Claude computes a nine-loop physics result

Anthropic says Claude Science computed a nine-loop six-particle amplitude in planar N=4 super Yang-Mills using 96 CPUs for a week, with the bootstrap run consuming about $100. The research account says SLAC physicist Lance Dixon independently validated the result and estimates a complete end-user calculation at roughly $1,000–$2,000. Research teams should file this as a harness-and-validation pattern for narrow frontier calculations, not as evidence that unsupervised science is solved; the archive’s earlier alignment-researcher cost analysis tracks the same shift from model demo to managed research workflow.