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OpenFrontiers: A Collection of Open Research Problems and a Benchmark for Scientific Rediscovery

Summary

OpenFrontiers introduces a cross-disciplinary corpus of 12,151 open research problems and a retrospective math benchmark of 200 problems with Lean 4 formalization, evaluated under closed-book, frozen-retrieval, and live-web conditions. Testing seven LLM agents shows closed-book rediscovery is rare (at most 7 of 40 resolved problems), while live-web success largely reflects retrieval of published solutions.

SourcearXiv AIAuthor: Jiarui Yao, Ruida Wang, Tong Zhang
OpenFrontiers: A Collection of Open Research Problems and a Benchmark for Scientific Rediscovery
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[Submitted on 27 Oct 2026]

Title:OpenFrontiers: A Collection of Open Research Problems and a Benchmark for Scientific Rediscovery

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Abstract:Large language models (LLMs) have shown increasing promise in research-level problem solving, yet a comprehensive collection of such problems is still missing, and evaluating them on research-level problems remains challenging. We introduce OpenFrontiers, a cross-disciplinary resource that combines a structured corpus of open research problems with a retrospective benchmark of recently resolved problems in mathematics. The corpus records problem statements, context, progress, and other information for 12,151 problems. The benchmark contains 200 problems, 110 resolved in 2026 and 90 still open, each with a Lean~4 statement checked by automated probes and two independent reviews; a subset HQ-50 further filters based on quality score, etc. Our evaluation protocol grades formal proofs with two independent checkers in an isolated sandbox under closed-book, frozen-retrieval, and live-web conditions. Evaluating seven LLM agents on the HQ-50 subset under a standardized budget, we find that closed-book rediscovery is rare, at most 7 of 40 resolved problems, whereas live-web success mostly reflects retrieval of published solutions. By linking a broad research-problem corpus to a formally graded evaluation subset with documented solutions, OpenFrontiers provides a foundation for measuring research-level rediscovery and studying progress toward solving currently open scientific problems. The dataset and benchmark could be found in this https URL.

Subjects:

Artificial Intelligence (cs.AI); Computation and Language (cs.CL); Machine Learning (cs.LG)

Cite as: arXiv:2610.37739 [cs.AI]

(or arXiv:2610.37739v1 [cs.AI] for this version)

https://doi.org/10.48550/arXiv.2610.37739

arXiv-issued DOI via DataCite (pending registration)

Submission history

From: Jiarui Yao [view email] [v1] Tue, 27 Oct 2026 16:49:33 UTC (137 KB)

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Key points

  • Corpus records 12,151 open research problems with statements, context, and progress information.
  • Benchmark includes 200 math problems (110 resolved in 2026, 90 still open), each with a Lean 4 statement verified by automated probes and two independent reviews.
  • HQ-50 subset further filters by quality score for standardized agent evaluation.
  • Closed-book rediscovery is rare (≤7/40); live-web success mainly reflects retrieval of published solutions.

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