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Musk trial against OpenAI, Microsoft in US begins to take shape

By Mike Swift and Amy Miller ( March 14, 2026, 00:05 GMT | Insight) -- With Elon Musk's fraud claims against OpenAI, Microsoft and OpenAI CEO Sam Altman due to go to trial next month, a federal judge in California on Friday began to shape the contours of what is sure to be a high-profile trial, featuring testimony from Musk, Altman and Microsoft CEO Satya Nadella. US District Judge Yvonne Gonzalez Rogers dealt with a long list of pre-trial motions during a lengthy hearing, ranging from efforts by the defendants to strike the testimony of Musk’s damages expert, to Musk’s bid to limit the defendants from including “extraneous and inflammatory evidence” about the billionaire and his companies.In grappling with issues ranging from Elon Musk’s damage claims of up to $135 billion against OpenAI and Microsoft to the admissibility of testimony that artificial intelligence could wipe out humanity, a California federal judge has begun to shape the boundaries of a Silicon Valley trial that will feature the testimony of three tech CEOs....

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