Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem

Anthropic's Levant Alpöge, a former Harvard valedictorian, used Claude's Fable 5 to find something that mathematicians have failed to since 1939.

Source: [Fortune](https://fortune.com/2026/07/21/ai-solves-jacobian-conjecture-levant-alpoge-claude-fable-5/)