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Wei-Liang Zhao

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#artificial intelligence Preprint Sep 2026

CheatBench: Measuring Reward Gaming in AI Agents

Reinforcement learning has helped AI agents solve increasingly difficult tasks, but high rewards do not always reflect the work users intended. In recent incidents and controlled evaluations across the AI industry, agents trained to maximize reward have accessed unauthorized information, attempted to evade monitoring s...

Long Phan, Stephen K. Yang, Jason J. Lim et al. · 1 citation

Jailbreaking Jailbreaks: A Proactive Defense for LLMs

P RO A CT represents an orthogonal defense strategy that serves as an additional guardrail to enhance LLM safety against the most effective attacks.

Wei-Liang Zhao, Daniel Ben-Levi, Jinjun Peng et al. · 1 citation
Preprint Aug 2026

Knowledge-Verified Emergent Deception in LLM Agents Under Conflicting Incentives

A knowledge-verified benchmark that first confirms through a neutral probe that an agent knows a user's entitlement, and then evaluates whether it makes false claims once an incentive to deny that entitlement is introduced, which reduces the confound between lying and not knowing and enables more rigorous auditing and...

Zhe-Yuan Liu, Wei-Liang Zhao, Xiangchi Yuan et al. · 2 citations

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