titleBeyond Simply Environment Scaling: Designing Effective Environment Distributions for Multimodal Agent Learning
authorsKejian Zhu, Zhuoran Jin, Dongqi Huang, Hongbang Yuan, Yupu Hao, Kang Liu, Jun Zhao
date2026-08-06
venuearXiv (preprint, not peer reviewed)
idarXiv:2608.03571
affiliationChinese Academic of Science Institute of Automation
upvotes41 (Hugging Face Daily Papers, 2026-11-01)
linksabs pdf hf code
abstractRecent works train agents by constructing large-scale multimodal environment pools. However, we find that simply increasing the number of multimodal environments does not always benefit. We further analyze the limitations in current multimodal environment distributions through a series of experiments. Based on these findings, we study how to build more effective training environment distributions from two dimensions: **diversity** and **difficulty structure**. For diversity, we propose **Ability-aware Environment Selection (AES)** to obtain diverse environment sets. For difficulty structure, we propose **Hierarchical Difficulty Curriculum (HDC)**, which organizes curriculum learning through two difficulty levels: harness weakening and state-scale progression. Experiments show that AES and HDC effectively improve multimodal agent training.

cite

@misc{zhu2026beyond,
  title={Beyond Simply Environment Scaling: Designing Effective Environment Distributions for Multimodal Agent Learning},
  author={Kejian Zhu and Zhuoran Jin and Dongqi Huang and Hongbang Yuan and Yupu Hao and Kang Liu and Jun Zhao},
  year={2026},
  eprint={2608.03571},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2608.03571}
}