---
library_name: lerobot
tags:
- model_hub_mixin
- pytorch_model_hub_mixin
- robotics
- dot
license: apache-2.0
datasets:
- lerobot/aloha_sim_transfer_cube_human
pipeline_tag: robotics
---

# Model Card for "Decoder Only Transformer (DOT) Policy" for ALOHA cube transfer problem

Read more about the model and implementation details in the [DOT Policy repository](https://github.com/IliaLarchenko/dot_policy).

This model is trained using the [LeRobot library](https://huggingface.co/lerobot) and achieves state-of-the-art results on behavior cloning on ALOHA bimanual insert dataset. It achieves 92.6% success rate vs. 83% for the previous state-of-the-art model (ACT). (Note: it looks like the LeRobot implementation is not deterministic of environment makes it easier than the original problem, I am comparing it with https://huggingface.co/lerobot/act_aloha_sim_transfer_cube_human).

You can use this model by installing LeRobot from [this branch](https://github.com/IliaLarchenko/lerobot/tree/dot_new_config)

To train the model:

```bash
python lerobot/scripts/train.py \
    --policy.type=dot \
    --dataset.repo_id=lerobot/aloha_sim_transfer_cube_human \
    --env.type=aloha \
    --env.task=AlohaTransferCube-v0 \
    --output_dir=outputs/train/pusht_aloha_transfer_cube \
    --batch_size=24  \
    --log_freq=1000 \
    --eval_freq=5000 \
    --save_freq=5000 \
    --offline.steps=100000 \
    --seed=100000 \
    --wandb.enable=true \
    --num_workers=24 \
    --use_amp=true \
    --device=cuda \
    --policy.optimizer_lr=0.0001 \
    --policy.optimizer_min_lr=0.0001 \
    --policy.optimizer_lr_cycle_steps=100000 \
    --policy.train_horizon=75 \
    --policy.inference_horizon=50 \
    --policy.lookback_obs_steps=20 \
    --policy.lookback_aug=5 \
    --policy.rescale_shape="[480,640]" \
    --policy.alpha=0.98 \
    --policy.train_alpha=0.99 \
    --wandb.project=transfer_cube
```

To evaluate the model:

```bash
python lerobot/scripts/eval.py \
    --policy.path=IliaLarchenko/dot_transfer_cube \
    --env.type=aloha \
    --env.task=AlohaTransferCube-v0 \
    --eval.n_episodes=1000 \
    --eval.batch_size=100 \
    --seed=1000000
```

Model size:
- Total parameters: 14.1m
- Trainable parameters: 2.9m