OpenAI COO Brad Lightcap is transitioning to a special projects role reporting to Sam Altman; Fidji Simo is taking medical leave for several weeks (Shirin Ghaffary/Bloomberg)

Shirin Ghaffary / Bloomberg: OpenAI COO Brad Lightcap is transitioning to a special projects role reporting to Sam Altman; Fidji Simo is taking medical leave for several weeks - OpenAI's chief operating officer is shifting into a new role and two other top executives are going on leave due to health reasons …