Ted Chai

Ted Chai currently serves as Chief of Staff at Recall.ai and is a Venture Partner at Pioneer Fund, focusing on defense and industrials. Prior to these roles, Ted was the Co-Founder and CEO of Sonnet, a startup aimed at enhancing conversational memory, which was part of Y Combinator's Summer 2022 cohort and was acquired in 2024. Ted's experience also includes a brief tenure in Strategic Operations at Uber, after which withdrawal occurred to concentrate on building Sonnet. Additionally, Ted worked in the U.S. Department of State, providing emerging technology analysis under the Office of the Science and Technology Adviser. Educationally, Ted is an alumnus of Y Combinator, the University of California, Berkeley, and Monta Vista High School.