{"_id": {"$oid": "6ac4c7b6164e0f17c0b23a0c"}, "test_id": "T1871", "benchmark": "business_letters", "date": "2026-09-28", "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": "anthropic", "model": "claude-sonnet-5-5", "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", "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": "{\n    \"letter_title\": [\"null\"],\n    \"send_date\": [\"1926-02-16\"],\n    \"sender_persons\": [\"Basler Rheinschiffahrt-Aktiengesellschaft\", \"F. Keller\"],\n    \"receiver_persons\": [\"Herr Christ\"]\n}", "model": "claude-sonnet-5-5", "provider": "anthropic", "finish_reason": "end_turn", "usage": {"input_tokens": 12029, "output_tokens": 99, "total_tokens": 12128, "reasoning_tokens": 0, "input_cost_usd": 0.024058, "output_cost_usd": 0.00099, "reasoning_cost_usd": 0.0, "estimated_cost_usd": 0.025048}, "duration": 4.00027060508728, "timestamp": "2026-09-28T21:46:08.329970", "parsed": {"letter_title": ["null"], "send_date": ["1926-02-16"], "sender_persons": ["Basler Rheinschiffahrt-Aktiengesellschaft", "F. Keller"], "receiver_persons": ["Herr Christ"]}, "conversation_id": "558fd1c6-abd6-4ab5-b470-9a208641b15c", "score": {"send_date_tp": 1, "send_date_fp": 0, "send_date_fn": 0, "sender_persons_tp": 0, "sender_persons_fp": 2, "sender_persons_fn": 2, "receiver_persons_tp": 1, "receiver_persons_fp": 0, "receiver_persons_fn": 0, "field_scores": {"send_date": {"response": ["1926-02-16"], "ground_truth": ["1926-02-16"], "score": null, "counts": {"send_date_tp": 1, "send_date_fp": 0, "send_date_fn": 0}}, "sender_persons": {"response": ["Basler Rheinschiffahrt-Aktiengesellschaft", "F. Keller"], "ground_truth": ["Groschupf-Jaeger, Louis", "Ritter-Dreier, Fritz"], "score": null, "counts": {"sender_persons_tp": 0, "sender_persons_fp": 2, "sender_persons_fn": 2}}, "receiver_persons": {"response": ["Christ-Wackernagel, Paul"], "ground_truth": ["Christ-Wackernagel, Paul"], "score": null, "counts": {"receiver_persons_tp": 1, "receiver_persons_fp": 0, "receiver_persons_fn": 0}}}}, "raw_response": "{\"id\":\"msg_011CfWQu4fP2GehihKjQ3vAU\",\"container\":null,\"content\":[{\"citations\":null,\"text\":\"{\\n    \\\"letter_title\\\": [\\\"null\\\"],\\n    \\\"send_date\\\": [\\\"1926-02-16\\\"],\\n    \\\"sender_persons\\\": [\\\"Basler Rheinschiffahrt-Aktiengesellschaft\\\", \\\"F. Keller\\\"],\\n    \\\"receiver_persons\\\": [\\\"Herr Christ\\\"]\\n}\",\"type\":\"text\"}],\"model\":\"claude-sonnet-5-5\",\"role\":\"assistant\",\"stop_reason\":\"end_turn\",\"stop_sequence\":null,\"type\":\"message\",\"usage\":{\"cache_creation\":{\"ephemeral_1h_input_tokens\":0,\"ephemeral_5m_input_tokens\":0},\"cache_creation_input_tokens\":0,\"cache_read_input_tokens\":0,\"inference_geo\":\"global\",\"input_tokens\":12029,\"output_tokens\":99,\"server_tool_use\":null,\"service_tier\":\"standard\",\"output_tokens_details\":{\"thinking_tokens\":0}},\"stop_details\":null,\"diagnostics\":null}"}, "scoring": {"f1_macro": 0.58, "f1_micro": 0.59, "cost_summary": {"total_input_tokens": 404530, "total_output_tokens": 6783, "total_tokens": 411313, "input_cost_usd": 0.809060000000001, "output_cost_usd": 0.06782999999999999, "total_cost_usd": 0.8768900000000001}}, "pricing": {"bucket_date": "2026-09-28", "age_days": 0, "input_price_per_million": 2.0, "output_price_per_million": 10.0}, "timing": {"total_response_s": 167.39, "mean_response_s": 2.94, "slowest_response_s": 5.8, "inputs_timed": 57, "inputs_stored": 57, "span_s": 15.69}, "normalized_score": 57.99999999999999}