Microsoft and OpenAI are planning a massive $100 billion AI supercomputer dubbed "Stargate"

Last year they were talking about having a private nuclear reactor. A project of that scale would require having a dedicated nuclear reactor, given that Frontier which cost only $600 million uses about 20 MW. A $100 billion supercomputer would probably have around 3,300 MW of energy consumption.

https://www.theverge.com/2023/9/26/23889956/microsoft-next-generation-nuclear-energy-smr-job-hiring