Mariano-Florentino (Tino) Cuéllar to join Anthropic as Chief Global Affairs Officer

Mariano‑Florentino (Tino) Cuéllar has joined Anthropic as its first Chief Global Affairs Officer, a role that will oversee the company’s policy work, strategic international engagement, and government relationships worldwide. Cuéllar’s career spans law, technology, international security, and public institutions at the international, national, and state levels. He recently stepped down as President of the Carnegie Endowment for International Peace, a leading independent global policy research institution with scholars in 20 countries. Prior to that, he served as a Justice of the California Supreme Court, where his opinions addressed technology and privacy, international agreements, and separation of powers. He has also directed Stanford’s Freeman Spogli Institute for International Studies, co‑directed the university’s Center for International Security and Cooperation, and directed the Stanford Cyber Initiative. Cuéllar has served on the President’s Intelligence Advisory Board and the U.S. Department of State’s Foreign Affairs Policy Board, and worked in the White House and federal agencies in three presidential administrations. The National Academy of Sciences appointed him to its Committee on Responsible Computing Research. In recent years he co‑chaired the bipartisan Task Force on Nuclear Proliferation and American Security, co‑led California’s Frontier AI Working Group, and served as board chair and later director of the Center for Advanced Study in the Behavioral Sciences. He is currently the Cameron Schrier Family Professor at Stanford Law School and a Senior Fellow at Stanford’s Institute for Human‑Centered Artificial Intelligence. Cuéllar has served as a Trustee of Anthropic’s Long‑Term Benefit Trust since January 2026 and has stepped down from the Trust to join the company. The Trust will select a successor under its normal process. Cuéllar stated that policymakers worldwide are at a critical inflection point regarding AI governance and development, emphasizing the importance of democratic societies setting the terms for AI advancement. Daniela Amodei praised his career for its sound judgment and civic‑mindedness, noting his readiness to partner with governments, civil society, and community groups on AI risks and opportunities. Cuéllar arrives at a pivotal moment for Anthropic’s work with governments, as AI raises questions for economies, security, and communities. Anthropic is also evaluating the safety of its systems by giving employee‑like access to a team from METR, a nonprofit that evaluates frontier AI models, and is in early discussions with other organizations, including Hugging Face. Earlier this year, Anthropic updated its election safeguards and has opened an office in Singapore, signing an MOU with the Singapore government to advance safe, responsible AI adoption.