.@martin_casado on the paradox that makes model routing an "AI-complete problem": "Let's imagine you're trying to answer the question, what question does the smartest thing in the universe need to answer? You need the smartest thing in the universe to answer that question." "The only thing that can answer that question is the smartest model, and then in which case you just give it to the smartest model." "Clearly the frontier models are getting very jagged. This isn't a core technical…