Why Pope Leo Wants Global Rules for AI

Pope Leo XIV’s warnings about artificial intelligence are rooted in a distinction: AI can support human flourishing, but its development and use need ethical limits and public oversight. He has pointed to risks ranging from misinformation and social division to warfare, and argues that no country or technology company should be left to manage those challenges alone.459

The promise—and the risks—Leo sees in AI

Leo has not called for rejecting technological progress. His stated aim is to place it at the service of human dignity and the common good. Vatican messaging around his first encyclical, Magnifica Humanitas, also emphasizes truth, the dignity of work, social justice and peace.1216

His concern is that those benefits are not automatic. In his first major document on AI, Leo warned that systems can spread misinformation and prioritize conflict. He has also warned that AI could deepen inequality and weaken human relationships if it is not guided by ethical oversight.49

The social consequences matter as much as the technology itself. Leo has urged the development of systems that do not foster divisions but instead strengthen peace and the bonds between people.2

Why warfare and human control are central concerns

Leo’s sharpest warnings concern AI’s use in war. He has cautioned that autonomous weapons can reduce human control over life-and-death decisions. Reporting on his first major AI document said he warned that some systems had advanced to the point of being practically beyond human reach to govern.4 The BBC also reported his concern that diminished human control makes it harder to judge whether a war can be considered just, and his warning against an AI arms race.6

For Leo, the danger is not only a malfunctioning weapon. It is also the prospect that AI could intensify conflict and make responsibility harder to assign. He has warned that AI could lead the world down a path of unending war.24

Why Leo is calling for rules beyond voluntary ethics

Leo has called for robust regulation and for AI developers to work for the common good, rather than treating profit as the only goal.5 The appeal reflects a broader Vatican position: technological creativity should be encouraged while human rights and dignity are protected through sound legislation.8

The Vatican’s concern did not begin with the latest corporate warnings. Reuters reported that Vatican officials had raised the risk of an AI-driven catastrophe years before major U.S. AI firms raised the issue at the U.N. Security Council in September 2026.1 Leo’s approach also draws on the Church’s longer engagement with social change: in 2025, he said the Church must respond to a new industrial revolution and the development of AI.

Why international cooperation matters

Cardinal Pietro Parolin, the Vatican secretary of state, has warned against countries “going it alone” on AI. He has called for reflection on the technology’s consequences and noted recent calls for regulation from major technology companies. The Vatican’s emphasis is that shared challenges call for cooperation among countries, rather than isolated national approaches.

That does not make corporate appeals a substitute for public rules. It puts them among the voices in a wider debate about how oversight should work. In September, about 30 U.S. bishops met privately with seven AI experts representing four technology companies; the U.S. bishops’ conference has also formed an AI task force.

Taken together, Leo’s position is a call to govern AI before its use in society and conflict outruns human judgment. He supports its potential, but argues that protecting people, preserving peace and setting meaningful safeguards must come first.2512