Anthropic researcher thanks Claude for solving 87-year-old Math conjecture

An Anthropic researcher used the AI model Claude Fable 5 to find a counterexample. This discovery challenges the 87-year-old Jacobian conjecture in mathematics. The AI-assisted finding reportedly offers a simple counterexample for verification. The conjecture, proposed in two dimensions, was extended to all dimensions later. This AI breakthrough highlights its growing role in mathematical discovery.