I think by the time AI becomes efficient enough to be profitable, it's going to be efficient enough to run locally and the whole AI as a service business model is going to collapse. We're basically in the mainframe era of AI right now, and we've seen this happen with many technologies before. There's no reason to think this case will be different.
Just to give you an idea of how fast this stuff is moving. Qwen 3.6 was just released and can be run on a high end laptop, it outperforms Qwen 3.5 from February which required a commercial grade server to run. https://qwen.ai/blog?id=qwen3.6-27b
