Lilian Weng

Lilian Weng is the Vice President of Research and Safety at OpenAI, where she leads critical work on AI safety, alignment, and research. Born and raised in China, she earned a Bachelor's degree in Computer Science from Beihang University before completing a Master's and PhD in Computer Science from Carnegie Mellon University.

At OpenAI, Weng leads teams working on some of the most important challenges in AI — ensuring that increasingly powerful AI systems remain safe, aligned with human values, and beneficial. Her research spans safety evaluations, red-teaming, and alignment techniques for large language models.

Weng is also widely known in the AI community for 'Lil'Log,' her influential personal blog that explains complex AI research concepts in clear, accessible terms. The blog has become a go-to educational resource for researchers, engineers, and students worldwide, covering topics from reinforcement learning and transformers to test-time compute and AI alignment.

Her dual role — advancing AI safety research at one of the world's leading AI labs while making AI knowledge accessible through her writing — makes her one of the most important figures in the AI safety community.