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LiveUpdated 2026-09-19 18:39 UTC

A few of my smartest friends in AI called me a "idiot" for not deeply understanding evals.

A few of my smartest friends in AI called me a "idiot" for not deeply understanding evals. So...I found the smartest…

This is a dev post classified by Jev as AI dev tools (a tutorial), kept by the Dev Radar because it carries real work, not commentary.

A few of my smartest friends in AI called me a "idiot" for not deeply understanding evals. So...I found the smartest person I know on evals & made them teach me. @Vtrivedy10 (leads Labs at @LangChain) took me from easy mode to god mode for a 38-minute masterclass on all things evals. Easy Mode: what an eval actually is Definition: did the AI agent do the job correctly? You need two building blocks: 1) Tasks. The checkable jobs you care about. Log the meeting. Draft the email. Find Acme across the right Salesforce tables. 2) Verifiers. Something that can say right or wrong after the t

Posted by Alex Lieberman (315.3k followers) 5 days ago · 1k likes · 126.1k views · view the original post on X. Kept by the Dev Radar as AI dev tools.

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