The Developer's Guide to Not Going Broke on AI APIs

I remember my first month after bootcamp. I was so excited to finally build with real AI models - I'd spent weeks learning about transformers and attention mechanisms, and now I could actually use them. My first project was a chatbot for a local coffee shop. Just a simple menu assistant, right? Two weeks later, I got the bill. I nearly choked on my cold brew. Turns out I'd been burning through GPT-4o like it was free. My $50 credit lasted about 4 days. The coffee shop owner laughed and said "maybe next year." I was shocked.