Elon Musk’s lawsuit seeks to block OpenAI’s transformation into a for-profit corporation, arguing it betrays the nonprofit’s original mission. A federal judge indicated parts of the case may go to trial, requiring Musk to testify. OpenAI, backed by Microsoft, contends Musk's claims are baseless and detrimental to their mission. The lawsuit stems from Musk's grievances over power struggles within OpenAI that began in 2017, and raises concerns from other tech entities like Meta Platforms regarding the implications of OpenAI's transition.