{"_id": {"$oid": "6a26c67c3572c06bc1455dec"}, "test_id": "T0934", "benchmark": "business_letters", "date": "2026-04-21", "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": "openrouter", "model": "qwen/qwen3.5-35b-a3b", "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", "prompt_file": "prompt.txt", "rules": "{\"skip_signatures\": false, \"skip_non_signatures\": true}", "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\":[\"1926-03-24\"],\"letter_title\":null,\"sender_persons\":[\"Basler Rheinschiffahrt-Aktiengesellschaft\"],\"receiver_persons\":[\"Herrn P. Christ - Wackernagel\"]}}", "model": "qwen/qwen3.5-35b-a3b-20260224", "provider": "openrouter", "finish_reason": "stop", "usage": {"input_tokens": 3131, "output_tokens": 98, "total_tokens": 3229, "input_cost_usd": 0.0005087875000000001, "output_cost_usd": 0.0001274, "estimated_cost_usd": 0.0006361875}, "duration": 4.32714581489563, "timestamp": "2026-04-21T14:09:57.966438", "parsed": {"metadata": {"send_date": ["1926-03-24"], "letter_title": null, "sender_persons": ["Basler Rheinschiffahrt-Aktiengesellschaft"], "receiver_persons": ["Herrn P. Christ - Wackernagel"], "document_number": "letter03"}}, "conversation_id": "b65e2c81-1717-4156-98ca-505960bafa63", "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": 1, "receiver_persons_fp": 0, "receiver_persons_fn": 0}, "raw_response": "{\"id\":\"gen-1776773394-MwSHhe4unCXBzuepxM4C\",\"choices\":[{\"finish_reason\":\"stop\",\"index\":0,\"logprobs\":null,\"message\":{\"content\":\"{\\n  \\\"metadata\\\": {\\n    \\\"letter_title\\\": null,\\n    \\\"receiver_persons\\\": [\\n      \\\"Herrn P. Christ - Wackernagel\\\"\\n    ],\\n    \\\"send_date\\\": [\\n      \\\"1926-03-24\\\"\\n    ],\\n    \\\"sender_persons\\\": [\\n      \\\"Basler Rheinschiffahrt-Aktiengesellschaft\\\"\\n    ]\\n  }\\n}\",\"refusal\":null,\"role\":\"assistant\",\"annotations\":null,\"audio\":null,\"function_call\":null,\"tool_calls\":null,\"parsed\":{\"metadata\":{\"send_date\":[\"1926-03-24\"],\"letter_title\":null,\"sender_persons\":[\"Basler Rheinschiffahrt-Aktiengesellschaft\"],\"receiver_persons\":[\"Herrn P. Christ - Wackernagel\"]}},\"reasoning\":null},\"native_finish_reason\":\"stop\"}],\"created\":1776773394,\"model\":\"qwen/qwen3.5-35b-a3b-20260224\",\"object\":\"chat.completion\",\"service_tier\":null,\"system_fingerprint\":null,\"usage\":{\"completion_tokens\":98,\"prompt_tokens\":3131,\"total_tokens\":3229,\"completion_tokens_details\":{\"accepted_prediction_tokens\":null,\"audio_tokens\":0,\"reasoning_tokens\":0,\"rejected_prediction_tokens\":null,\"image_tokens\":0},\"prompt_tokens_details\":{\"audio_tokens\":0,\"cached_tokens\":0,\"cache_write_tokens\":0,\"video_tokens\":0},\"cost\":0.000880875,\"is_byok\":false,\"cost_details\":{\"upstream_inference_cost\":0.000880875,\"upstream_inference_prompt_cost\":0.000704475,\"upstream_inference_completions_cost\":0.0001764}},\"provider\":\"AtlasCloud\"}"}, "scoring": {"f1_macro": 0.59, "f1_micro": 0.53, "cost_summary": {"total_input_tokens": 178858, "total_output_tokens": 44778, "total_tokens": 223636, "input_cost_usd": 0.029064424999999998, "output_cost_usd": 0.058211399999999996, "total_cost_usd": 0.087275825}}, "normalized_score": 59.0}