
San Francisco, CA – Claude, the beloved albino alligator and unofficial mascot of the California Academy of Sciences, passed away on December 2, 2025, at the age of 30 due to a suspected infection. His death comes shortly after AI company Anthropic, creators of the Claude AI model, officially sponsored the rare reptile, a move that recently drew commentary from researcher Miles Brundage regarding the company's alignment with effective altruism principles.
Anthropic had undertaken the sponsorship earlier this year, providing support for Claude's enclosure, food, and veterinary care, and launching a 24/7 "Claude Cam" for global viewers. The company's employees developed a notable affection for the alligator, with stuffed Claude plushies and livestreams common in their offices, despite their AI chatbot being named after information theorist Claude Shannon, not the gator. Anthropic co-founder Daniela Amodei expressed enthusiasm for the partnership, stating, "I’m thrilled we can help bring Claude the alligator — everyone’s favorite Cal Academy resident — to families everywhere."
The sponsorship had prompted Miles Brundage to tweet, "> Claude the alligator being sponsored by Anthropic is evidence that Anthropic isn’t (totally) controlled by effective altruists. Inefficient and also carnivorous." This comment highlighted a perceived tension between the practical, seemingly "inefficient" act of sponsoring an alligator and the effective altruism movement's focus on maximizing positive impact through highly efficient means. The tweet's timing is now poignant, given the alligator's recent passing.
Anthropic maintains deep, though sometimes understated, connections to the effective altruism (EA) movement. Founders Dario and Daniela Amodei, along with key investors and trust members, have strong ties to EA, a philosophy advocating for the use of evidence and reason to determine the most effective ways to benefit others. The company is structured as a public benefit corporation with a "Long-Term Benefit Trust" designed to align its governance with its mission of developing AI for humanity's long-term benefit, a core tenet often associated with EA.
While some Anthropic representatives have sought to distance themselves from the specific "effective altruism" terminology, the company's origins and ongoing focus on AI safety and responsible development are largely informed by EA principles. The sponsorship of Claude, though seemingly a departure from strict efficiency, was presented by Anthropic as a way to foster curiosity-driven education and community engagement, perhaps aligning with a broader interpretation of societal benefit.