EventAI ModelsJuly 23, 2026
AI solves 87-year-old Jacobian conjecture, cracks multiple Erdős problems

Claude Fable 5 disproved the 87-year-old Jacobian conjecture, validated within hours. Separately, a researcher used GPT-5.6 Sol Ultra to produce proofs for six unsolved Erdős problems in five days, publishing the full workflow.
Featured · Levent Alpöge, Dmitry Rybin
5 sources
LLMs break down in funny ways when told the Jacobian Conjecture counterargumentminimaxir.com
wtf is happening: A researcher says he used GPT-5.6 Sol Ultra in Codex to produce proposed...x.com
Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problemfortune.com
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