From Error Analysis to Better Prompts: The Missing Step Most Teams Skip
26 Oct 2025 · 1 min

0:43
Hamel Husain explains the step most teams skip: after evals reveal errors, sample the failures, then adjust your prompts and instructions based on what you find. Deploy those changes at scale.
Questions this video answers
When you get to like the errors that you have, you're gonna use these evals and you're going to deploy it at scale. You're not looking at all your data, you're looking at a sample of data and you're going to deploy that at scale and you're going to like look at where are there errors. You have to make a judgment call. How do you improve your system based on the errors you're finding?










