Hi, I'm Zhehao Zhang

I'm a PhD Student in Computer Science at The Ohio State University, working on Language Agents.

Outstanding Paper Award EMNLP 2026 SkillHarm

I am a second year PhD student in Computer Science & Engineering at The Ohio State University and a member of the OSU NLP Lab, advised by Prof. Yu Su and closely collaborating with Prof. Huan Sun. Previously, I worked as a Research Intern at Stanford SALT Lab, Netflix, Amazon, Adobe Research, and Microsoft Research Lab โ€“ Asia. I received my Master's degree from Dartmouth College and Bachelor's degree in Artificial Intelligence Honor Class at Shanghai Jiao Tong University.
My research interests lie in Language Agents, Agent Safety, (Recursive) Self-Evolving Agents, and LLM Alignment. I focus on developing methods to evaluate and improve the safety, robustness, and reliability of language agents and LLMs in real-world applications. I believe that agentic AI will drive the next industrial revolution, and I am excited to build agents that are not only capable but also safe, trustworthy, and continually self-improving.
Please feel free to contact me by email (zhang.16420@osu.edu) for collaboration opportunities!

News

2026 Oct ๐Ÿ† SkillHarm received an Outstanding Paper Award at EMNLP 2026!
2026 Oct ๐Ÿ“„ Introducing Realtime-Bench, our new benchmark for real-time interactive agents. Paper and code are available.
2026 Oct ๐ŸŽ‰ QUEST, on training frontier deep research agents with fully synthetic tasks, is accepted to NeurIPS 2026!
2026 Sept ๐ŸŽ‰ SkillHarm, on lifecycle-aware skill-based attacks via automated construction, is accepted to EMNLP 2026 Main!
2026 July ๐ŸŽ‰ Distractor Injection Attacks on Large Reasoning Models is accepted to COLM 2026!
2026 June Joined Netflix as a Machine Learning Intern, working on language agents for automatic video editing.
2026 May ๐ŸŽ‰ Two papers, AutoElicit and Misaligned Action Detection, are accepted to ICML 2026!
2026 May ๐Ÿ… Recognized as a Gold Reviewer for ICML 2026.
2025 Nov ๐ŸŽ‰ VipAct, on visual-perception enhancement via specialized VLM agent collaboration and tool-use, is accepted to AAAI 2026!
2025 Sept โœˆ๏ธ Received the COLM 2025 Travel Grant.
2025 Sept ๐ŸŽ“ Started my PhD journey at the OSU NLP Group, working on language agents, supported by an OSU Fellowship.
2025 July ๐Ÿ“ฐ Our FalseReject work is featured on the Amazon Science Blog and AI Era.
2025 July ๐ŸŽ‰ FalseReject, a resource for improving contextual safety and mitigating over-refusals in LLMs via structured reasoning, is accepted to COLM 2025. See you in Montreal!
2025 Mar ๐ŸŽ‰ Personalization of Large Language Models: A Survey is accepted to TMLR.
2024 Nov Joined Amazon as an Applied Scientist Intern in Seattle.
2024 Sept 25 ๐ŸŽ‰ The DARG paper is accepted to NeurIPS 2024. See you in Vancouver!
2024 Sept 20 ๐ŸŽ‰ One first-author paper on vision language models for academic chart generation is accepted to EMNLP 2024. See you in Miami!
2024 Sept 5 ๐ŸŽค Honored to give a talk on Recent Advances in Synthetic Data for Foundation Models at Stanford SALT Lab. Slides.
2024 June 25 ๐Ÿ“„ A new preprint is released! Please check DARG, a dynamic evaluation framework that augments current reasoning benchmarks from the level of reasoning graphs.
2024 Mar 13 ๐ŸŽ‰ One first-author paper on LLMs for hierarchical table analysis is accepted to NAACL 2024. See you in Mexico City!
2024 Mar ๐ŸŽค Honored to give a talk on Augmented Language Models at TRIP Lab at Dartmouth, hosted by Prof. Yaoqing Yang. Slides and Recording.
2024 Feb I will join Adobe Research as a Research Intern this summer. See you in San Jose and the Bay Area!
2023 Dec 14 ๐ŸŽ‰ One first-author paper from my undergraduate is accepted to ICASSP 2024.
2023 Oct 27 ๐ŸŽ‰ The paper "Can Large Language Models Transform Computational Social Science?" is accepted to Computational Linguistics.
2023 Oct 7 ๐ŸŽ‰ Two first-author papers (CRT-QA and Hate Speech Detection) from my undergraduate are accepted to EMNLP 2023. See you in Singapore!