Musk dropped the lawsuit but filed another one against Altman and OpenAI, this time elevating his accusations to claim OpenAI worked with Microsoft, an investor, to create a monopoly. The billionaire also alleged the company violated its founding claim as a nonprofit by pursuing profit. OpenAI has denied the allegations.

The youth advocacy group Encode is supporting Musk's lawsuit seeking a preliminary injunction that would stop OpenAI from becoming fully for-profit.

European leaders are starting to push back against lurid claims made by the tech billionaire turned No 1 Trump supporter

Musk has written a number of recent social media posts to show his support of far-right populists in Europe and to attack politicians on the left. Now, European leaders believe, is the time to brush him back.