I wonder how this will develop. I think it's a good idea in principle, but in practice those microtransactions will surely have fees too high to justify them. If settlements are made on the blockchain then fees are better, but you need to handle all the additional compliance issues of making such transactions.

But if it takes off, it will be a great incentive for agents to optimize for costs. Now it's a bit of a chaotic world where agents are let loose and they make sloppy low-value requests. Compute is not infinite, even if the current investment frenzy has us believe otherwise.