Tomer Wolfson

Deep research systems can't handle questions involving dozens of documents.

Let me show you why this is (still) true 🧵and what does it all have to do with Grace Kelly? (1/)

Earlier today I presented our work on MoNaCo: a QA Benchmark over Dozens of Documents at #ACL2026! Thank you to everyone who attended, and a special thanks to my wonderful co-authors @harsh3vedi @megamor2 @DanRothNLP @yoavgo @DanRothNLP @tusharkhot Ashish Sabharwal @rtsarfaty

Many factual QA benchmarks have become saturated, yet factuality still poses a very real issue!

✨We present MoNaCo, an Ai2 benchmark of human-written time-consuming questions that, on average, require 43.3 documents per question!✨

📣Blogpost: allenai.org/blog/monaco

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