The founders of OpenAI, Sam Altman and Elon Musk, are no longer publicly active in the company. According to reports, their involvement has diminished significantly since 2021. The reason for their departure is unclear, but it may be related to personal or professional commitments.

Source: https://www.ft.com/content/638f67f7-5375-47fc-b3a7-af7c9e05b9e0