Calvin French-Owen, a pivotal contributor to the development of OpenAI's cornerstone products, opted to step down after a year-long tenure. In a candid blog post, he revealed his deep involvement in the creation of Codex during his time at OpenAI. His decision to leave was fueled by his desire to return to his roots as a founder of a startup. Calvin highlighted that, despite rapid expansion, OpenAI grappled with internal communication breakdowns and code management complexities, yet it managed to uphold the entrepreneurial zest of a fledgling company. A culture of confidentiality took root within the organization, with a heightened focus on product security to dispel external misconceptions about its safeguard measures.