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Pope Leo XIV Publishes Encyclical Urging Strong Rules on Artificial Intelligence

The Vatican frames AI as an epoch‑defining social and moral challenge requiring legal oversight, independent accountability, limits on lethal autonomy

Overview

  • The Holy See released Magnifica Humanitas and formally presented the 42,000‑word encyclical on May 25, 2026, turning years of Vatican‑tech dialogue into a single moral teaching document.
  • Leo XIV calls for robust legal frameworks and independent oversight of AI development to ensure the technology serves the common good rather than corporate profit.
  • The text declares it is not permissible to delegate irreversible, lethal decisions to machines and demands transparency and identifiable chains of human responsibility for military uses of AI.
  • The Vatican criticized concentration of data and corporate power, warned of job displacement and risks to children, and issued a first‑ever papal apology for the Church’s historical role in legitimizing slavery.
  • The decision to include Anthropic co‑founder Christopher Olah at the Vatican launch drew criticism because Anthropic is in a public legal dispute with the U.S. administration, while experts say the encyclical could become a reference point for future AI policy and ethics.