OpenAI CEO Sam Altman keeps heralding GPT-5, the company's latest large language model (LLM), as approaching to human-level intelligence — but when you actually put it to the test, it often turns out to be strikingly dumb, albeit in a verbose way.

Just take a recent experiment conducted by Gary Smith, an economics professor at Pomona College who demonstrated for Mind Matters that GPT-5 became increasingly befuddled when he suggested playing a game of "rotated tic-tac-toe."

The game's design is incredibly simple: the grid is "rotated once, 90-degrees to the right before the game starts," as Smith wrote in a transcript of his exchange with the LLM. Common sense, of course, dictates that this makes zero difference to the game; it's still a three-by-three grid with identical rules.

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