You can easily fit below 10 billion for the whole datacenter, then you only pay for electricity + maintenance + staff. 100k GPUs cost a few billion USD, that's more than enough to train frontier models, run experiments, and serve models in the EU to start. Look at what xAI did and how much it cost them and it's more expensive to do in US than in EU.

being able to train new frontier models is the new equivalent to nuclear capabilities.

i predict at some point countries will get CIA'ed when they publish plans to build a large data center.

Similar to the time when they got CIA'ed when announcing plans for new nuclear plants.

They are already CIA'ed on a regular basis for much less than that.