update.

rl-introduction.bbl

-\begin{thebibliography}{173}
+\begin{thebibliography}{175}
 \providecommand{\natexlab}[1]{#1}
 \providecommand{\url}[1]{\texttt{#1}}
 \expandafter\ifx\csname urlstyle\endcsname\relax
@@ -319,10 +319,15 @@ Hunter Lightman, Vineet Kosaraju, Yuri Burda, Harrison Edwards, Bowen Baker, Ted
 \newblock In \emph{The Twelfth International Conference on Learning Representations, {ICLR} 2024, Vienna, Austria, May 7-11, 2024}. OpenReview.net, 2024{\natexlab{b}}.
 \newblock URL \url{https://openreview.net/forum?id=v8L0pN6EOi}.
 
-\bibitem[Liu et~al.(2026)Liu, Wang, Wu, Huang, Li, Jiao, and Zhang]{liu-etal:agentic}
+\bibitem[Liu et~al.(2026{\natexlab{a}})Liu, Liu, Liang, Li, Liu, Wang, Wan, Zhang, and Ouyang]{liu-etal:flow}
+Jie Liu, Gongye Liu, Jiajun Liang, Yangguang Li, Jiaheng Liu, Xintao Wang, Pengfei Wan, Di~Zhang, and Wanli Ouyang.
+\newblock Flow-grpo: Training flow matching models via online rl.
+\newblock \emph{Advances in neural information processing systems}, 38:\penalty0 40783--40818, 2026{\natexlab{a}}.
+
+\bibitem[Liu et~al.(2026{\natexlab{b}})Liu, Wang, Wu, Huang, Li, Jiao, and Zhang]{liu-etal:agentic}
 Xiaoqian Liu, Ke~Wang, Yuchuan Wu, Fei Huang, Yongbin Li, Jianbin Jiao, and Junge Zhang.
 \newblock Agentic reinforcement learning with implicit step rewards.
-\newblock In \emph{International Conference on Learning Representations}, volume 2026, pp.\  129271--129291, 2026.
+\newblock In \emph{International Conference on Learning Representations}, volume 2026, pp.\  129271--129291, 2026{\natexlab{b}}.
 
 \bibitem[Liu et~al.(2023)Liu, Iter, Xu, Wang, Xu, and Zhu]{liu-etal:2023GEval}
 Yang Liu, Dan Iter, Yichong Xu, Shuohang Wang, Ruochen Xu, and Chenguang Zhu.
@@ -772,6 +777,11 @@ Tong Xiao and Jingbo Zhu.
 \newblock \emph{ArXiv preprint}, abs/2501.09223, 2025.
 \newblock URL \url{https://arxiv.org/abs/2501.09223}.
 
+\bibitem[Xiao et~al.(2026)Xiao, Ruan, Li, Yu, Zhang, and Zhu]{xiao-etal:ordinary}
+Tong Xiao, Junhao Ruan, Bei Li, Zhengtao Yu, Min Zhang, and Jingbo Zhu.
+\newblock Ordinary differential equations in vision and language.
+\newblock 2026.
+
 \bibitem[Xie et~al.(2025)Xie, Gao, Ren, Luo, Hong, Dai, Zhou, Qiu, Wu, and Luo]{xie-etal:2025logic}
 Tian Xie, Zitian Gao, Qingnan Ren, Haoming Luo, Yuqian Hong, Bryan Dai, Joey Zhou, Kai Qiu, Zhirong Wu, and Chong Luo.
 \newblock Logic-rl: Unleashing llm reasoning with rule-based reinforcement learning.

rl-introduction.bib

@@ -4,6 +4,23 @@
 
 
 
+@article{liu-etal:flow,
+  title={Flow-grpo: Training flow matching models via online rl},
+  author={Liu, Jie and Liu, Gongye and Liang, Jiajun and Li, Yangguang and Liu, Jiaheng and Wang, Xintao and Wan, Pengfei and Zhang, Di and Ouyang, Wanli},
+  journal={Advances in neural information processing systems},
+  volume={38},
+  pages={40783--40818},
+  year={2026}
+}
+
+@article{xiao-etal:ordinary,
+  title={Ordinary Differential Equations in Vision and Language},
+  author={Xiao, Tong and Ruan, Junhao and Li, Bei and Yu, Zhengtao and Zhang, Min and Zhu, Jingbo},
+  year={2026},
+  publisher={TechRxiv}
+}
+
+
 @article{zhou-etal:learning,
   title={Learning implicit credit assignment for cooperative multi-agent reinforcement learning},
   author={Zhou, Meng and Liu, Ziyu and Sui, Pengwei and Li, Yixuan and Chung, Yuk Ying},