AI Helps Crack an 87-Year-Old Math Conjecture With One Tiny Formula

A mathematician at Anthropic used Claude Fable 5 to find a simple three-dimensional polynomial counterexample to the Jacobian conjecture.

The result shows the conjecture fails in dimensions above two, while the original two-dimensional case remains open.

The finding resolves an 87-year-old higher-dimensional problem and underscores the role large language models can play in mathematical discovery.