硅谷101·2025-11-15 05:38AI Investment & Capital Expenditure (CapEx) - Tech giants like Nvidia, Microsoft, Amazon, Google, and Meta are increasing their CapEx in AI infrastructure, leading to an "AI data center arms race" [1] - OpenAI's Stargate project, in collaboration with Microsoft and SoftBank, aims to create the largest AI computing cluster [1] - The AI industry is experiencing an "AI capital self-circulation" where tech giants invest in chips and data centers to power their AI models and drive platform growth [1] Market & Valuation Concerns - The market is questioning the rationality of current valuations, the timing of profit realization, and the speed of technology diffusion in the AI sector [1] - There are concerns about whether the "self-circulating" AI capital ecosystem is accelerating the formation of a bubble [1] Key Players & Partnerships - The collaboration between OpenAI, Nvidia, and Microsoft is potentially reshaping the tech capital landscape [1]