Anthropic names former California justice as first global affairs chief

Investing.com -- Anthropic announced Tuesday that Mariano-Florentino Cuéllar will join the company as its first Chief Global Affairs Officer. He will oversee policy, international engagement, and government relationships globally.

Cuéllar recently left his position as President of the Carnegie Endowment for International Peace, a global policy research institution with scholars in 20 countries. He previously served as a Justice of the Supreme Court of California, where he wrote opinions on technology, privacy, international agreements, and separation of powers.

His background includes serving as director of Stanford's Freeman Spogli Institute for International Studies and co-director of the university's Center for International Security and Cooperation. He also directed the Stanford Cyber Initiative and served on the President's Intelligence Advisory Board and the US Department of State's Foreign Affairs Policy Board. He worked in the White House and federal agencies across three presidential administrations.

The National Academy of Sciences appointed him to its Committee on Responsible Computing Research. He co-chaired the bipartisan Task Force on Nuclear Proliferation and American Security and co-led California's Frontier AI Working Group.

Cuéllar currently holds the position of Cameron Schrier Family Professor at Stanford Law School, where he began teaching classes on artificial intelligence nearly a decade ago. He also serves as Senior Fellow at Stanford's Institute for Human-Centered Artificial Intelligence.

He served as a Trustee of Anthropic's Long-Term Benefit Trust since January 2026 and has stepped down from that role to join the company. The Trust will select a successor through its standard process.

"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," Cuéllar said.

Daniela Amodei said Cuéllar "has spent his career helping public institutions respond to times of change with thoughtfulness, pragmatism, and deep commitment to the common good."

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