Eval-driven development: Lessons from evaluating GenAI at scale

This is a great write up about how Airbnb ships AI features that actually work. Basically, the answer is they test them. What a concept! It sounds really dumb and obvious when you say it out loud, but it’s been surprising to me how many teams are shipping LLM-based systems to production with no test harnesses or evals at all. Expect to spend a meaningful share of your total project effort on…