Mariano-Florentino Cuéllar appointed to Anthropic’s Long-Term Benefit Trust

Anthropic’s Long-Term Benefit Trust announced the appointment of Mariano-Florentino (Tino) Cuéllar as a new member of the Trust. The Long-Term Benefit Trust is an independent body designed to help Anthropic achieve its public benefit mission.

Cuéllar brings extensive experience in law, governance, and international affairs, including service as a Justice of the Supreme Court of California, leadership of Stanford's Freeman Spogli Institute for International Studies, and his current role as President of the Carnegie Endowment for International Peace. Cuéllar announced plans to step down from Carnegie in July 2026, when he will return to Stanford University to lead the Center for Advanced Study in the Behavioral Sciences and the Knight-Hennessy Scholars Program.

He has served three U.S. presidential administrations and currently chairs the board of the William & Flora Hewlett Foundation. Cuéllar offers a global perspective shaped by his upbringing along the U.S.-Mexico border and a career spanning immigration, criminal justice, public health, and regulatory reform. His work has consistently focused on how technology affects public institutions and democratic governance—including co-leading California's Working Group on AI Frontier Models alongside Fei-Fei Li, and serving on the National Academy of Sciences Committee on Social and Ethical Implications of Computing Research.

Neil Buddy Shah, Chair of the Long-Term Benefit Trust, said: "As AI becomes a defining factor in geopolitical competition—reshaping economies, security, and the balance of power between nations—the Trust needs leaders who understand these dynamics. Tino's exceptional background in law, governance, and international affairs will be invaluable as we help Anthropic navigate a world where AI adoption by governments and institutions is accelerating rapidly."

Anthropic is a Public Benefit Corporation with a mission of ensuring a safe transition through transformative AI. The Long-Term Benefit Trust helps Anthropic achieve this public benefit mission by selecting members of Anthropic’s Board of Directors, and advising the Board and leadership on how the company can maximize the benefits of advanced AI and mitigate its risks. New Trustees are selected by existing Trustees, in consultation with Anthropic, and have no financial stake in Anthropic. The Trust’s composition reflects a recognition that transformative AI will affect more than technology or business, with significant implications for global health, international security and society as a whole.

Tino Cuéllar said: “As AI capabilities advance at an unprecedented pace, the need for governance structures that marry private sector dynamism with civic responsibility has never been more urgent. Anthropic’s leadership has demonstrated a genuine commitment to thinking deeply about the societal implications of their work—not just the technology, but its impact on global security, democratic institutions, and human welfare. The Long-Term Benefit Trust represents a thoughtful approach to ensuring that as these powerful systems evolve, decisions about their development remain grounded in the broader public interest. I’m honored to contribute my experience to this important work.”

The Trust also announced that Kanika Bahl and Zachary Robinson have concluded their terms as Trustees. Both joined the Trust at its founding and contributed significantly to establishing its role in Anthropic’s governance.

Daniela Amodei, President of Anthropic, said: "I'm delighted to welcome Tino to the Trust. What I find most compelling about him is his ability to work across sectors—law, government, academia, and technology. As AI systems become more capable, we need leaders who have spent their careers thinking deeply about technology's role in society. We're also extremely grateful to Kanika Bahl and Zach Robinson for their contributions during the Trust's formative period—it would not be where it is today without them."

Buddy Shah, Chair of the Long-Term Benefit Trust, said: “I've been grateful for Kanika and Zach's partnership since the Trust was established in 2023. They helped build the LTBT from the ground up—including the work of appointing board members like Jay Kreps and Reed Hastings who have strengthened Anthropic's governance. I'm grateful for their service and proud of what we built together."

Kanika Bahl, CEO & President of Evidence Action, said: “Serving on the Long-Term Benefit Trust has been a privilege during a pivotal time for both Anthropic and the broader AI field. I’ve been impressed by the seriousness with which Anthropic’s leadership approaches questions of safety and societal benefit. I wish the Trust and the entire Anthropic team continued success.”

Zachary Robinson, CEO of the Centre for Effective Altruism, said: “I've been honored by the opportunity to serve on the Long-Term Benefit Trust during these formative years. I continue to admire the commitment Anthropic's leadership and Trustees make to safety and public benefit, and I have been impressed by the degree to which that commitment has endured as Anthropic has scaled and evolved. I am grateful to know Anthropic remains in the hands of leaders who care deeply about its mission, and I wish them all success.”