AI models can now win gold at the International Mathematical Olympiad, yet Stanford's 2026 AI Index found they still fumble a task most children master early. Across ClockBench's 180 clock designs and 720 questions, the top model, GPT-5.4 High, read analog clocks correctly only 50.6% of the time, versus 90.1% for humans
Stanford's AI Index 2026 report notes that AI models still struggle with some basic tasks. On ClockBench, which uses 180 clock designs and 720 questions, the top model, GPT-5.4 High, read analog clocks correctly 50.6% of the time in March 2026. Humans got 90.1% right on the same task.
Verified 2026-09-08
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Strong scores on hard tests do not guarantee common sense, so treat headline benchmark wins with some care.
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