Projecting BrowseComp-Plus onto ClimbMix: Toward More Realistic Corpora for Agentic Search

The BrowseComp-Plus benchmark disentangled the evaluation of agentic search by replacing opaque web search with a fixed corpus, so that an agent's role can be separated from the retriever's. That corpus, however, holds only about 100K documents and was assembled from the supporting documents of the ...