{"_id": {"$oid": "6a26c67c3572c06bc1455dea"}, "test_id": "T0999", "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": "google/gemma-4-26b-a4b-it", "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\":[\"1926-02-16\"],\"letter_title\":[\"Basler Rheinschiffahrt-Aktiengesellschaft\"],\"sender_persons\":[\"Christ\"],\"receiver_persons\":[\"Herrn Ryniker\",\"Dr. Max Vischer\",\"Herrn Dr. Krasting\"]}}", "model": "google/gemma-4-26b-a4b-it-20260403", "provider": "openrouter", "finish_reason": "stop", "usage": {"input_tokens": 1168, "output_tokens": 92, "total_tokens": 1260, "cached_tokens": 352, "input_cost_usd": 9.344e-05, "output_cost_usd": 3.22e-05, "estimated_cost_usd": 0.00012564}, "duration": 7.159805536270142, "timestamp": "2026-04-21T13:41:46.502861", "parsed": {"metadata": {"send_date": ["1926-02-16"], "letter_title": ["Basler Rheinschiffahrt-Aktiengesellschaft"], "sender_persons": ["Christ"], "receiver_persons": ["Herrn Ryniker", "Dr. Max Vischer", "Herrn Dr. Krasting"], "document_number": "letter01"}}, "conversation_id": "e17e6340-26ab-485c-a865-6682802dd521", "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": 3, "receiver_persons_fn": 1}, "raw_response": "{\"id\":\"gen-1776771700-5dhZGDbTak4fKCrA0Ssd\",\"choices\":[{\"finish_reason\":\"stop\",\"index\":0,\"logprobs\":null,\"message\":{\"content\":\"{\\n    \\\"metadata\\\": {\\n        \\\"send_date\\\": [\\\"1926-02-16\\\"],\\n        \\\"letter_title\\\": [\\\"Basler Rheinschiffahrt-Aktiengesellschaft\\\"],\\n        \\\"sender_persons\\\": [\\\"Christ\\\"],\\n        \\\"receiver_persons\\\": [\\\"Herrn Ryniker\\\", \\\"Dr. Max Vischer\\\", \\\"Herrn Dr. Krasting\\\"]\\n    }\\n}\",\"refusal\":null,\"role\":\"assistant\",\"annotations\":null,\"audio\":null,\"function_call\":null,\"tool_calls\":null,\"parsed\":{\"metadata\":{\"send_date\":[\"1926-02-16\"],\"letter_title\":[\"Basler Rheinschiffahrt-Aktiengesellschaft\"],\"sender_persons\":[\"Christ\"],\"receiver_persons\":[\"Herrn Ryniker\",\"Dr. Max Vischer\",\"Herrn Dr. Krasting\"]}},\"reasoning\":null},\"native_finish_reason\":\"stop\"}],\"created\":1776771700,\"model\":\"google/gemma-4-26b-a4b-it-20260403\",\"object\":\"chat.completion\",\"service_tier\":null,\"system_fingerprint\":null,\"usage\":{\"completion_tokens\":92,\"prompt_tokens\":1168,\"total_tokens\":1260,\"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\":352,\"cache_write_tokens\":0,\"video_tokens\":0},\"cost\":0.00011616,\"is_byok\":false,\"cost_details\":{\"upstream_inference_cost\":0.00011616,\"upstream_inference_prompt_cost\":0.00007936,\"upstream_inference_completions_cost\":0.0000368}},\"provider\":\"Ionstream\"}"}, "scoring": {"f1_macro": 0.5, "f1_micro": 0.46, "cost_summary": {"total_input_tokens": 28532, "total_output_tokens": 2617, "total_tokens": 31149, "input_cost_usd": 0.00228256, "output_cost_usd": 0.0009159500000000003, "total_cost_usd": 0.00319851}}, "normalized_score": 50.0}