these kind of puzzles often when I was a kid, in the pre-interweb era.

At the time I tested them, they all failed to solve the puzzles correctly.

Fast forward to today, and the release of Anthropic’s Claude Fable model.

I gave Fable the same logic puzzle that the earlier Claude model failed.


Here is my initial prompt. Took less than a minute for Fable to respond.


The answer was correct and even presented in a nice table. It even brags a little about it’s speed.

This kind of reasoning is difficult and this is a marked improvement from the last test.

LLMs still have a lot of issues with guessing, going down rabbit holes, and not sticking to Occam’s Razor, but improvements in this kind of reasoning is impressive.

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