Multi-GRPO: Multi-Group Advantage Estimation for Text-to-Image Generation with Tree-Based Trajectories and Multiple Rewards

Multi-GRPO: Multi-Group Advantage Estimation for Text-to-Image Generation with Tree-Based Trajectories and Multiple Rewards

30 November 2025

Qiang Lyu

Zicong Chen

Chongxiao Wang

Haolin Shi

Shibo Gao

Ran Piao

Youwei Zeng

Jianlou Si

Fei Ding

Jing Li

Chun Pong Lau

Weiqiang Wang

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