{"_id": {"$oid": "6a26c67c3572c06bc1455db6"}, "test_id": "T0973", "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-flash-02-23", "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\":[\"1926-03-04\"],\"letter_title\":[\"Proposal for Joint Operation of Passenger Ships\"],\"sender_persons\":[\"Basler Rheinschiffahrt-Aktiengesellschaft\",\"O. Ritter\"],\"receiver_persons\":[\"Herrn P. Christ\",\"Paravicini, Christ & Co.\"]}}", "model": "qwen/qwen3.5-flash-20260224", "provider": "openrouter", "finish_reason": "stop", "usage": {"input_tokens": 13221, "output_tokens": 123, "total_tokens": 13344, "input_cost_usd": 0.0008593650000000001, "output_cost_usd": 3.198e-05, "estimated_cost_usd": 0.0008913450000000001}, "duration": 5.720504522323608, "timestamp": "2026-04-21T13:40:51.834947", "parsed": {"metadata": {"send_date": ["1926-03-04"], "letter_title": ["Proposal for Joint Operation of Passenger Ships"], "sender_persons": ["Basler Rheinschiffahrt-Aktiengesellschaft", "O. Ritter"], "receiver_persons": ["Herrn P. Christ", "Paravicini, Christ & Co."], "document_number": "letter02"}}, "conversation_id": "13c02cd1-8d89-4c34-9f96-8caf3fbaadb8", "score": {"send_date_tp": 1, "send_date_fp": 0, "send_date_fn": 0, "sender_persons_tp": 1, "sender_persons_fp": 1, "sender_persons_fn": 0, "receiver_persons_tp": 1, "receiver_persons_fp": 1, "receiver_persons_fn": 0}, "raw_response": "{\"id\":\"gen-1776771647-AmUQfo4uDnzTI24j9vii\",\"choices\":[{\"finish_reason\":\"stop\",\"index\":0,\"logprobs\":null,\"message\":{\"content\":\"{\\n    \\\"metadata\\\": {\\n        \\\"send_date\\\": [\\n            \\\"1926-03-04\\\"\\n        ],\\n        \\\"letter_title\\\": [\\n            \\\"Proposal for Joint Operation of Passenger Ships\\\"\\n        ],\\n        \\\"sender_persons\\\": [\\n            \\\"Basler Rheinschiffahrt-Aktiengesellschaft\\\",\\n            \\\"O. Ritter\\\"\\n        ],\\n        \\\"receiver_persons\\\": [\\n            \\\"Herrn P. Christ\\\",\\n            \\\"Paravicini, Christ & Co.\\\"\\n        ]\\n    }\\n}\",\"refusal\":null,\"role\":\"assistant\",\"annotations\":null,\"audio\":null,\"function_call\":null,\"tool_calls\":null,\"parsed\":{\"metadata\":{\"send_date\":[\"1926-03-04\"],\"letter_title\":[\"Proposal for Joint Operation of Passenger Ships\"],\"sender_persons\":[\"Basler Rheinschiffahrt-Aktiengesellschaft\",\"O. Ritter\"],\"receiver_persons\":[\"Herrn P. Christ\",\"Paravicini, Christ & Co.\"]}},\"reasoning\":null},\"native_finish_reason\":\"stop\"}],\"created\":1776771647,\"model\":\"qwen/qwen3.5-flash-20260224\",\"object\":\"chat.completion\",\"service_tier\":null,\"system_fingerprint\":null,\"usage\":{\"completion_tokens\":123,\"prompt_tokens\":13221,\"total_tokens\":13344,\"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\":0.000891345,\"is_byok\":false,\"cost_details\":{\"upstream_inference_cost\":0.000891345,\"upstream_inference_prompt_cost\":0.000859365,\"upstream_inference_completions_cost\":0.00003198}},\"provider\":\"Alibaba\"}"}, "scoring": {"f1_macro": 0.6, "f1_micro": 0.54, "cost_summary": {"total_input_tokens": 178438, "total_output_tokens": 2935, "total_tokens": 181373, "input_cost_usd": 0.011598470000000005, "output_cost_usd": 0.0007631000000000001, "total_cost_usd": 0.01236157}}, "normalized_score": 60.0}