GPT-5.2 produces a new result in theoretical physics

OpenAI published a preprint showing that a class of gluon interactions that physicists previously thought would not occur can indeed appear under certain conditions, with the paper's final formula first conjectured by GPT-5.2 Pro. The preprint is titled "Single-minus gluon tree amplitudes are nonzero", with authors including Alfredo Guevara, Alex Lupsasca, David Skinner, Andrew Strominger, and OpenAI's Kevin Weil. Human authors manually computed integer amplitudes for n up to 6, GPT-5.2 Pro greatly simplified these expressions and generalized a formula valid for any n; subsequently, an internal scaffolding version took about 12 hours to derive the same formula and provide a formal proof, and the results were cross-checked against Berends-Giele recursion relations and soft theorems. With GPT-5.2, the relevant amplitudes have been extended from gluons to gravitons.