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Matrix/reBot Arm B601-DM/MolmoAct2

Does MolmoAct2 run on reBot Arm B601-DM?

partial
T3 · community reportedlast verified 2026-10-24 · 1d agoLeRobot

Scope: Training evidenced by public checkpoint(s); on-robot inference not documented by a primary source.

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Capabilities

CapabilityStateNotesEvidence
Train / fine-tuneworksev-hub-harshmuriki-molmoact2-rebot, ev-hub-lilkm-molmoact2-birebot
Real-robot inferenceno verified evidence—
Simulation inferenceno verified evidence—
Teleop + recordno verified evidence—

Evidence 2 sources; the cell shows the highest tier

  1. T3 · community reportedhub-checkpointverified 2026-10-24 (1d ago)

    config.json type=molmoact2; train_config.json dataset Harshmuriki/rebot_pick_place_wrist_v3 whose meta/info.json robot_type=seeed_b601_dm_follower (Seeed plugin naming for the B601-DM, 100 episodes).

    https://huggingface.co/Harshmuriki/molmoact2_finetuned_seeed_rebot_100k
  2. T3 · community reportedhub-checkpointverified 2026-10-24 (1d ago)

    config.json type=molmoact2; train_config.json dataset lilkm/bi_rebot_pick_and_place_cubes whose meta/info.json robot_type=bi_rebot_b601_follower (bimanual B601-DM, 50 episodes).

    https://huggingface.co/lilkm/molmoact2_bi_rebot

MolmoAct2 inference speed by hardware robot-independent · inference cost only

ComputeRuntimePrecisionCamsp50 / p95 msInferenceMemPlatformSource
H100 80GBPyTorch eagerbf162——13 GBlerobot 0.6.1
conditions

os: Ubuntu 22.04 (repo tested with) · memory_sampling: nvidia-smi peak

Inference memory only (12.1 GiB peak GPU memory = 13.0 GB); no latency reported. LIBERO with two RGB cameras, chunk_size=10, 8 flow timesteps. Not task success.

T3 · community reported

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MolmoAct2 on reBot Arm B601-DM: partial

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History

  1. 2026-10-25 fecccd1 Initial release: robot policy compatibility matrix · Danilo Znamerovszkij