Dataset · Hugging Face

webagentlab/webchain-legacy

Name: webchain-legacy
Creator: webagentlab
License: cc-by-4.0
Keywords: license:cc-by-4.0, size_categories:100K<n<1M, format:parquet, modality:text, library:datasets, library:dask, library:polars, library:mlcroissant, arxiv:2603.05295, region:us, web-agent, gui-agent, multimodal, trajectory, grounding

WebChain WebChain is a large-scale, human-annotated dataset of real-world web interaction trajectories for training and evaluating GUI agents and web agents. WebChain contains 31,725 trajectories, 317,993 steps, and 428 unique domains. Its core contribution is a Triple Alignment of visual context, structural context, and action grounding, enabling supervision for both spatial grounding and long-horizon planning. Paper: https://arxiv.org/abs/2603.05295 Open access… See the full description on the dataset page: https://huggingface.co/datasets/webagentlab/webchain-legacy.

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Author / organization	webagentlab
License (as declared)	cc-by-4.0
Downloads	1.2K (as reported by Hugging Face)
Likes	9
Created	12 April 2026
Last updated at source	28 August 2026

web-agentgui-agentmultimodaltrajectorygroundingplanningaccessibility-treescreenshotreinforcement-learning

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