Claude Fable 5.1 Reportedly completed the nine-loop six-particle scattering-amplitude calculation in planar N=4 super-Yang–Mills theory
Anthropic disclosed that Claude Fable 5.1 completed the nine-loop calculation of the six-particle scattering amplitude in planar N=4 super-Yang–Mills theory; the result was independently verified by Lance Dixon, and the He Song team also advanced to nine loops.