Sam Altman just left OpenAI: https://openai.com/blog/openai-announces-leadership-transition

Will resolve to the majority opinion of a poll (with options "reduced" and "increased") of people who I think are trustworthy on this question. (Feel free to propose different resolution criteria.)

Edit: Clarification: I will resolve this market based on whether the board's initial decision to fire Sam Altman set off a chain of events that ultimately reduced/increased AI risk. So if Sam returns to OpenAI, this market would NOT resolve as N/A.