Leadership · Chief Global Affairs Officer

Mariano-Florentino Cuéllar

A former California Supreme Court justice and president of the Carnegie Endowment, hired in 2026 as Anthropic's first chief global affairs officer.

Role
Chief Global Affairs Officer
Joined Anthropic
2026
Before Anthropic
Carnegie Endowment for International Peace

Career

  1. Anthropic
    • Chief Global Affairs OfficerAug 2026 – present
  2. Carnegie Endowment for International Peace
    • PresidentOct 2021 – Jul 2026
  3. Stanford Law School
    • Herman Phleger Visiting ProfessorJan 2015 – Nov 2021
  4. Supreme Court of California
    • JusticeJan 2015 – Oct 2021
  5. Stanford Law School
    • Stanley Morrison Professor of LawAug 2012 – Jan 2015
  6. The White House
    • Special Assistant to the President for Justice and Regulatory PolicyFeb 2009 – Jul 2010
Show 4 earlier employers
  1. Stanford Law School
    • Professor and Deane Johnson Faculty ScholarAug 2007 – Aug 2012
  2. Stanford University
    • Director (and other positions), Freeman Spogli Institute for International StudiesJul 2004 – Jan 2015
  3. Stanford Law School
    • Associate ProfessorAug 2003 – Aug 2007
    • Assistant ProfessorAug 2001 – Aug 2003
  4. U.S. Court of Appeals for the Ninth Circuit
    • Law Clerk to Chief Judge Mary M. SchroederJul 2000 – Aug 2001

Education

  • A.B., Government and Political Psychology, Harvard University, 1993
  • J.D., Law, Yale Law School, 1997
  • Ph.D., Political Science, Stanford University, 2000
  • M.A., Political Science, Stanford University, 1996

Lesser-known facts

  • Holds a Harvard AB, a Yale law degree and a Stanford PhD in political science.
  • Co-led California's working group on frontier AI models with Fei-Fei Li.
  • Served as Special Assistant to President Obama for Justice and Regulatory Policy in 2009 and 2010.
  • Joined the California Supreme Court without ever having served as a judge, and earned a reputation there as a pragmatist.
  • Began organizing classes on artificial intelligence at Stanford Law School nearly a decade before joining Anthropic.
  • Was a trustee of Anthropic's Long-Term Benefit Trust from January 2026, stepping down to join the company.
  • That working group's 2025 report helped inform California's SB 53, the first US law focused specifically on AI safety.
  • Co-founded a nonprofit in law school that placed students as English teachers in underserved communities.

Known for

  • Government by Algorithm (ACUS, 2020; co-authored)
  • Administrative Law: The American Public Law System (West, 2020, 2014; co-authored)
  • Governing Security (Stanford University Press, 2013)

Honors

2019 Yale University: Castle Lecturer on Ethics, Politics, and Economics · 2017 Stanford University: Commencement Speaker (126th Commencement) · 2017 American Academy in Berlin: Lloyd Cutler Distinguished Visitor · 2016 Santa Clara University: Doctor of Laws (Honorary) · 2012 Oxford University: Barbara Herrell Bond Distinguished Lecturer

Updated 2026-10-18 · 8 sources cited · Researched by Autumn · Research anyone like this

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Compiled from public sources by Autumn · Updated 2026-10-18

Photos: Mariano-Florentino Cuéllar by Anthropic, Press photo

Researched by Autumn, the search for people and companies. Not affiliated with Anthropic.