SciMaster: Towards General-Purpose Scientific AI Agents, Part I. X-Master as Foundation: Can We Lead on Humanity's Last Exam?

Fuente: arXiv
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Autori principali: Chai, Jingyi, Tang, Shuo, Ye, Rui, Du, Yuwen, Zhu, Xinyu, Zhou, Mengcheng, Wang, Yanfeng, E, Weinan, Zhang, Yuzhi, Zhang, Linfeng, Chen, Siheng
Natura: Preprint
Pubblicazione: 2025
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author Chai, Jingyi
Tang, Shuo
Ye, Rui
Du, Yuwen
Zhu, Xinyu
Zhou, Mengcheng
Wang, Yanfeng
E, Weinan
Zhang, Yuzhi
Zhang, Linfeng
Chen, Siheng
author_facet Chai, Jingyi
Tang, Shuo
Ye, Rui
Du, Yuwen
Zhu, Xinyu
Zhou, Mengcheng
Wang, Yanfeng
E, Weinan
Zhang, Yuzhi
Zhang, Linfeng
Chen, Siheng
contents The rapid advancements of AI agents have ignited the long-held ambition of leveraging them to accelerate scientific discovery. Achieving this goal requires a deep understanding of the frontiers of human knowledge. As such, Humanity's Last Exam (HLE) provides an exceptionally challenging touchstone for evaluating scientific AI agents. In this work, we aim to construct the foundational architecture for general-purpose agents and validate the capabilities through leading performance on HLE. To achieve this, we introduce X-Master, a tool-augmented reasoning agent designed to emulate human researchers by interacting flexibly with external tools during its reasoning process. This agent, guided by the conceptualization of code as an interaction language, can flexibly leverage built-in Python libraries and our customized tools to augment the reasoning. We further scale its capabilities through X-Masters, a scattered-and-stacked agentic workflow that systematically enhances breadth and depth of reasoning. Our open-source solution, X-Masters, sets a new state-of-the-art record on HLE with a score of 32.1%, surpassing OpenAI's and Google's Deep Research (26.6% and 26.9%) and becoming the first to exceed the 30% threshold. This work allows us to gain a deeper understanding of complex task-solving and accumulates valuable experience that can inform future advancements, guiding subsequent model training.
format Preprint
id arxiv_https___arxiv_org_abs_2507_05241
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SciMaster: Towards General-Purpose Scientific AI Agents, Part I. X-Master as Foundation: Can We Lead on Humanity's Last Exam?
Chai, Jingyi
Tang, Shuo
Ye, Rui
Du, Yuwen
Zhu, Xinyu
Zhou, Mengcheng
Wang, Yanfeng
E, Weinan
Zhang, Yuzhi
Zhang, Linfeng
Chen, Siheng
Artificial Intelligence
Computation and Language
The rapid advancements of AI agents have ignited the long-held ambition of leveraging them to accelerate scientific discovery. Achieving this goal requires a deep understanding of the frontiers of human knowledge. As such, Humanity's Last Exam (HLE) provides an exceptionally challenging touchstone for evaluating scientific AI agents. In this work, we aim to construct the foundational architecture for general-purpose agents and validate the capabilities through leading performance on HLE. To achieve this, we introduce X-Master, a tool-augmented reasoning agent designed to emulate human researchers by interacting flexibly with external tools during its reasoning process. This agent, guided by the conceptualization of code as an interaction language, can flexibly leverage built-in Python libraries and our customized tools to augment the reasoning. We further scale its capabilities through X-Masters, a scattered-and-stacked agentic workflow that systematically enhances breadth and depth of reasoning. Our open-source solution, X-Masters, sets a new state-of-the-art record on HLE with a score of 32.1%, surpassing OpenAI's and Google's Deep Research (26.6% and 26.9%) and becoming the first to exceed the 30% threshold. This work allows us to gain a deeper understanding of complex task-solving and accumulates valuable experience that can inform future advancements, guiding subsequent model training.
title SciMaster: Towards General-Purpose Scientific AI Agents, Part I. X-Master as Foundation: Can We Lead on Humanity's Last Exam?
topic Artificial Intelligence
Computation and Language
url https://arxiv.org/abs/2507.05241