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| Paper row | Table 17 / Figure 4: RoboTwin 2.0 'beat block hammer' baseline (0/18 dropped) |
| Dropped blocks | none (full model) |
| Recovery training | single-task RoboTwin 2.0, batch size 16, 30K steps, lr 5e-5 |
| RoboTwin 2.0 success rate | Easy 32 / Hard 16 (100 episodes each) |
1python scripts/serve_policy_batch_drop.py \
2 --config pi05_libero_dropped \
3 --dir <this_repo_local_path> \
4 --port 8000llm_drop_attn_list / llm_drop_mlp_list shown above (via config or CLI) when serving,
otherwise layers will be mismatched. assets/ contains the LIBERO norm stats.
The optimizer state (train_state/) is not included.1@article{sun2026vladrop,
2 title={Drop-Then-Recovery: How Redundant Are Vision-Language-Action Models?},
3 author={Sun, Guoheng and Feng, Kaixi and He, Shwai and Gong, Xiaochuan and He, Yexiao and Wang, Ziyao and Shen, Zheyu and Ye, Wanghao and Kompella, Ramana Rao and Liu, Gaowen and Li, Ang},
4 journal={arXiv preprint arXiv:2606.27755},
5 year={2026}
6}