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Weiqi Zhai

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#artificial intelligence Preprint Oct 2026

REVEAL: Reverse Engineering Agentic Latents from Frontier-Model Traces

Frontier LLM agents perform complex interactive tasks, but their inference costs motivate transferring their experience to smaller open-source agents. Distillation and latent communication typically require target-model training or access to source-model internals. We study how textual frontier-model trajectories can p...

Yue-Tian Du, Meng Wang, Yu-Cheng Wang et al. · 0 citations
Jul 2026

LongMedBench: Benchmarking Medical Agents for Long-Horizon Clinical Decision-Making

This work introduces LongMedBench, a real-world EHR-based benchmark for long-horizon clinical decision-making, and proposes an evaluation taxonomy with three suites: fact-based QA, temporal reasoning, and long-horizon decision-making.

Zihan Xu, Yan-Zhe Chen, Xiaochen Zhang et al. · 0 citations
Jul 2026

Before the Action: Benchmarking LLMs on Prospective Hypothesis Discovery

Results support treating PHD as a distinct target for evaluating how LLMs formulate investigative directions when final conclusions are withheld, with gains for several lower-performing models on HypoArena but regressions for other systems, including a top-performing model.

Tianyun Zhong, Wangyi Jiang, Wei Wang et al. · 0 citations
Review Aug 2026

Science Edge Evaluation: SEE the Missing Step Toward Real Scientific Discovery

Evaluation of 19 multimodal large language models shows that current MLLMs still cannot reliably make justified and evidence-bounded inferences from experimental results, which is an essential capability in real scientific discovery.

Tao Han, Yucheng Zhang, Jing-Hang Wang et al. · 1 citation
Preprint Aug 2026

Right Answer, Wrong Method: Shortcut Hacking Misleads the Evaluation of LLM Reasoning on Frontier Science Benchmarks

Solution Hacking is identified, a failure mode in which an LLM reaches the correct answer through invalid shortcuts, such as numerical search, enumeration, guessing, or answer-first verification, without providing a valid task-targeted derivation.

Xuanhua Ren, Weiqi Zhai, Tianle Pu et al. · 0 citations

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