Greg Brockman, president of OpenAI, spent two days on the stand reading excerpts from a 100‑page personal journal after Elon Musk’s legal team introduced the entries as evidence. Musk claims the notes reveal a moment when the nonprofit’s leaders plotted to shift toward a for‑profit model, allegedly prioritizing personal gain over the original mission.

Brockman described the journal as a stream‑of‑consciousness record, noting that he sometimes copied others’ messages to explore alternate viewpoints. His entries from 2015‑2023 include a 2017 passage where he mused about flipping to a for‑profit structure, writing “making the money for us sounds great.” That line has been framed by Musk’s attorney as proof of greed, juxtaposed with Brockman’s current stake, now estimated at $30 billion.

OpenAI’s counsel, Sarah Eddy, pushed back, arguing the entries reflect internal debates about preserving the nonprofit ethos amid Musk’s demands for control. Brockman emphasized that no decision to create a for‑profit arm was ever finalized without Musk’s departure, which occurred in 2018. The courtroom drama underscores how personal documents can become pivotal in high‑stakes corporate disputes.