Simo、OpenAIのAGIリーダーを退任

fidji simo announced she is stepping down from her full-time role as openai's agi chief to focus on recovering from a chronic neuroimmune condition she has managed for seven years. she initially took medical leave in april shortly after assuming the agi lead title and will now become a part-time advisor. this departure follows high-level exits by coo brad lightcap and cmo kate rouch, indicating significant instability in the company's leadership structure. simo was formerly the ceo of applications and played a key role in product strategy before president greg brockman took over product leadership in may.