MolmoBot relabeled directional next-to left/right — step 20,000
This repository contains the unsharded MolmoBot checkpoint from training step 20,000 of nth-lr-rel10-ie-mfe-best-30k-b16-32.
It was uploaded separately while training was still running because it had the best intermediate closed-loop success rate observed through step 24,000. This repository is a fixed snapshot of step 20,000; it will not be replaced by later checkpoints from the run.
Files
model.pt: unsharded MolmoBot model weightsconfig.yaml: effective MolmoBot training/model configurationintermediate_eval_step20000.json: compact closed-loop evaluation metadata
The checkpoint directory is directly usable by MolmoBot inference tooling and the vla-evaluation-harness MolmoBot model server.
Training
- Base model:
allenai/MolmoBot-DROID - Dataset:
ccwatson/RelabeledDirectionalPnPNextTo-10shard-left-right-only - Checkpoint step: 20,000
- Train/validation trajectories: 2,903 / 37
- Directions: left and right
- Action preset:
franka_joint - Camera preset:
franka_droid - Device/global batch size: 16 / 32
- Sequence length: 928
- Observation frames: 2, separated by 8 dataset steps
- Image augmentation: enabled
- Training task-description prompt randomization: disabled
Intermediate closed-loop evaluation
The checkpoint was evaluated on the 20-episode LR_10each unicorn benchmark: ten left episodes followed by ten right episodes.
- Success rate: 25% (5/20)
- Lax success rate: 25% (5/20)
- Coverage: 20/20 episodes
- Missing or duplicate episodes: 0
- Evaluation errors: 0
- Failed shards: 0
- Renderer: classic
- Parallel shards: 10
- Task horizon: 500 simulator steps
This is a small checkpoint-selection benchmark, not a final estimate over the full 81-left and 81-right benchmark suites.
Use
Download the repository to a local checkpoint directory:
hf download ccwatson/nth-lr-rel10-ie-mfe-best-20ksteps \
--local-dir /path/to/nth-lr-rel10-ie-mfe-best-20ksteps
Configure the MolmoBot model server with that directory as its checkpoint path. A valid local directory contains both config.yaml and model.pt.
Run provenance
- Training W&B run: https://wandb.ai/ccwatson/molmobot_finetune/runs/nhmj55qz
- Intermediate-eval W&B run: https://wandb.ai/ccwatson/molmobot_finetune/runs/external-eval-nth-lr-rel10-ie-mfe-best-30k-b16-32-step20000
- Dataset revision checked before training:
92a2fd1aed2cb6ae5e7af3963c0f2b1f19110738 - Upload date: July 24, 2026