OpenAI CEO of Applications Fidji Simo steps down due to chronic illness

Fidji Simo didn't disclose what condition she suffers from. In 2025, she co-founded ChronicleBio, which aims to accelerate progress on POTS, ME/CFS, Long COVID, and other neuroimmune disorders.

Lots of people suffer from unexplained chronic illnesses - hopefully Simo is right that AI will enable better treatments.