Hamel Husain ranks AI eval methods: engineers can't replace human experts for subjective agent output

HamelHusain · x · 2026-10-21

Hamel Husain ranked AI eval methods from worst to best, and one point stands out: a human subject matter expert must review your agent's output — your engineers can't do it unless you're building an engineering agent. While teams widely build AI self-verification into engineering loops, anything subjective (marketing materials, GTM strategies) requires human judgment and taste.

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