Three ways you get in trouble when building an app: 1. Always calling the best model 2. Always calling the cheapest model 3. Always calling a mid model The first strategy will be very expensive. The second strategy is just dumb. The third strategy is just mediocre. The proper solution is to use a router and decide which model is best for a particular request. Check out these guys. Their platform lets you select a model and a specific reasoning effort for each request. This keeps the…