{"_id": {"$oid": "6a26c67c3572c06bc1455e62"}, "test_id": "T1090", "benchmark": "business_letters", "date": "2026-06-04", "tags": {"document-type": ["letter"], "writing": ["typed", "handwritten"], "century": [20], "language": ["de"], "layout": ["prose"], "entry-type": ["person", "location"], "task": ["information-extraction"]}, "contributors": ["eric_decker", "maximilian_hindermann", "lea_kasper", "anthea_alberto", "pema_frick", "jose_luis_losada_palenzuela", "sorin_marti", "elena_spadini"], "hidden": false, "config": {"provider": "mistral", "model": "mistral-medium-3.5", "dataclass": "Document", "temperature": 0.0, "role_description": "You are a historian with keyword knowledge and an expert in the field of 20th century Swiss history. You only return valid JSON an no other text.", "prompt_file": "prompt.txt", "legacy_test": false}, "prompt": "            IDENTITY and PURPOSE:\n\n            You are presented with a series of images constituting a historical letter. Your task is to extract the\n            values of the following keys from the letter and return them in a JSON file where the values\n            corresponding to each key should be stored as a list, even if there is only a single value for a\n            key:\n\n            - letter_title: Title of the letter.\n            - sender_persons: Name(s) of the person(s) who wrote the letter.\n            - send_date: The exact or approximate date the letter was written.\n            - receiver_persons: Name(s) of the person(s) who received the letter.\n\n            Take a deep breath and think step by step about how to best accomplish this goal. Map out all the claims\n            and implications on a virtual whiteboard in your mind. Do not use OCR. Use the ISO format YYYY-MM-DD for\n            dates. If a piece of information is not included in the letter, set the value for the corresponding key\n            to \"null\". Do not return anything except the JSON file.\n\n            EXAMPLE:\n\n            {\n                \"letter_title\": [\"Petition for Environmental Protection\"],\n                \"send_date\": [\"1993-03-12\"],\n                \"sender_persons\": [\"Lisa Simpson\"],\n                \"receiver_persons\": [\"Mayor Joe Quimby\", \"Seymour Skinner\"],\n            }\n\n            OUTPUT:", "results": {"text": "{\"metadata\":{\"send_date\":[\"1928-04-03\"],\"letter_title\":[\"Betrifft Kauf \\\"Rheinfelden\\\" Ihr Schreiben vom 24. M\u00e4rz\"],\"sender_persons\":[\"Basler Rheinschiffahrt-Aktiengesellschaft\"],\"receiver_persons\":[\"Basler Personenschifffahrtsgesellschaft, Basel\"]}}", "model": "mistral-medium-3.5", "provider": "mistral", "finish_reason": "stop", "usage": {"input_tokens": 4986, "output_tokens": 84, "total_tokens": 5070, "input_cost_usd": 0.0074789999999999995, "output_cost_usd": 0.0006299999999999999, "estimated_cost_usd": 0.008109}, "duration": 126.22077679634094, "timestamp": "2026-06-04T13:48:33.996784", "parsed": {"metadata": {"letter_title": ["Betrifft Kauf \"Rheinfelden\" Ihr Schreiben vom 24. M\u00e4rz"], "send_date": ["1928-04-03"], "sender_persons": ["Basler Rheinschiffahrt-Aktiengesellschaft"], "receiver_persons": ["Basler Personenschifffahrtsgesellschaft, Basel"], "document_number": "letter23"}}, "conversation_id": "8014578f-8b6e-4338-9643-8ce4bf722db6", "score": {"send_date_tp": 1, "send_date_fp": 0, "send_date_fn": 0, "sender_persons_tp": 0, "sender_persons_fp": 1, "sender_persons_fn": 2, "receiver_persons_tp": 0, "receiver_persons_fp": 1, "receiver_persons_fn": 0}, "raw_response": "{\"id\":\"418171f0decf4fb6a6ef93c35101a458\",\"object\":\"chat.completion\",\"model\":\"mistral-medium-3.5\",\"usage\":{\"prompt_tokens\":4986,\"completion_tokens\":84,\"total_tokens\":5070,\"prompt_tokens_details\":{\"cached_tokens\":312}},\"created\":1780573707,\"choices\":[{\"index\":0,\"message\":{\"role\":\"assistant\",\"content\":\"{\\\"metadata\\\": {\\\"letter_title\\\": [\\\"Betrifft Kauf \\\\\\\"Rheinfelden\\\\\\\" Ihr Schreiben vom 24. M\u00e4rz\\\"], \\\"send_date\\\": [\\\"1928-04-03\\\"], \\\"sender_persons\\\": [\\\"Basler Rheinschiffahrt-Aktiengesellschaft\\\"], \\\"receiver_persons\\\": [\\\"Basler Personenschifffahrtsgesellschaft, Basel\\\"]}}\",\"tool_calls\":null,\"prefix\":false},\"finish_reason\":\"stop\"}]}"}, "scoring": {"f1_macro": 0.45, "f1_micro": 0.46, "cost_summary": {"total_input_tokens": 199238, "total_output_tokens": 3422, "total_tokens": 202660, "input_cost_usd": 0.29885699999999993, "output_cost_usd": 0.025665, "total_cost_usd": 0.32452199999999987}}, "normalized_score": 45.0}