It's not. It's an inverse Compton scattering experiment. Abstract: "The generated gamma-rays have the highest energies yet reported from an all-optical inverse Compton scattering scheme..."
"But __our_ai_project_here__ ran into trouble, said the five people familiar with it, dogged by its size and by the lack of a clearly defined vision of what __our_company_here__ wanted in a __our_ai_product_here__. Team members complained of shifting priorities and arbitrary or unrealistic deadlines."