Evals and Observability · Building evals

Eval-Driven Development

Video + articles

Video

How To Build AI Evals

Hamel Husain · 34 min · July 17, 2026

Articles

Demystifying evals for AI agents

Anthropic Engineering · Anthropic · January 9, 2026

Product Evals in Three Simple Steps

eugeneyan.com · Eugene Yan · November 23, 2025

An LLM-as-Judge Won't Save The Product—Fixing Your Process Will

eugeneyan.com · Eugene Yan · April 20, 2025

Supplementary

The maturity phases of running evals — Phil Hetzel, Braintrust

AI Engineer · 19 min · May 27, 2026

Evals-Driven Development for a Mental Health AI Coach — Akele Reed & Dave Revere, SonderMind

AI Engineer · 21 min · July 25, 2026

Your Agent Evolved. Your Evals Didn't. — Ameya Bhatawdekar, Braintrust

AI Engineer · 24 min · August 20, 2026