Elon Musk's latest attempt to keep Sam Altman from turning OpenAI for-profit has been blocked by a federal judge

A judge denied Elon Musk’s move to halt OpenAI’s efforts to convert into a for-profit entity, saying he hasn't met “the high burden required for a preliminary injunction."

A California federal judge on Tuesday rejected Tesla founder and billionaire Elon Musk's bid to block OpenAI's partnership with Microsoft, but said she could expedite a trial to address the "core claims" of Musk's ongoing litigation against OpenAI.

U.S. District Court Judge Yvonne Gonzalez Rogers has rejected Elon Musk’s motion for an injunction that would have blocked OpenAI’s transition into a for-profit company.

The rivalry between Sam Altman and Elon Musk is entering its Apprentice era. Both men have the ambition to redefine how the modern world works—and both are jockeying for President Donald Trump’s blessing to accelerate their plans.

After soaring following the election, Tesla ( TSLA -3.58%) stock ran into a wall in February as a number of news items, macro challenges, and CEO Elon Musk's involvement in the Department of Government Efficiency (DOGE) initiative all seemed to contribute to a sharp pullback in the stock.