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Auteurs principaux: Paul, Debjit, Murphy, Daniel, Gritta, Milan, Cardenas, Ronald, Prokhorov, Victor, Bolliger, Lena Sophia, Toker, Aysim, Miles, Roy, Oncescu, Andreea-Maria, Sivakumar, Jasivan Alex, Borchert, Philipp, Elezi, Ismail, Zhang, Meiru, Lee, Ka Yiu, Zhang, Guchun, Wang, Jun, Lampouras, Gerasimos
Format: Preprint
Publié: 2026
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Accès en ligne:https://arxiv.org/abs/2602.21143
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author Paul, Debjit
Murphy, Daniel
Gritta, Milan
Cardenas, Ronald
Prokhorov, Victor
Bolliger, Lena Sophia
Toker, Aysim
Miles, Roy
Oncescu, Andreea-Maria
Sivakumar, Jasivan Alex
Borchert, Philipp
Elezi, Ismail
Zhang, Meiru
Lee, Ka Yiu
Zhang, Guchun
Wang, Jun
Lampouras, Gerasimos
author_facet Paul, Debjit
Murphy, Daniel
Gritta, Milan
Cardenas, Ronald
Prokhorov, Victor
Bolliger, Lena Sophia
Toker, Aysim
Miles, Roy
Oncescu, Andreea-Maria
Sivakumar, Jasivan Alex
Borchert, Philipp
Elezi, Ismail
Zhang, Meiru
Lee, Ka Yiu
Zhang, Guchun
Wang, Jun
Lampouras, Gerasimos
contents Large language model (LLM)-based agents are increasingly used to solve complex tasks involving tool use, such as web browsing, code execution, and data analysis. However, current evaluation benchmarks do not adequately assess their ability to solve real-world tasks that require synthesizing information from multiple sources and inferring insights beyond simple fact retrieval. To address this, we introduce DEEPSYNTH, a novel benchmark designed to evaluate agents on realistic, time-consuming problems that combine information gathering, synthesis, and structured reasoning to produce insights. DEEPSYNTH contains 120 tasks collected across 7 domains and data sources covering 67 countries. DEEPSYNTH is constructed using a multi-stage data collection pipeline that requires annotators to collect official data sources, create hypotheses, perform manual analysis, and design tasks with verifiable answers. When evaluated on DEEPSYNTH, 11 state-of-the-art LLMs and deep research agents achieve a maximum F1 score of 8.97 and 17.5 on the LLM-judge metric, underscoring the difficulty of the benchmark. Our analysis reveals that current agents struggle with hallucinations and reasoning over large information spaces, highlighting DEEPSYNTH as a crucial benchmark for guiding future research.
format Preprint
id arxiv_https___arxiv_org_abs_2602_21143
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle A Benchmark for Deep Information Synthesis
Paul, Debjit
Murphy, Daniel
Gritta, Milan
Cardenas, Ronald
Prokhorov, Victor
Bolliger, Lena Sophia
Toker, Aysim
Miles, Roy
Oncescu, Andreea-Maria
Sivakumar, Jasivan Alex
Borchert, Philipp
Elezi, Ismail
Zhang, Meiru
Lee, Ka Yiu
Zhang, Guchun
Wang, Jun
Lampouras, Gerasimos
Artificial Intelligence
Computation and Language
Information Retrieval
Machine Learning
Large language model (LLM)-based agents are increasingly used to solve complex tasks involving tool use, such as web browsing, code execution, and data analysis. However, current evaluation benchmarks do not adequately assess their ability to solve real-world tasks that require synthesizing information from multiple sources and inferring insights beyond simple fact retrieval. To address this, we introduce DEEPSYNTH, a novel benchmark designed to evaluate agents on realistic, time-consuming problems that combine information gathering, synthesis, and structured reasoning to produce insights. DEEPSYNTH contains 120 tasks collected across 7 domains and data sources covering 67 countries. DEEPSYNTH is constructed using a multi-stage data collection pipeline that requires annotators to collect official data sources, create hypotheses, perform manual analysis, and design tasks with verifiable answers. When evaluated on DEEPSYNTH, 11 state-of-the-art LLMs and deep research agents achieve a maximum F1 score of 8.97 and 17.5 on the LLM-judge metric, underscoring the difficulty of the benchmark. Our analysis reveals that current agents struggle with hallucinations and reasoning over large information spaces, highlighting DEEPSYNTH as a crucial benchmark for guiding future research.
title A Benchmark for Deep Information Synthesis
topic Artificial Intelligence
Computation and Language
Information Retrieval
Machine Learning
url https://arxiv.org/abs/2602.21143