Tim Shi is the Co-Founder & CTO of Cresta. He started his PhD at Stanford AI Lab researching natural language processing and reinforcement learning. He was an early member of the OpenAI team in 2016 and made contribution to building safe AGI in digital environments. His work on "world of bits" laid foundation for web-based reinforcement learning agents. He co-founded Cresta in 2017 and Cresta was one of first companies to deploy generative AI in enterprise, including GPT based suggestions product in 2019.