Kai Ruan阮恺

Ph.D. student, Gaoling School of Artificial Intelligence, Renmin University of China

kairuan@ruc.edu.cn/Google Scholar/GitHub/Hugging Face

Experience

2026 –
Research Intern, ByteDance
Multimodal LLM reinforcement learning
2025
Research Intern, OpenBMB
Multimodal LLM reinforcement learning

Education

2023 –
Ph.D., Artificial Intelligence
Gaoling School of Artificial Intelligence, Renmin University of China
2019 – 2023
B.E., Computer Science
School of Artificial Intelligence, Xidian University

Selected Publications

Discovering physical laws with parallel symbolic enumeration
Kai Ruan, Yilong Xu, Ze-Feng Gao, Yang Liu, Yike Guo, Ji-Rong Wen, Hao Sun
Nature Computational Science, 2026  ·  Cover Article, Vol. 6 Issue 1
DOIPDFCode
Evaluating LLMs' scientific creativity and idea generation with minimal context
Kai Ruan, Xuan Wang, Jixiang Hong, Peng Wang, Yang Liu, Hao Sun
Nature Communications, 2026
DOIPDFCodeDatasetModel
MedXIAOHE: A comprehensive recipe for building medical MLLMs
ByteDance XiaoHe Medical AI
Technical report, 2026  ·  #2 Paper of the Day, Hugging Face
arXivPDF
Benchmarking LLMs' swarm intelligence
Kai Ruan, Mowen Huang, Ji-Rong Wen, Hao Sun
Preprint, 2025
PDFCode
AniMo: Species-aware model for text-driven animal motion generation
Xuan Wang*, Kai Ruan*, X Zhang, G Wang  (* equal contribution)
CVPR, 2025
PDFCode
X-MoGen: Unified motion generation across humans and animals
Xuan Wang*, Kai Ruan*, L Qian, Z Guo, C Su, G Wang  (* equal contribution)
AAAI, 2026
PDFCode
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