{
  "name": "MathVista",
  "release_date": "2026-05-15",
  "subsets": {
    "main": {
      "language": [
        "en"
      ],
      "modalities": [
        "single_image_start"
      ],
      "task_type": "vqa",
      "prompt_template": "<image>{{ question }}",
      "mapping_from_source": {
        "media": {
          "from": "decoded_image",
          "type": "list",
          "min_items": 1,
          "max_items": 1
        },
        "id": {
          "from": "pid"
        },
        "question": {
          "from": "query",
          "note": "use upstream `query` field (pre-built format-prompt with hint + question)"
        },
        "answer": {
          "from": "answer",
          "optional": true
        },
        "extra": {
          "question_type": {
            "from": "question_type"
          },
          "answer_type": {
            "from": "answer_type"
          }
        },
        "source": {
          "format": "json",
          "url": {
            "testmini": "https://huggingface.co/datasets/AI4Math/MathVista"
          }
        }
      },
      "prompt_template_source": {
        "origin": "official",
        "reference": "https://github.com/EvolvingLMMs-Lab/lmms-eval/blob/main/lmms_eval/tasks/mathvista/utils.py (mathvista_doc_to_text — uses 'query' column which is pre-rendered)",
        "notes": "Tier 4: lmms-eval MathVista canonical: pre-rendered 'query' column from source; template is bare to forward unchanged."
      }
    }
  }
}