April 29, 2026 at 10:58 am

OAKLAND, Calif. (AP) — Elon Musk took the stand for the second day Wednesday in the landmark trial that pits the world’s richest man against Sam Altman, a fellow OpenAI co-founder he accuses of betraying promises to keep the company as a nonprofit dedicated to humanity’s benefit.

The trial centers on the 2015 birth of the ChatGPT maker as a nonprofit startup primarily funded by Musk before evolving into a capitalistic venture now valued at $852 billion. It started Monday and is expected to last about three weeks.

Musk, who invested about $38 million in OpenAI from December 2015 through May 2017, gave his account of OpenAI’s early years, recounting how he lost confidence that Altman would keep it a nonprofit.…