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Agents find recent changes when asked, but not when they should look on their own

AspireAI community · arXiv (cs.CL, cs.AI)
BlindToChange measures whether AI agents proactively discover recent real-world events that change the answer they are supposed to give, using recommendation requests where an obvious candidate is no longer applicable because something recently happened. The events are pulled from Wikidata so the benchmark can be refreshed over time. The gap is large: up to 27.5 points between performance when the change is named explicitly and when it is not, even at high reasoning effort. Trajectory analysis attributes more than half the failures to agents simply not searching to verify whether a relevant fact had changed. The authors note that popular agentic search benchmarks such as BrowseComp cannot expose this failure mode, because those benchmarks state what needs to be found, which is precisely the assumption real users do not make.
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