Microsoft CEO Satya Nadella and Elon Musk have criticized the Stargate AI venture announced by Donald Trump, despite Microsoft’s backing of OpenAI, which is involved in the project. Nadella emphasized Microsoft’s commitment to real-world applications of AI, while Musk questioned Stargate's financial viability. Tensions escalated between Musk and OpenAI CEO Sam Altman, stemming from past collaborations and rivalries, as Musk labels Altman a "swindler" amid ongoing disputes.