---
title: How to evaluate an AI agent
seo_title: How to evaluate an AI agent — video
description: Evaluating an agent requires measuring the whole task, traces, tools, cost, and recovery from failure. A convincing final answer is not enough.
keywords: AI agent evaluation, agent evals, agent benchmarks, traces, LLM as judge, task success, observability
date: '2026-07-14T00:00:00+00:00'
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    <div class="s5-video-watch__crumbs"><a href="https://5sigmas.com/en/videos/">All videos</a><span>AI agents</span><span>0:32</span></div>
    <h1>How to evaluate an AI agent</h1><p>Evaluating an agent requires measuring the whole task, traces, tools, cost, and recovery from failure. A convincing final answer is not enough.</p>
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    <div class="s5-video-watch__section-head"><span class="s5-eyebrow">Video summary</span><h2 id="video-summary-title">The ideas to retain</h2></div>
    <div class="s5-video-watch__snippet-grid"><article><span>01</span><h2>The unit of evaluation is a task</h2><p>A useful task should specify:</p></article>
<article><span>02</span><h2>Four dimensions worth measuring</h2></article>
<article><span>03</span><h2>1. Outcome</h2><p>Did the task finish correctly? This is the most visible dimension, but not the only one. The metric should represent partial results and distinguish “could not complete” from “completed…</p></article></div>
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  <aside class="s5-video-watch__source"><div><span class="s5-eyebrow">Context and evidence</span><h2>Continue with the full article</h2><p>The chapter develops the mechanism, primary sources, limitations and connections to the rest of the series.</p></div><a class="s5-video-watch__source-link" href="https://5sigmas.com/en/series/agentes-ia/03-como-evaluar-un-agente/">Read the article →</a></aside>
  <section class="s5-video-watch__related" aria-labelledby="related-videos-title"><div class="s5-video-watch__section-head"><span class="s5-eyebrow">Next step</span><h2 id="related-videos-title">Related videos</h2></div><div class="s5-video-watch__related-grid"><article><a href="https://5sigmas.com/en/videos/series/agentes-ia/05-de-la-demo-a-produccion/"><img src="https://5sigmas.com/en/series/agentes-ia/05-de-la-demo-a-produccion.jpg" alt="" loading="lazy" width="1280" height="720"><span>AI agents · 0:32</span><strong>From demo to production</strong></a></article>
<article><a href="https://5sigmas.com/en/videos/series/agentes-ia/04-seguridad-agentes/"><img src="https://5sigmas.com/en/series/agentes-ia/04-seguridad-agentes.jpg" alt="" loading="lazy" width="1280" height="720"><span>AI agents · 0:32</span><strong>Agent security</strong></a></article>
<article><a href="https://5sigmas.com/en/videos/series/agentes-ia/02-anatomia-de-un-agente/"><img src="https://5sigmas.com/en/series/agentes-ia/02-anatomia-de-un-agente.jpg" alt="" loading="lazy" width="1280" height="720"><span>AI agents · 0:32</span><strong>The anatomy of an agent</strong></a></article></div></section>
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