There's a shakeup unfolding in OpenAI's C-suite, the company confirmed to TechCrunch.

Fidji Simo, CEO of AGI deployment, is taking medical leave for "several weeks" to address an autoimmune condition and President Greg Brockman will step in, according to an internal memo cited by The Information and other outlets.

Marketing chief Kate Rouch is stepping aside as she recovers from cancer, with plans to come back "in a more limited purview," health permitting, Bloomberg reports.

Operating chief Brad Lightcap will take a new special projects role reporting to CEO Sam Altman.