Arvind Narayanan: building an eval IS building the agent — effort shifts from making to measuring

random_walker · x · 2026-10-20

Responding to the claim that "agent evals are about to become as important as building the agents themselves," Princeton's Arvind Narayanan goes further: building an eval is what it means to build an agent. His ICML talk argues that as AI capabilities advance, human effort shifts from building to evaluation across domains — agents (new eval community), research (beyond benchmark-driven peer review), science, software engineering, and companies (evals as the new IP). His metaphor: humans move from rowing the boat to steering, navigating, and deciding where to go.

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