An Exam for AI Scientists express

Original: "COMPOSITE-Stem"
arXiv:2604.09836 · 2026-04-10 · CC BY 4.0 · 1 min
70 problems from physics, chemistry, biology, and math that no current model can solve.

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The best AI assistant for scientists scored worse on this exam than a C student on a pop quiz. Just 21% correct answers, and that's the ceiling for the four strongest models. The problems for the new test were written not by programmers but by graduate students: people who deal with real science every day.

The test is called COMPOSITE-STEM. It contains 70 problems in physics, biology, chemistry, and math. Unlike school problems, there's no single right answer — the reasoning itself is evaluated. For example, you don't just compute a number; you explain why you chose that method. Grading is done two ways: exact answer matching and a jury of another language model.

It's like asking a robot chef not just to bake a pie from a recipe, but to invent a new recipe, explain why it's delicious, and convince a panel of head chefs. So far, it's not going great.

The results are sobering: even the best model solves only one in five problems. That means AI is still far from being a true research assistant. But the test is open to everyone — any developer can check their model and try to beat the score.

The test problems were collected from graduate students: those who still remember what it's like to sit over an equation until late at night, doubting every step.

Scientists
Andrey Markov
Concepts
benchmark artificial intelligence ai scientific assistant agent ai drug discovery quantum assistant automated analysis frame automation classical limit robot Percentile labeled data classifier information criterion transformers hybrid algorithm IRI quantum algorithm speech recognition