A fun riddle I was shocked to see the gippities solve without extended thinking or much yapping, even. I gave up on the third!
Here’s the riddle, as stated to Opus 4.6 on an empty context window. “Consider single-word-name countries. An inclusive pair is when the name of one country is contained in another wholly. There are three such pairs. Find them.”
I was surprised not only by how quickly it solved it, but also by the lack of thinking tokens. Gemini 3.1 Fast also did it. And by the unusual order in which the solutions were produced, in the exact reverse order most people find them.
(Answer below)
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OpenAI models (particularly 5-thinking) have long had a fetish for jargon, cramming their sentences as full of it as the situation allows (and sometimes fuller).