In July, Fiji Simo announced that she would be leaving her role as CEO of Applications at OpenAI and transitioning to a part-time advisor role. Simo, who was diagnosed postural tachycardia syndromeor POTS, initially took a medical leave of absence in April 2019.
“Over the past seven years, I have spent countless hours in doctor’s offices dealing with symptoms, treatments, insurance, uncertainty, and all the invisible work that comes with being a patient,” Simo wrote on
Simo became CEO of applications in May 2025.
