OpenAI co-founder and President Greg Brockman says he has quit the company “based on today’s news” (Greg Brockman/@gdb)

OpenAI CTO Mira Murati becomes the company’s interim CEO  —  “Mr. Altman’s departure follows a deliberative review process by the board, which concluded that he was not consistently candid in his communications with the board, hindering its ability to exercise its responsibilities,” the company said in its blog post.