This makes you, an ai inference user an unwitting AI company with a non scalable product.
The biggest mental trap people have fallen for is the notion of “best” and, always using the frontier model. Instead you should just bite the bulet and choose the cheapest or the best. This routing dance is just tokenmaxxing in disguise.
Edit: Another thing concerning me is that the models themselves are not concrete behind their endpoints. Models can be arbitrarily dumbed down by reducing their inference resources. Once Anthro/OAI release a new great model, they are fully incentivised to dumb down their current models to drive traffic to the new shiny more expensive one. In fact they can do this for any reason. Once they switch things behind the API interface, how useful is your meticulously tuned router? Not much at all.