Why Building an Eval Platform Is Harder Than It Looks — Braintrust
Source
youtube.com
Author
AI Engineer
Date
Why it matters
Lays out the stages teams pass through when scaling evalA repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.Full definition → and why nested AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → traces need purpose-built querying. Useful for deciding when to move beyond spreadsheets and how to turn production failures into tests.
Terms in this piece · Glossary
eval — A repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
