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cs.AI2026
HELIX: Model-Harness Co-evolution for Recursive Self-Improvement
Tianyu Fan, Chao Huang
Scaling agent capability has largely focused on improving the model, yet an interactive agent acts through a runtime harness that mediates context, tools, control flow, and stoppin…
cs.AI2025
Needle in the Web: A Benchmark for Retrieving Targeted Web Pages in the Wild
Yumeng Wang, Tianyu Fan, Lingrui Xu +1
Large Language Models (LLMs) have evolved from simple chatbots into sophisticated agents capable of automating complex real-world tasks, where browsing and reasoning over live web…
cs.AI2025
Understanding DeepResearch via Reports
Tianyu Fan, Xinyao Niu, Yuxiang Zheng +5
DeepResearch agents represent a transformative AI paradigm, conducting expert-level research through sophisticated reasoning and multi-tool integration. However, evaluating these s…