Microsoft CEO Satya Nadella on Thursday tweeted a video of his company’s first deployed massive AI system — or AI “factory” as Nvidia likes to call them. He promised this is the “first of many” such Nvidia AI factories that will be deployed across Microsoft Azure’s global data centers to run OpenAI workloads. Each system is a cluster of more than 4,600 Nvidia GB300s rack computers sporting the much-in-demand Blackwell Ultra GPU chip and connected via Nvidia’s super-fast networking tech called