Magnifica Humanitas: The Pope Holds AI Up to Humanity’s Mirror
With Magnifica Humanitas, Pope Leo XIV brings the global AI debate into the fold of Catholic social doctrine. The encyclical challenges governments and big‑tech: artificial intelligence must not remain in the hands of a privileged few.
Some documents arrive at precisely the right moment. Magnifica Humanitas is one of them. Signed on May 15 2026, on the 135th anniversary of Rerum Novarum, and released on May 25, Pope Leo XIV’s first encyclical is not merely a pastoral letter; it is a political act of worldwide scope, destined to reshape the terms of the AI discourse far beyond the Vatican walls.
The comparison to Rerum Novarum is not rhetorical. Leo XIII wrote in 1891 to respond to the upheaval of the Industrial Revolution, when capital was concentrating in the hands of a few and workers were losing dignity and rights. Leo XIV—Robert Prevost, the first American pontiff in history—faces an analogous fissure: the AI revolution is redistributing power, transforming work, and redrawing the boundaries between war and peace at a speed that legislators struggle to match.
Addressed to Catholic faithful and “all persons of good will,” the document does not reject technology. Leo XIV acknowledges AI’s potential for medicine, research, and social inclusion. Yet he identifies a danger that goes beyond the already‑known technical risks: the risk that humanity begins to view itself and others merely as data points, production units, or tools of control. “In the age of artificial intelligence, our urgent duty is to remain profoundly human,” the Pontiff writes.
The encyclical’s core criticism is a denunciation of what Leo XIV calls the “culture of power” driving the AI race: speed, scale, market domination, and geopolitical competition. It is a direct challenge to the handful of tech giants that amass disproportionate control over data and global social influence. The reference to the Tower of Babel is not decorative; building an AI future without justice and shared responsibility, the Pope argues, repeats an ancient mistake cloaked in code.
On work, Magnifica Humanitas draws on the tradition of Laborem Exercens (John Paul II): labor “expresses and enhances the dignity of our lives.” The encyclical calls for any innovation to be evaluated in advance for its impact on employment, introducing “social criteria for innovation”—a concrete proposal that European legislators, currently revising the AI Act, would be well‑advised to take seriously.
Regarding military AI, the tone becomes even sharper. The Pope devotes the final chapter to autonomous weapons, demanding “the most stringent ethical constraints” and declaring the doctrine of “just war” obsolete in the face of systems that can independently decide whom to strike.
The document’s presentation featured an unexpected guest: Chris Olah, co‑founder of Anthropic. His presence was not merely symbolic. Olah admitted that AI companies operate “within incentives that can clash with doing the right thing” and welcomed external pressure—including that from the Church—to steer outcomes toward the greater good.
Magnifica Humanitas arrives as the EU has just updated its Digital Omnibus on the AI Act, as 79 % of Italian SMEs already use AI without internal policies, as humanoid robots are entering factories, and as algorithms are deciding who receives loans or passes interviews.
The encyclical’s merit lies not in providing technical answers but in posing the questions the market refuses to ask: for whom is this technology? Who decides how it evolves? What remains of the human when the machine does everything better?
Leo XIV is not afraid of the future. He fears a future made without us.