Hi! I’m Nat, a 3rd-year undergrad at UC Berkeley studying computer science. Previously, I spent two years at the Center for AI Safety, where I developed safety benchmarks for language models. Outside of school, I enjoy making music, climbing rocks, and eating watermelon!

:envelope: Email / :link: Linkedin / :computer: GitHub / :mortar_board: Google Scholar

Research

WMDP Icon
The WMDP Benchmark: Measuring and Reducing Malicious Use with Unlearning
Nathaniel Li*, Alexander Pan*, Anjali Gopal, Summer Yue, Daniel Berrios, Alice Gatti, Justin D. Li, Ann-Kathrin Dombrowski, Shashwat Goel, Long Phan, Gabriel Mukobi, Nathan Helm-Burger, Rassin Lababidi, Lennart Justen, Andrew Bo Liu, Michael Chen, Isabelle Barrass, Oliver Zhang, Xiaoyuan Zhu, Rishub Tamirisa, Bhrugu Bharathi, Adam Khoja, Zhenqi Zhao, Ariel Herbert-Voss, Cort B. Breuer, Samuel Marks, Oam Patel, Andy Zou, Mantas Mazeika, Zifan Wang, Palash Oswal, Weiran Lin, Adam A. Hunt, Justin Tienken-Harder, Kevin Y. Shih, Kemper Talley, John Guan, Russell Kaplan, Ian Steneker, David Campbell, Brad Jokubaitis, Alex Levinson, Jean Wang, William Qian, Kallol Krishna Karmakar, Steven Basart, Stephen Fitz, Mindy Levine, Ponnurangam Kumaraguru, Uday Tupakula, Vijay Varadharajan, Yan Shoshitaishvili, Jimmy Ba, Kevin M. Esvelt, Alexandr Wang**, Dan Hendrycks** ICML 2024 TL;DR ⬆️ / paper / website / code / TIME / Scale AI blog / CAIS blog
HarmBench Icon
HarmBench: A Standardized Evaluation Framework for Automated Red Teaming and Robust Refusal
Mantas Mazeika, Long Phan, Xuwang Yin, Andy Zou, Zifan Wang, Norman Mu, Elham Sakhaee, Nathaniel Li, Steven Basart, Bo Li, David Forsyth, Dan Hendrycks ICML 2024 TL;DR ⬆️ / paper / website / code
RepE Honesty Icon
Representation Engineering: A Top-Down Approach to AI Transparency
Andy Zou, Long Phan*, Sarah Chen*, James Campbell*, Phillip Guo*, Richard Ren*, Alexander Pan, Xuwang Yin, Mantas Mazeika, Ann-Kathrin Dombrowski, Shashwat Goel, Nathaniel Li, Michael J. Byun, Zifan Wang, Alex Mallen, Steven Basart, Sanmi Koyejo, Dawn Song, Matt Fredrikson, J. Zico Kolter, Dan Hendrycks arXiv Preprint TL;DR ⬆️ / paper / website / code
Power Seeking Icon
Do the Rewards Justify the Means? Measuring Trade-Offs Between Rewards and Ethical Behavior in the MACHIAVELLI Benchmark
Alexander Pan*, Chan Jun Shern*, Andy Zou*, Nathaniel Li, Steven Basart, Thomas Woodside, Jonathan Ng, Hanlin Zhang, Scott Emmons, Dan Hendrycks ICML 2023 Oral TL;DR ⬆️ / paper / website / code