Claude calculates nine-loop physics scattering amplitudes

Frontier AI models are transitioning from assisting with code to autonomously driving complex mathematical research and breaking established computational records in theoretical physics.

* Autonomous Multi-Day Reasoning: Claude executed the multi-stage derivation and compute pipeline largely unsupervised over several days, demonstrating robust long-horizon agentic capability.

* Record-Breaking Scientific Output: By reaching nine loops in planar N=4 super-Yang-Mills, Claude pushed beyond the previous eight-loop threshold achieved by human physicists.

* Drastic Cost and Time Reduction: What previously took years of specialized effort was accomplished in days for a few thousand dollars of compute.

* Rigorous Independent Verification: The results were validated by Lance Dixon, the physicist behind the previous eight-loop record, cementing the legitimacy of the findings.