LingBot-VA ARX SFT Teacher — NO train/test split (all 199), step 3000

Video-action world-model (LingBot-VA) fine-tuned on the full ARX WAM-OPD dataset (all 199 episodes, no holdout) — the contract-deliverable teacher.

This is the no-split line. Its training upper bound was 3000 steps (contract), so there is no 5000-step checkpoint for this line — the 5000-step run is the separate 160-episode split teacher (used only for the overfitting diagnostic). This checkpoint (step 3000) is the final schedule checkpoint of the no-split teacher.

Provenance

Base model Robbyant/lingbot-va-base @ 5fbd004a…
Dataset ylhaichen04/WAM-OPD_4Tasks @ 651338c2… (LeRobot v2.1, all 199 ep / 64,417 frames)
Split none (all 199 for training, no holdout)
Temporal video_7p5hz_action_15hz_k2 (K=2)
Action 14-D absolute joint -> 30-D [14-19,28,21-26,29], dataset q01/q99
Precision / optim BF16 FSDP, AdamW lr 5e-6, grad clip 2.0, CFG 0.1
This checkpoint step 3000 (final; no 5000 for this line)

transformer/ = diffusers-format WanTransformer3DModel. Switch attn_mode to torch/flashattn for inference (training used flex).

Selection note

Because the no-split line has no holdout, step 3000 is a final schedule checkpoint, not a validation-selected best. Checkpoint selection for deployment should be done by real-robot evaluation.

Downloads last month
-
Safetensors
Model size
5B params
Tensor type
BF16
·
Video Preview
loading