Yibo Peng彭艺博

Péng Yìbó (pronounced "penɡ EE-bor")

Carnegie Mellon University

Pittsburgh, Pennsylvania
Yibo Peng

About

I am Yibo Peng, a Research Assistant at InfiniAI Lab @ CMU, advised by Prof. Beidi Chen. My research focuses on AI security in real-world applications. I am also expanding my research through upcoming collaborations with Prof. David Wagner (UC Berkeley) and Prof. Bo Li (UIUC), and I actively collaborate with Prof. Huaxiu Yao on multimodal large language models.

I obtained my Master's degree in Artificial Intelligence Engineering from CMU. During my graduate studies, I worked under the supervision of Prof. Daniel Fried and PhD. Zora Wang, focusing on Code Generation and RAG.

Broadly, my research aims to address core challenges for AI agents: enhancing multimodal reasoning, optimizing collaboration, and ensuring safety and reliability.

🎓 I am actively seeking Ph.D. opportunities for Fall 2026. If you are interested in my work or potential collaborations, please feel free to contact me at yibopcmu@gmail.com.

News

[Dec 2025] 🔥 I will attend NeurIPS 2025 in San Diego, CA. Excited to catch up with old and new friends!
[Jun 2025] 🔥 I will be joining Prof. Beidi Chen's InfiniAI Lab @ CMU.

Selected Publications

Context-Contrastive Reinforcement Learning for Robust MLLM Reading
Yibo Peng*, Peng Xia*, Ding Zhong*, Kaide Zeng, Siwei Han, Yiyang Zhou, Jiaqi Liu, Ruiyi Zhang, Huaxiu Yao
Submitted to CVPR 2026
Code Agents Safety
When "Correct" Is Not Safe: Can We Trust Functionally Correct Patches Generated by Code Agents?
Yibo Peng*, James Song*, Lei Li*, Xinyu Yang, Mihai Christodorescu, Ravi Mangal, Corina Pasareanu, Haizhong Zheng, Beidi Chen
Submitted to ACL 2026
Accepted by ResponsibleFM @ NeurIPS 2025
MMedAgent-RL
MMedAgent-RL: Optimizing Multi-Agent Collaboration for Multimodal Medical Reasoning
Peng Xia*, Yibo Peng*, Jinglu Wang*, Kaide Zeng, Xian Wu, Xiangru Tang, Hongtu Zhu, Yun Li, Yan Lu, Huaxiu Yao
Submitted to ICLR 2026
Long-context Code Generation
Can Long-Context Language Models Solve Repository-Level Code Generation?
Yibo Peng, Zora Zhiruo Wang, Daniel Fried
arXiv preprint, 2025

Services

Reviewer: CVPR 2026, NeurIPS 2025 workshop, ICML 2025 workshop