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PolitNuggets: Benchmarking Agentic Discovery of Long-Tail Political Facts

This paper introduces PolitNuggets, a multilingual benchmark for evaluating large reasoning models' ability to discover and synthesize long-tail political facts within agentic frameworks. It constructs political biographies for 400 global elites, covering over 10,000 facts. The authors propose FactNet, an evidence-conditional protocol for scoring discovery, fine-grained accuracy, and efficiency. Results show current systems struggle with fine-grained details and vary in efficiency. Diagnostics highlight the importance of short-context extraction, multilingual robustness, and reliable tool use.

SourcearXiv AIAuthor: Yifei Zhu

[2605.14002] PolitNuggets: Benchmarking Agentic Discovery of Long-Tail Political Facts

[Submitted on 13 May 2026]

Title:PolitNuggets: Benchmarking Agentic Discovery of Long-Tail Political Facts

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Abstract:Large Reasoning Models (LRMs) embedded in agentic frameworks have transformed information retrieval from static, long context question answering into open-ended exploration. Yet real world use requires models to discover and synthesize "long-tail" facts from dispersed sources, a capability that remains under-evaluated. We introduce PolitNuggets, a multilingual benchmark for agentic information synthesis via constructing political biographies for 400 global elites, covering over 10000 political facts. We standardize evaluation with an optimized multi agent system and propose FactNet, an evidence conditional protocol that scores discovery, fine-grained accuracy, and efficiency. Across models and settings, we find that current systems often struggle with fine-grained details, and vary substantially in efficiency. Finally, using benchmark diagnostics, we relate agent performance to underlying model capabilities, highlighting the importance of short-context extraction, multilingual robustness, and reliable tool use.

Comments: 24 pages, 7 figues, accpeted in The 64th Annual Meeting of the Association for Computational Linguistics (ACL 2026)

Subjects:

Artificial Intelligence (cs.AI)

Cite as: arXiv:2605.14002 [cs.AI]

(or arXiv:2605.14002v1 [cs.AI] for this version)

https://doi.org/10.48550/arXiv.2605.14002

arXiv-issued DOI via DataCite (pending registration)

Submission history

From: Yifei Zhu Mr. [view email] [v1] Wed, 13 May 2026 18:09:03 UTC (3,596 KB)

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