Live

New this week23 datasets listed, 645,000+ hSee what is listed

Home · Open data · Manipulation · Robot video

MolmoAct Dataset

10,000+ robot trajectories collected in-house by Ai2, household and tabletop subsets, two scene views plus wrist camera, with language; CC BY 4.0.

Published by Allen Institute for AI (Ai2), 2025-08

Open data
Commercial use OK

CC BY 4.0

PriceFree

The publisher's licence permits commercial use and redistribution, with attribution. Card states: This dataset is licensed under CC BY-4.0. It is intended for research and educational use in accordance with Ai2's Responsible Use Guidelines; the guidelines are a request, not a licence term.

Get dataset Opens huggingface.co in a new tab
From a terminal
hf download allenai/MolmoAct-Dataset --repo-type dataset --include molmoact_dataset_tabletop/* --local-dir ./MolmoAct-Dataset

Public, no gate. Two folders, molmoact_dataset_household and molmoact_dataset_tabletop, about 814 GB together; the command pulls the tabletop one. Images are stored inside the parquet files rather than as MP4.

Specification, as published

Episodes (stated)
10,000 episodes
Scale
over 10,000 high quality robot trajectories
Task
Tidying & put-away, Laundry & folding, Pick & place, Other
Environment
Indoor – home, Indoor – lab
Modality
RGB, Proprioception, Actions, Language
Capture
Exocentric
In frame
Robot hands
Captured in
North America
Embodiment
single-arm robot with parallel gripper (model not named on the card)
Formats
Parquet
Size
about 814 GB on the Hub
Hosted on
Hugging Face

Figures are the publisher's own. Kinetic Blocks has not measured this dataset.

About this dataset

The mid-training dataset behind Ai2's MolmoAct action reasoning models, collected in-house by Ai2 and published in LeRobot-style parquet. Two subsets: household (tasks such as arranging pillows on a couch or putting away laundry) and tabletop. Each step carries two third-person views and a wrist camera image, a 7-dimensional state and action, and the natural-language task. The card asks that use follow Ai2's Responsible Use Guidelines.

Publisher's own task names: arranging pillows on a living room couch, putting away laundry in a bedroom, tabletop manipulation.

What Kinetic Blocks did, and did not do

Indexed and linked from the publisher. Not hosted, verified or graded by Kinetic Blocks. The publisher's terms govern. The licence shown is the one stated on the publisher's page, linked above. Nothing on this page is a claim by Kinetic Blocks.

Want the verified ones too?

Request access to the marketplace, where verified listings are checked against their files and graded A+ to F, and your money waits until the data holds up.