The routing layer is where AI pipelines leak money
Most people burning $500–2k/month on AI API costs are making the same mistake. They default every request to their best (most expensive) model. Classification. Summarization. Format cleanup. Routing logic. All hitting Claude Sonnet or GPT-4o. The fix: add a classification layer before anything expensive runs. A cheap, fast model (Haiku, Flash, Mixtral) reads the request first and categorizes it. Simple task? Handled cheap. Complex reasoning needed? Routes up to the premium model. I added this to one pipeline and cut API spend by 68% in a week. Output quality didn't move. What's actually eating most of your API costs right now — do you know the breakdown?