The O'Reilly cover of Evals for AI Engineers, illustrated with two reddish-brown animals on a branch.
Published by O'Reilly

Evals for
AI Engineers

Systematically measuring and improving AI applications

How do you know if your AI application is working? This book shows you how to find its failures and build evaluations that help you improve it.

A practical guide to error analysis, building automated evaluators, and monitoring AI in production. Build a continuous improvement loop that makes your AI more reliable and less costly to run.

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AI Evals for Engineers & PMs with Hamel Husain and Shreya Shankar. Course card showing the instructors, a 4.7 rating from 887 reviews, and 4,500+ alumni.

Learn with us

AI Evals for Engineers & PMs

Build and evaluate AI systems with us in our live course. We teach current techniques and continually update the material as AI evolves.

  • 8+ hours of live office hours for feedback on your projects.
  • Lifetime access to recordings and course materials.
  • Unlimited retakes of future cohorts, including office hours.
  • Ongoing access to our private Discord community.
See the course on Maven (25% off)

Further reading

Choose a guide based on where you are with evals.

Choose a reading guide for your experience with evals
Where are you?This sounds like me
I'm new to evalsI've heard the term, but I'm not sure what evals involve or whether I need them.
I don't know what to testI'm building an AI product, but I haven't figured out which failures to measure or what good performance looks like.
I don't trust my eval scoresWe have evals, but the scores don't match our judgment of the outputs, or tests pass while users still encounter problems.
My product feels too hard to evaluateOur outputs are subjective, long, or involve many steps. Even a knowledgeable person has trouble deciding whether they're right.
Evals take too much time or moneyWe're spending too much effort reviewing outputs, maintaining tests, or running evaluators.

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