> I'm the only dev. I simply don't have time for dealing with the code from non-SOTA models. I'm doing all I can to keep this business afloat.

It sounds that your business is selling completely agent-coded products. I don't know how long that will be viable, or even if it is right now.

In my part of the world, I am completely unable to sell completely agent-coded products, so even a SOTA model is useless. The majority of my time is spent on analysis outside of coding anyway, so when I bill it's not based on how many lines of code I've added, it's based on whether the goal of the customer is satisfied.