Update README.md

README.md

@@ -93,11 +93,13 @@ Aggregated across four safety dimensions (**Safety-4**):
 # Citation
 
 ```bibtex
-@techreport{k2think2025,
-  title   = {K2-Think: A Parameter-Efficient Reasoning System},
-  author  = {Zhoujun Cheng and Richard Fan and Shibo Hao and Taylor W. Killian and Haonan Li and Suqi Sun and Hector Ren and Alexander Moreno and Daqian Zhang and Tianjun Zhong and Yuxin Xiong and Yuanzhe Hu and Yutao Xie and Xudong Han and Yuqi Wang and Varad Pimpalkhute and Yonghao Zhuang and Aaryamonvikram Singh and Xuezhi Liang and Anze Xie and Jianshu She and Desai Fan and Chengqian Gao and Liqun Ma and Mikhail Yurochkin and John Maggs and Xuezhe Ma and Guowei He and Zhiting Hu and Zhengzhong Liu and Eric P. Xing},
-  year    = {2025},
-  institution = {Institute of Foundation Models, Mohamed bin Zayed University of Artificial Intelligence},
-  url     = {https://k2think-about.pages.dev/assets/tech-report/K2-Think_Tech-Report.pdf}
+@misc{cheng2025k2thinkparameterefficientreasoning,
+      title={K2-Think: A Parameter-Efficient Reasoning System}, 
+      author={Zhoujun Cheng and Richard Fan and Shibo Hao and Taylor W. Killian and Haonan Li and Suqi Sun and Hector Ren and Alexander Moreno and Daqian Zhang and Tianjun Zhong and Yuxin Xiong and Yuanzhe Hu and Yutao Xie and Xudong Han and Yuqi Wang and Varad Pimpalkhute and Yonghao Zhuang and Aaryamonvikram Singh and Xuezhi Liang and Anze Xie and Jianshu She and Desai Fan and Chengqian Gao and Liqun Ma and Mikhail Yurochkin and John Maggs and Xuezhe Ma and Guowei He and Zhiting Hu and Zhengzhong Liu and Eric P. Xing},
+      year={2025},
+      eprint={2509.07604},
+      archivePrefix={arXiv},
+      primaryClass={cs.LG},
+      url={https://arxiv.org/abs/2509.07604}, 
 }
 ```