A for loop calling the model once per ticket pays full price and competes with live traffic for the same rate limit. The Batch API processes up to 100,000 requests at once, at half the cost — for exactly the work that was never going to need an answer in three seconds.
Every new chat starts from zero — you paste in the same style guide, the same checklist, the same 'not like that' before Claude gets it right. Agent Skills let you write that knowledge down once, as a folder Claude opens only when the task actually needs it.
Retrieval-augmented generation is the difference between an AI that guesses and one that knows your business. Here's how it actually works, and when it's the wrong tool.
Leaderboards tell you which model is smartest in a vacuum. Shipping software tells you which model is cheapest, fastest, and most consistent for your exact task — a different question entirely.