BreakingWeb benchmark: browser agents fail about half of controlled task variants

shuyanzh36 · x · 2026-10-27

The BreakingWeb benchmark (NeurIPS 2026) takes tasks strong browser agents can solve and creates challenging variants through controlled intervention of the web-app stack. Agents failed on about half of the variants, while humans were affected far less — exposing how brittle current browser agents' web generalization really is.

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