OpenAI CEO Sam Altman took the witness stand Tuesday to defend his business record in a trial pitting him against Elon Musk, rebutting testimony that disparaged his leadership at a pivotal time for ...

Altman is defending himself against Musk’s claims that he’s trying to enrich himself at the expense of OpenAI’s original nonprofit mission.

The OpenAI chief rejects claims he deceived Elon Musk as high-stakes AI trial nears its end ...

The trial pits two of tech's most famous personalities against each other and could lead to seismic changes for the maker of ChatGPT.

OpenAI CEO Sam Altman has begun his testimony against Elon Musk in a high-profile jury trial in a California federal courtroom.

OAKLAND, Calif.(AP) — OpenAI CEO Sam Altman took the witness stand Tuesday to defend his business record in a trial pitting him against Elon Musk, rebutting testimony that disparaged his leadership at ...

Musk had sought to oust Altman from his leadership position over claims that he and others breached their duty to OpenAI's original nonprofit mission and unjustly enriched themselves.

The jury ruled that Elon Musk had waited too long to sue OpenAI and its other co-founders.

Video from around the world on the latest news developments, with insight from Wall Street Journal editors and reporters.

Elon Musk’s lawsuit accusing OpenAI of violating its charter to function as a charitable organization was unanimously rejected by a federal jury. The nine-member jury on Monday decided that Musk's ...