The closest the field has come to solving the planar unit distance problem, first proposed in the 1940s, was in 1984. Now, OpenAI claims an internal model has cracked the puzzle.

The math world is losing its mind over the new solution to an Erdős problem. This is what AI found, how we missed it—and why it matters.

OpenAI says its AI model solved a famous 80-year-old maths problem that puzzled experts for decades, marking a major ...