I’m running a service that uses AI APIs as a side project, and after taking this course, I applied model routing and caching with agents. It seems to have reduced my usage by around 20%, though I still need to experiment with it further. Rather than simply listing tips, the course explains why these approaches are necessary based on code, which made it easier to understand. That said, the techniques covered in the course are things I hadn’t paid attention to before taking it, but they are also the kind of information you can find if you do some research afterward. However, there aren’t many resources that properly organize everything around real-world examples in one place. So it was helpful for quickly reviewing concepts I was unfamiliar with from start to finish, understanding how to use them for monetization, and grasping their importance.