Bing Liu is the head of research at Scale AI, where he leads work on post-training and evaluation of large language models, reasoning systems, and agentic AI. Prior to joining Scale, he contributed to the development of Llama 3 and the Meta AI Assistant at Meta GenAI, and previously led natural language understanding research for AR/VR assistants at Meta Reality Labs. He also serves as an adjunct professor at the University of California, Santa Cruz. He holds a Ph.D. in electrical and computer engineering from Carnegie Mellon University.