Microsoft CEO defends OpenAI's for-profit shift amid Elon Musk's lawsuit over alleged betrayal.

Microsoft CEO Satya Nadella testified in Elon Musk's lawsuit against OpenAI, defending the AI company's shift to a for-profit model as essential for its mission. Musk alleges OpenAI broke its founding contract by prioritizing commercial gain, with Microsoft accused of aiding this breach. Documents revealed Microsoft expects a $92 billion return on its $13 billion OpenAI investment, valuing its stake at $135 billion. The trial also covered the controversial 2023 firing and quick reinstatement of OpenAI CEO Sam Altman, with Nadella expressing concern about losing key talent amid competition.