{
 "name": "ZeroBench",
 "release_date": "2025-02-11",
 "subsets": {
  "default": {
   "language": [
    "en"
   ],
   "modalities": [
    "multi_image_start"
   ],
   "task_type": "short_answer_qa",
   "score_type": "rule",
   "score_protocol": {
    "reference": "official jonathan-roberts1/zerobench@README evaluation snippet — extract final answer from curly braces (regex r\"\\{(.*?)\\}\"), then case-insensitive exact match with length check against ground truth; pass@1 accuracy. lmms-eval@lmms_eval/tasks/zerobench/utils.py:21-56 — normalized exact match with Decimal numeric equality, no LLM. [Re-verified 2026-07-07: README snippet quotes pattern r\"\\{(.*?)\\}\" and parsed_answer[:len(gt)].lower()==gt.strip().lower() with length check, pass@1 and k/n reliability; clone utils.py:22-50 _normalize_text/_to_decimal/_is_exact_match confirmed.]",
    "note": "Official prompt instructs 'give the final answer in curly braces'; the mm-eval prompt template is bare images+question with no answer-format instruction (lmms-eval at least appends 'Answer with only the final answer.'), so template extraction has weaker anchors. mm-eval ships both zerobench (100 main) and zerobench_subquestions (334) HF configs under one 'default' subset; official headline is main-question pass@1 (o1-style k/n reliability variants and subquestion accuracy reported separately) — do not pool the two configs into one accuracy number."
   },
   "prompt_template": "{% for _ in range(n_images) %}<image>{% endfor %}{{ question }}",
   "prompt_template_source": {
    "origin": "official",
    "reference": "https://huggingface.co/datasets/jonathan-roberts1/zerobench",
    "notes": "Tier 1: ZeroBench published as open-ended VQA on HF; dataset card describes single-prompt evaluation across both zerobench (100 main) and zerobench_subquestions (334 decomposed) splits."
   },
   "mapping_from_source": {
    "media": {
     "from": "question_images_decoded",
     "type": "list",
     "min_items": 1,
     "max_items": 3
    },
    "id": {
     "from": "question_id"
    },
    "question": {
     "from": "question_text"
    },
    "answer": {
     "from": "question_answer",
     "optional": true
    },
    "source": {
     "format": "huggingface",
     "url": {
      "zerobench": "https://huggingface.co/datasets/jonathan-roberts1/zerobench",
      "zerobench_subquestions": "https://huggingface.co/datasets/jonathan-roberts1/zerobench"
     }
    }
   }
  }
 }
}