How I Used DSPy to Cut Claude API Costs by 73% (With Real Benchmarks)

I was spending ~$200/month on Claude API calls for an internal automation pipeline. After integrating DSPy and running 50 optimization cycles, the same pipeline costs $54/month — 73% less — with identical output quality. Here's exactly what I did. The Problem With Manual Prompting Manual prompt engineering has a fundamental flaw: you optimize for the examples you can think of , not for the distribution of real inputs. You write a prompt, test it on 5 cases, it looks good, you ship it, and then i