{
  "name": "NoCaps",
  "release_date": "2026-05-15",
  "subsets": {
    "main": {
      "language": [
        "en"
      ],
      "modalities": [
        "single_image_start"
      ],
      "task_type": "captioning",
      "prompt_template": "<image>Provide a one-sentence caption for the provided image.",
      "mapping_from_source": {
        "media": {
          "from": "image",
          "type": "list",
          "min_items": 1,
          "max_items": 1
        },
        "id": {
          "from": "image_id"
        },
        "question": {
          "from": "image_file_name"
        },
        "answer": {
          "from": "annotations_captions",
          "optional": true
        },
        "extra": {
          "image_coco_url": {
            "from": "image_coco_url"
          },
          "image_open_images_id": {
            "from": "image_open_images_id"
          }
        },
        "source": {
          "format": "json",
          "url": {
            "validation": "https://huggingface.co/datasets/lmms-lab/NoCaps"
          }
        }
      },
      "prompt_template_source": {
        "origin": "official",
        "reference": "https://github.com/open-compass/VLMEvalKit/blob/main/vlmeval/dataset/image_caption.py (ImageCaptionDataset canonical caption prompt)",
        "notes": "Tier 3: VLMEvalKit ImageCaptionDataset canonical NoCaps captioning prompt."
      }
    }
  }
}