{"url":"/dataset/sa-1b","name":"SA-1B","full_name":null,"description_markdown":"**SA-1B** consists of 11M diverse, high resolution, licensed, and privacy protecting images and 1.1B high-quality segmentation masks.\r\n\r\nSource: [Segment Anything](https://arxiv.org/pdf/2304.02643v1.pdf)\r\n\r\nImage Source: [Segment Anything](https://arxiv.org/pdf/2304.02643v1.pdf)","description_withheld":null,"homepage":"https://segment-anything.com","introduced_date":"2023-04-05","introduced_date_note":null,"introduced_by":{"paper":"/paper/segment-anything","title":"Segment Anything","first_author":"Alexander Kirillov","url":null},"license":null,"modalities":[{"name":"Images","url":"/datasets/modality/images"}],"tasks":[{"name":"Image Segmentation","url":"/task/image-segmentation","datasets_with_task":"/datasets/task/image-segmentation"},{"name":"Segmentation","url":"/task/segmentation","datasets_with_task":"/datasets/task/segmentation"}],"languages":[],"variants":["SA-1B"],"data_loaders":[],"num_papers_in_archive":183,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[{"leaderboard":"/sota/segmentation-on-sa-1b","task":"Segmentation","dataset_variant":"SA-1B","rows":2,"metrics":["Average Precision","AR-small","AR-medium","AR-large"],"first_row_in_archive_order":{"model":"unSAM+ (Semi-supervised)","paper":"/paper/segment-anything-without-supervision","metrics":{"AR-large":"76.5","AR-medium":"65.9","AR-small":"36.2","Average Precision":"42.8"},"code_links":[{"title":"frank-xwang/unsam","url":"https://github.com/frank-xwang/unsam"}]},"note":"rows are the archive's own order at snapshot; nothing here re-ranks them"}],"papers_with_a_benchmark_row":[{"paper":"/paper/segment-anything-without-supervision","title":"Segment Anything without Supervision","date":"2024-06-28","rows_on_this_dataset":2,"code_links":1,"syntology":{"read_at":"2026-09-24T18:15:14+00:00","samples_harvested":5,"samples_ran":5,"samples_unverified":0,"pointer_only_for_licence":5,"claim":"Per-sample execution on synthesized fixtures; not a correctness claim."}}],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":1,"samples_harvested":5,"samples_ran":5,"samples_unverified":0,"pointer_only_for_licence":5,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}