Greg Brockman reads private journal entries on stand as Musk's OpenAI nonprofit lawsuit intensifies

Greg Brockman, president of OpenAI, has spent multiple days on the witness stand reading from personal diary entries he never intended to make public. The testimony is unfolding in a high-stakes trial where Elon Musk alleges that OpenAI abandoned its founding nonprofit mission to instead pursue commercial interests that enrich the company's leaders, including Brockman and CEO Sam Altman.

Brockman described the experience as "very painful," according to court reports. While he stated he is not "ashamed" of any entries, he characterized them as deeply personal reflections rather than straightforward logs of actions or feelings. The journal entries, Brockman explained, operate as stream-of-consciousness writing that explores alternate viewpoints and meanders through his thinking. His legal team attempted to limit the scope of questioning, but the judge denied the motion, compelling him to walk through the diary content before the jury.

The proceedings place Brockman in an unusual position—defending the inner workings of OpenAI's decision-making culture under direct scrutiny while Musk's legal team uses his own words to probe the organization's shift away from its original nonprofit structure. Musk's legal team has argued that OpenAI's trajectory represents a fundamental betrayal of the nonprofit principles established when he co-founded the company in 2015, before his departure in 2018. The case could have significant implications for how OpenAI structures its relationships between its nonprofit parent and commercial subsidiaries going forward. Brockman's testimony is expected to continue as the trial progresses.