After five days of chaos triggered by OpenAI's firing of CEO Sam Altman, the executive is set to return to the company, while the board of directors that fired him is to be almost entirely remade. OpenAI last night that it "reached an agreement in principle for Sam Altman to return to OpenAI as CEO."

OpenAI said that the company and Altman are still "collaborating to figure out the details." But three of the four board members who remained after the Friday departures of Altman and OpenAI CTO Greg Brockman will leave.

The one OpenAI board member who is staying is Quora CEO Adam D'Angelo, who was reportedly involved in the discussions that led to Altman's return. The three who are leaving the board are OpenAI Chief Scientist Ilya Sutskever, entrepreneur Tasha McCauley, and Helen Toner of the Georgetown Center for Security and Emerging Technology.