Don't forget that OpenAI also has a similarly-massive deal with Oracle and another one with Nvidia. And its own Stargate initiative. And probably a couple more massive contracts with neoclouds to use more stuff.

Like best possible scenario is OpenAI merely optioning from literally everybody because they don't think they have a shot at getting any capacity otherwise. There is just no possible way that they can actually afford all of the buildouts. For that matter, there's not even any possible way for all of these buildouts to actually be completed.