Tim Shi

Tim Shi is co-founder and CTO of Cresta, an AI platform for contact centers that provides real-time agent assistance and conversation intelligence. He earned his PhD in computer science at UC Berkeley's BAIR Lab under Pieter Abbeel and previously worked at OpenAI as a member of technical staff, at DJI Research as a deep learning researcher, and at Dropbox in machine learning. At OpenAI he co-authored the influential paper "Deep Reinforcement Learning from Human Preferences," which underpins modern RLHF techniques. He co-founded Cresta in 2017.