Pope Leo XIV’s encyclical Magnifica humanitas, dated May 15 2026, addresses preservation of the human person amid artificial intelligence and will be presented May 25 at the Synod Hall. Primary coverage states the event includes Cardinal Víctor Manuel Fernández, Cardinal Michael Czerny, Professor Anna Rowlands, Anthropic co-founder Christopher Olah, and Professor Leocadie Lushombo, with closing remarks from Cardinal Pietro Parolin. The document marks the 135th anniversary of Rerum novarum. The Vatican News release lists Olah’s role as head of interpretability research at Anthropic but supplies no details on prior drafting sessions or technical contributions. Earlier Vatican statements on AI, including the 2020 Rome Call for AI Ethics and 2023 Dicastery for the Doctrine of the Faith note on artificial intelligence, already referenced human dignity and algorithmic transparency; the new encyclical extends these themes without citing specific Anthropic techniques such as constitutional AI. Coverage omits any reference to parallel efforts by other labs or regulatory bodies, including the EU AI Act negotiations concluded in 2024. Olah’s participation aligns with Anthropic’s published work on mechanistic interpretability, referenced in company updates from 2023–2025, yet the Vatican announcement provides no evidence of joint technical outputs or shared datasets.