"OpenAI has projected that the cost of training large AI models will increase from $100 million to $500 million by 2030, with the cost of training a single model ranging from $3 million to $12 million. The cost of training a model on a large dataset can be even higher, reaching up to $30 million [12]."

https://insight.openexo.com/how-much-is-invested-in-artificial-intelligence/

@Vorak good point.

I'm thinking about the enormous expense involved in converting data centers from pre to post AI. The additional hardware, labor and power requirements are missing from the discussions.