Anthropic has appointed Mariano-Florentino (Tino) Cuéllar as its first Chief Global Affairs Officer, strengthening the company's leadership as governments worldwide accelerate efforts to shape artificial intelligence policy and governance. In the newly created role, Cuéllar will lead Anthropic's global policy, strategic international engagement, and government relations initiatives.
Cuéllar joins Anthropic after serving as President of the Carnegie Endowment for International Peace, one of the world's leading independent international affairs think tanks. His appointment brings decades of experience spanning law, technology, international security, public policy, and government across the international, national, and state levels.
Before leading Carnegie, Cuéllar served as a Justice of the Supreme Court of California, where he authored opinions on technology and privacy, international agreements, and constitutional governance. His career also includes leadership roles at Stanford University, where he directed the Freeman Spogli Institute for International Studies, co-led the Center for International Security and Cooperation, and headed the Stanford Cyber Initiative. He currently serves as the Cameron Schrier Family Professor at Stanford Law School and a Senior Fellow at Stanford's Institute for Human-Centered Artificial Intelligence.
Cuéllar has also held several prominent public service positions, including membership on the US President's Intelligence Advisory Board and the US Department of State's Foreign Affairs Policy Board, while serving in the White House and federal agencies under three presidential administrations. More recently, he co-led California's Frontier AI Working Group, co-chaired the bipartisan Task Force on Nuclear Proliferation and American Security, and was appointed by the National Academy of Sciences to its Committee on Responsible Computing Research.
Before joining Anthropic, Cuéllar had served as a Trustee of Anthropic's Long-Term Benefit Trust since January 2026. He has stepped down from the Trust to assume his executive responsibilities, with a successor to be selected through the Trust's established process.
Commenting on his appointment, Cuéllar said policymakers around the world are at a defining moment in determining how artificial intelligence will be governed.
"Policymakers in the US and around the world are increasingly realizing that we are at a critical inflection point when it comes to how we govern and develop artificial intelligence. The choices we make today will determine whether humanity can harness extraordinary possibilities to advance science and improve lives across the world or face enormous risk and growing inequality. Democracies must set the terms on which this technology advances, and there is no more consequential place to be shaping that work right now than Anthropic."
Daniela Amodei, President and Co-founder of Anthropic, said Cuéllar's extensive experience across government, academia and public institutions makes him well positioned to guide the company's engagement with policymakers and civil society.
"Tino has spent his career helping public institutions respond to times of change with thoughtfulness, pragmatism, and deep commitment to the common good," Amodei said. "At all levels of government, the law, and academia, Tino has served with sound judgment and civic-mindedness, and we're looking forward to him putting these principles to work at Anthropic. I can't think of anyone better prepared to partner with governments, civil society, and community groups as they engage with both the risks and opportunities presented by advanced AI."
The appointment comes as AI companies face increasing regulatory scrutiny and engage more closely with governments on issues including AI safety, international standards, security, and responsible deployment of advanced AI systems.
