If existing search queries uses processing power and EPA is already nagging about it because it is a major greenhouse gas contributor and AI queries use even more processing not to mention the power needed to train a language model and hardware becoming more and more a bottleneck in development of these models faster. The question is, do you think Google, Microsoft or whatever will offer these services to entertain you?

But to put your mind in ease, most of the profits would come from small business using a custom model for their needs.