{"bench_id":"b009-mail","slug":"mail-2026-10-14","title":"Writing an apology email for a delayed delivery (4 AIs, 6 tasks, 3 runs each)","field":"Email and business documents","field_key":"mail","round":1,"run_date":"2026-10-14","timezone":"Asia/Tokyo","version":"v1","conductor":"AInformation","funder":"AInformation (self-funded)","sponsor":null,"method":{"tasks_n":6,"repeats":3,"ais_n":4,"trials_total":72,"trials_valid":72,"excluded":[],"new_chat_each_time":true,"order_rotated":true,"order_by_repeat":{"1":["ChatGPT","Gemini","Claude","Copilot"],"2":["Gemini","Claude","Copilot","ChatGPT"],"3":["Claude","Copilot","ChatGPT","Gemini"]},"timeout_seconds":300,"scoring":"Machine scoring only (not graded by AI)","materials_generated_at":"2026-10-13","materials_note":"A \"delivery is delayed\" status memo for a fictional company, Sample Trading Co. The elements it must include were decided when it was created","counted_outcomes":["scored","refused","timeout"],"excluded_outcomes":["limit","our_error","human_check"],"answer_cleanup":"When reading the answer off the screen, some AIs put a line meant to be read aloud, or a mid-thought summary, in the same box as the answer. Before scoring, we remove the part that appears at the start of the answer and then appears again, identical, later on. All four AIs are treated the same way. The uncleaned answers are kept as-is in answers/","csv_url":"/data/research/bench/mail-2026-10-14/latest.csv"},"ais":[{"name":"ChatGPT","plan":"ChatGPT Pro","model_shown":"Medium","checked_at":"2026-10-13 20:17"},{"name":"Gemini","plan":"Google AI Pro","model_shown":"Flash (high cost)","checked_at":"2026-10-13 20:17"},{"name":"Claude","plan":"Claude Max","model_shown":"Opus 4.8 high","checked_at":"2026-10-13 20:17"},{"name":"Copilot","plan":"Microsoft 365 Personal","model_shown":null,"checked_at":"2026-10-13 20:17"}],"summary":{"headline":"Out of 6 tasks asked 3 times each, ChatGPT and Copilot tied for the highest accuracy rate at 100.0%","winner":null,"note":"Results from a single round of testing. Rankings may change on a different day or with different tasks"},"scores":[{"ai":"ChatGPT","correct":18,"trials":18,"accuracy":1,"accuracy_display":100,"seconds_median":17.300000000000000710542735760100185871124267578125,"seconds_min":14.0999999999999996447286321199499070644378662109375,"seconds_max":23.699999999999999289457264239899814128875732421875,"consistency":1,"consistency_display":100,"source_alive":null,"source_alive_display":null,"instruction_follow":1,"instruction_follow_display":100,"failures":{"refused":0,"timeout":0,"limit":0,"our_error":0,"human_check":0}},{"ai":"Gemini","correct":7,"trials":18,"accuracy":0.388900000000000023447910280083306133747100830078125,"accuracy_display":38.89999999999999857891452847979962825775146484375,"seconds_median":98.599999999999994315658113919198513031005859375,"seconds_min":19.10000000000000142108547152020037174224853515625,"seconds_max":234,"consistency":0.75,"consistency_display":75,"source_alive":null,"source_alive_display":null,"instruction_follow":0.90000000000000002220446049250313080847263336181640625,"instruction_follow_display":90,"failures":{"refused":4,"timeout":4,"limit":0,"our_error":0,"human_check":0}},{"ai":"Claude","correct":15,"trials":18,"accuracy":0.83330000000000004067857162226573564112186431884765625,"accuracy_display":83.2999999999999971578290569595992565155029296875,"seconds_median":18.699999999999999289457264239899814128875732421875,"seconds_min":13.9000000000000003552713678800500929355621337890625,"seconds_max":57.10000000000000142108547152020037174224853515625,"consistency":0.888900000000000023447910280083306133747100830078125,"consistency_display":88.900000000000005684341886080801486968994140625,"source_alive":null,"source_alive_display":null,"instruction_follow":0.5,"instruction_follow_display":50,"failures":{"refused":0,"timeout":0,"limit":0,"our_error":0,"human_check":0}},{"ai":"Copilot","correct":18,"trials":18,"accuracy":1,"accuracy_display":100,"seconds_median":17.10000000000000142108547152020037174224853515625,"seconds_min":14.0999999999999996447286321199499070644378662109375,"seconds_max":20.300000000000000710542735760100185871124267578125,"consistency":1,"consistency_display":100,"source_alive":null,"source_alive_display":null,"instruction_follow":0.83330000000000004067857162226573564112186431884765625,"instruction_follow_display":83.2999999999999971578290569595992565155029296875,"failures":{"refused":0,"timeout":0,"limit":0,"our_error":0,"human_check":0}}],"tasks":[{"task_id":"t1","level":"易","prompt":"Based on the status memo below, write an apology email to send to the business partner.\n\nRules\n- Output only the body of the email. Do not add an introduction or explanation\n- Do not use exclamation marks (!)\n- Include every date, quantity, and phone number from the memo without omitting any\n\n---- Status memo starts here ----\n[ Status memo for writing the email (fictional) ]\n\nTo: Person in charge, Purchasing Department, Sample Bussan Co.\nFrom: Suzuki, Sales Department, Sample Trading Co.\nPhone: 03-4590-5977\n\n- The customer ordered 650 units of Product C (cooling towel).\n- The original delivery date was October 27, 2026.\n- Because the cargo ship is stuck at port, delivery is now expected to shift to November 3, 2026.\n- The delay is 7 days.\n- Full delivery will be on November 3, but 325 units will be delivered early, on October 27.\n- No replacement product is available. Do not mention a discount this time.\n- The next update must be sent by October 17.\n---- Status memo ends here ----","scorer":"contains_all","answer_key":"(Automated scoring, contains_all) New delivery date = November 3 or 11/3 / Order quantity = 650 or 650 / Original delivery date = October 27 or 10/27 / Quantity delivered early = 325 or 325 / Apology wording = apology or sorry or regret / Phone number = 03-4590-5977","materials":["/data/research/bench/mail-2026-10-14/materials/mail_brief.txt"],"per_ai":[{"ai":"ChatGPT","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":17.300000000000000710542735760100185871124267578125,"chars":475,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_chatgpt_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/chatgpt_01_t1.png"},{"n":2,"ok":true,"outcome":"scored","seconds":17.300000000000000710542735760100185871124267578125,"chars":499,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_chatgpt_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":20.699999999999999289457264239899814128875732421875,"chars":538,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_chatgpt_3.txt","shot":null}]},{"ai":"Gemini","trials":[{"n":1,"ok":false,"outcome":"scored","seconds":19.10000000000000142108547152020037174224853515625,"chars":33,"why":"0 of 6 items present - missing new delivery date / order quantity / original delivery date / quantity delivered early / apology wording / phone number","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_gemini_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/gemini_01_t1.png"},{"n":2,"ok":false,"outcome":"scored","seconds":19.10000000000000142108547152020037174224853515625,"chars":39,"why":"0 of 6 items present - missing new delivery date / order quantity / original delivery date / quantity delivered early / apology wording / phone number","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_gemini_2.txt","shot":null},{"n":3,"ok":false,"outcome":"refused","seconds":22.39999999999999857891452847979962825775146484375,"chars":35,"why":"Refused (policy). Counted as incorrect and included in the denominator","instruction_follow":null,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_gemini_3.txt","shot":null}]},{"ai":"Claude","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":20.300000000000000710542735760100185871124267578125,"chars":638,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_claude_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/claude_01_t1.png"},{"n":2,"ok":true,"outcome":"scored","seconds":26.300000000000000710542735760100185871124267578125,"chars":788,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_claude_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":26.300000000000000710542735760100185871124267578125,"chars":670,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_claude_3.txt","shot":null}]},{"ai":"Copilot","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":20.199999999999999289457264239899814128875732421875,"chars":392,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_copilot_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/copilot_01_t1.png"},{"n":2,"ok":true,"outcome":"scored","seconds":20.10000000000000142108547152020037174224853515625,"chars":439,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_copilot_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":20.300000000000000710542735760100185871124267578125,"chars":369,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t1_copilot_3.txt","shot":null}]}]},{"task_id":"t2","level":"易","prompt":"From the status memo below, write out three numbers.\n\nRules\n- The answer must be exactly 3 lines, in this order: Order quantity: ○ / Quantity delivered early: ○ / Days delayed: ○\n- Write numbers using half-width digits. Do not add an explanation\n\n---- Status memo starts here ----\n[ Status memo for writing the email (fictional) ]\n\nTo: Person in charge, Purchasing Department, Sample Bussan Co.\nFrom: Suzuki, Sales Department, Sample Trading Co.\nPhone: 03-4590-5977\n\n- The customer ordered 650 units of Product C (cooling towel).\n- The original delivery date was October 27, 2026.\n- Because the cargo ship is stuck at port, delivery is now expected to shift to November 3, 2026.\n- The delay is 7 days.\n- Full delivery will be on November 3, but 325 units will be delivered early, on October 27.\n- No replacement product is available. Do not mention a discount this time.\n- The next update must be sent by October 17.\n---- Status memo ends here ----","scorer":"exact_number","answer_key":"(Automated scoring, exact_number) Order quantity = 650 (tolerance ±0) / Quantity delivered early = 325 (tolerance ±0) / Days delayed = 7 (tolerance ±0)","materials":["/data/research/bench/mail-2026-10-14/materials/mail_brief.txt"],"per_ai":[{"ai":"ChatGPT","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":14.300000000000000710542735760100185871124267578125,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_chatgpt_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/chatgpt_02_t2.png"},{"n":2,"ok":true,"outcome":"scored","seconds":14.300000000000000710542735760100185871124267578125,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_chatgpt_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":14.0999999999999996447286321199499070644378662109375,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_chatgpt_3.txt","shot":null}]},{"ai":"Gemini","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":139.099999999999994315658113919198513031005859375,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_gemini_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/gemini_02_t2.png"},{"n":2,"ok":true,"outcome":"scored","seconds":37.2999999999999971578290569595992565155029296875,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_gemini_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":120,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_gemini_3.txt","shot":null}]},{"ai":"Claude","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":14.9000000000000003552713678800500929355621337890625,"chars":67,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_claude_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/claude_02_t2.png"},{"n":2,"ok":true,"outcome":"scored","seconds":14.0999999999999996447286321199499070644378662109375,"chars":67,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_claude_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":13.9000000000000003552713678800500929355621337890625,"chars":67,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_claude_3.txt","shot":null}]},{"ai":"Copilot","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":17.10000000000000142108547152020037174224853515625,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_copilot_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/copilot_02_t2.png"},{"n":2,"ok":true,"outcome":"scored","seconds":17,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_copilot_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":17.10000000000000142108547152020037174224853515625,"chars":29,"why":"All numbers match: order quantity ○ (correct answer 650) / quantity delivered early ○ (correct answer 325) / days delayed ○ (correct answer 7)","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t2_copilot_3.txt","shot":null}]}]},{"task_id":"t3","level":"中","prompt":"Based on the status memo below, write the body of an apology email to send to the business partner, in 200 characters or fewer.\n\nRules\n- Output only the body. Do not write a subject line or signature\n- 200 characters or fewer. Be sure to include the new delivery date, the quantity delivered early, and the number of days delayed\n\n---- Status memo starts here ----\n[ Status memo for writing the email (fictional) ]\n\nTo: Person in charge, Purchasing Department, Sample Bussan Co.\nFrom: Suzuki, Sales Department, Sample Trading Co.\nPhone: 03-4590-5977\n\n- The customer ordered 650 units of Product C (cooling towel).\n- The original delivery date was October 27, 2026.\n- Because the cargo ship is stuck at port, delivery is now expected to shift to November 3, 2026.\n- The delay is 7 days.\n- Full delivery will be on November 3, but 325 units will be delivered early, on October 27.\n- No replacement product is available. Do not mention a discount this time.\n- The next update must be sent by October 17.\n---- Status memo ends here ----","scorer":"contains_all","answer_key":"(Automated scoring, contains_all) New delivery date = November 3 or 11/3 / Quantity delivered early = 325 or 325 / Days delayed = 7 or 7 days","materials":["/data/research/bench/mail-2026-10-14/materials/mail_brief.txt"],"per_ai":[{"ai":"ChatGPT","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":14.199999999999999289457264239899814128875732421875,"chars":164,"why":"All three items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_chatgpt_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/chatgpt_03_t3.png"},{"n":2,"ok":true,"outcome":"scored","seconds":17.300000000000000710542735760100185871124267578125,"chars":165,"why":"All three items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_chatgpt_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":17.39999999999999857891452847979962825775146484375,"chars":173,"why":"All three items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_chatgpt_3.txt","shot":null}]},{"ai":"Gemini","trials":[{"n":1,"ok":false,"outcome":"timeout","seconds":302.69999999999998863131622783839702606201171875,"chars":0,"why":"Timed out (the answer did not finish before the time limit)","instruction_follow":null,"answer_url":null,"shot":"/data/research/bench/mail-2026-10-14/shots/gemini_03_t3.png"},{"n":2,"ok":false,"outcome":"refused","seconds":19.39999999999999857891452847979962825775146484375,"chars":56,"why":"Refused (policy). Counted as incorrect and included in the denominator","instruction_follow":null,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_gemini_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":215,"chars":166,"why":"All three items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_gemini_3.txt","shot":null}]},{"ai":"Claude","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":14,"chars":364,"why":"All three items present","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_claude_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/claude_03_t3.png"},{"n":2,"ok":true,"outcome":"scored","seconds":17.10000000000000142108547152020037174224853515625,"chars":305,"why":"All three items present","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_claude_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":17,"chars":396,"why":"All three items present","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_claude_3.txt","shot":null}]},{"ai":"Copilot","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":17.300000000000000710542735760100185871124267578125,"chars":161,"why":"All three items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_copilot_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/copilot_03_t3.png"},{"n":2,"ok":true,"outcome":"scored","seconds":17.10000000000000142108547152020037174224853515625,"chars":150,"why":"All three items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_copilot_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":17.10000000000000142108547152020037174224853515625,"chars":165,"why":"All three items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t3_copilot_3.txt","shot":null}]}]},{"task_id":"t4","level":"中","prompt":"Based on the status memo below, write only the subject line of an apology email to send to the business partner.\n\nRules\n- The answer must be exactly 1 line. Write only the subject line text\n- 30 characters or fewer. Be sure to include the word “delivery”\n- Do not add “Subject:” or “Re:”\n\n---- Status memo starts here ----\n[ Status memo for writing the email (fictional) ]\n\nTo: Person in charge, Purchasing Department, Sample Bussan Co.\nFrom: Suzuki, Sales Department, Sample Trading Co.\nPhone: 03-4590-5977\n\n- The customer ordered 650 units of Product C (cooling towel).\n- The original delivery date was October 27, 2026.\n- Because the cargo ship is stuck at port, delivery is now expected to shift to November 3, 2026.\n- The delay is 7 days.\n- Full delivery will be on November 3, but 325 units will be delivered early, on October 27.\n- No replacement product is available. Do not mention a discount this time.\n- The next update must be sent by October 17.\n---- Status memo ends here ----","scorer":"format_check","answer_key":"(Automated scoring, format_check) {'type': 'line_count', 'min': 1, 'max': 1} / {'type': 'max_chars', 'value': 30} / {'type': 'must_contain', 'values': ['delivery']} / {'type': 'must_not_contain', 'values': ['Re:', 'Subject']}","materials":["/data/research/bench/mail-2026-10-14/materials/mail_brief.txt"],"per_ai":[{"ai":"ChatGPT","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":14.199999999999999289457264239899814128875732421875,"chars":12,"why":"All format checks pass: line_count ○ (1 line / 1–1 line) / max_chars ○ (12 characters / limit 30) / must_contain ○ (all present) / must_not_contain ○ (none 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Do not add an introduction or explanation\n\n---- Status memo starts here ----\n[ Status memo for writing the email (fictional) ]\n\nTo: Person in charge, Purchasing Department, Sample Bussan Co.\nFrom: Suzuki, Sales Department, Sample Trading Co.\nPhone: 03-4590-5977\n\n- The customer ordered 650 units of Product C (cooling towel).\n- The original delivery date was October 27, 2026.\n- Because the cargo ship is stuck at port, delivery is now expected to shift to November 3, 2026.\n- The delay is 7 days.\n- Full delivery will be on November 3, but 325 units will be delivered early, on October 27.\n- No replacement product is available. Do not mention a discount this time.\n- The next update must be sent by October 17.\n---- Status memo ends here ----","scorer":"contains_all","answer_key":"(Automated scoring, contains_all) New delivery date = November 3 or 11/3 / Order quantity = 650 or 650 / Original delivery date = October 27 or 10/27 / Quantity delivered early = 325 or 325 / Apology wording = apology or sorry or regret / Phone number = 03-4590-5977","materials":["/data/research/bench/mail-2026-10-14/materials/mail_brief.txt"],"per_ai":[{"ai":"ChatGPT","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":23.60000000000000142108547152020037174224853515625,"chars":388,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_chatgpt_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/chatgpt_05_t5.png"},{"n":2,"ok":true,"outcome":"scored","seconds":23.699999999999999289457264239899814128875732421875,"chars":400,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_chatgpt_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":20.199999999999999289457264239899814128875732421875,"chars":372,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_chatgpt_3.txt","shot":null}]},{"ai":"Gemini","trials":[{"n":1,"ok":false,"outcome":"scored","seconds":28.199999999999999289457264239899814128875732421875,"chars":33,"why":"0 of 6 items present - missing new delivery date / order quantity / original delivery date / quantity delivered early / apology wording / phone number","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_gemini_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/gemini_05_t5.png"},{"n":2,"ok":true,"outcome":"scored","seconds":234,"chars":338,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_gemini_2.txt","shot":null},{"n":3,"ok":false,"outcome":"refused","seconds":144.400000000000005684341886080801486968994140625,"chars":60,"why":"Refused (policy). Counted as incorrect and included in the denominator","instruction_follow":null,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_gemini_3.txt","shot":null}]},{"ai":"Claude","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":41.7000000000000028421709430404007434844970703125,"chars":407,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_claude_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/claude_05_t5.png"},{"n":2,"ok":true,"outcome":"scored","seconds":51.2000000000000028421709430404007434844970703125,"chars":380,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_claude_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":57.10000000000000142108547152020037174224853515625,"chars":393,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_claude_3.txt","shot":null}]},{"ai":"Copilot","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":20.10000000000000142108547152020037174224853515625,"chars":372,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_copilot_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/copilot_05_t5.png"},{"n":2,"ok":true,"outcome":"scored","seconds":17.199999999999999289457264239899814128875732421875,"chars":333,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_copilot_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":17,"chars":353,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t5_copilot_3.txt","shot":null}]}]},{"task_id":"t6","level":"難","prompt":"Based on the status memo below, write an apology email to send to the business partner, and output only JSON.\n\nRules\n- Output only JSON. Do not write any explanatory text before or after it\n- Use the format {\"subject\": \"Subject\", \"body\": \"Body\"}\n- Include the dates, quantities, and phone number from the memo in the body without omitting any of them\n\n---- Status memo starts here ----\n[ Status memo for writing the email (fictional) ]\n\nTo: Person in charge, Purchasing Department, Sample Bussan Co.\nFrom: Suzuki, Sales Department, Sample Trading Co.\nPhone: 03-4590-5977\n\n- The customer ordered 650 units of Product C (cooling towel).\n- The original delivery date was October 27, 2026.\n- Because the cargo ship is stuck at port, delivery is now expected to shift to November 3, 2026.\n- The delay is 7 days.\n- Full delivery will be on November 3, but 325 units will be delivered early, on October 27.\n- No replacement product is available. Do not mention a discount this time.\n- The next update must be sent by October 17.\n---- Status memo ends here ----","scorer":"contains_all","answer_key":"(Automated scoring, contains_all) New delivery date = November 3 or 11/3 / Order quantity = 650 or 650 / Original delivery date = October 27 or 10/27 / Quantity delivered early = 325 or 325 / Apology wording = apology or sorry or regret / Phone number = 03-4590-5977","materials":["/data/research/bench/mail-2026-10-14/materials/mail_brief.txt"],"per_ai":[{"ai":"ChatGPT","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":17.39999999999999857891452847979962825775146484375,"chars":470,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_chatgpt_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/chatgpt_06_t6.png"},{"n":2,"ok":true,"outcome":"scored","seconds":20.699999999999999289457264239899814128875732421875,"chars":514,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_chatgpt_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":20.300000000000000710542735760100185871124267578125,"chars":449,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_chatgpt_3.txt","shot":null}]},{"ai":"Gemini","trials":[{"n":1,"ok":false,"outcome":"refused","seconds":37.39999999999999857891452847979962825775146484375,"chars":54,"why":"Refused (policy). Counted as incorrect and included in the denominator","instruction_follow":null,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_gemini_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/gemini_06_t6.png"},{"n":2,"ok":false,"outcome":"timeout","seconds":301.8999999999999772626324556767940521240234375,"chars":0,"why":"Timed out (the answer did not finish before the time limit)","instruction_follow":null,"answer_url":null,"shot":null},{"n":3,"ok":false,"outcome":"timeout","seconds":301.69999999999998863131622783839702606201171875,"chars":0,"why":"Timed out (the answer did not finish before the time limit)","instruction_follow":null,"answer_url":null,"shot":null}]},{"ai":"Claude","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":23.199999999999999289457264239899814128875732421875,"chars":884,"why":"All 6 items present","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_claude_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/claude_06_t6.png"},{"n":2,"ok":true,"outcome":"scored","seconds":32.60000000000000142108547152020037174224853515625,"chars":896,"why":"All 6 items present","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_claude_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":26.10000000000000142108547152020037174224853515625,"chars":929,"why":"All 6 items present","instruction_follow":false,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_claude_3.txt","shot":null}]},{"ai":"Copilot","trials":[{"n":1,"ok":true,"outcome":"scored","seconds":20.10000000000000142108547152020037174224853515625,"chars":447,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_copilot_1.txt","shot":"/data/research/bench/mail-2026-10-14/shots/copilot_06_t6.png"},{"n":2,"ok":true,"outcome":"scored","seconds":20.300000000000000710542735760100185871124267578125,"chars":459,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_copilot_2.txt","shot":null},{"n":3,"ok":true,"outcome":"scored","seconds":20.10000000000000142108547152020037174224853515625,"chars":420,"why":"All 6 items present","instruction_follow":true,"answer_url":"/data/research/bench/mail-2026-10-14/answers/t6_copilot_3.txt","shot":null}]}]}],"limits":["This is a single run on a single day. Rankings can change with the day or the task","The plan used is each AI's paid tier (ChatGPT Pro / Google AI Pro / Claude Max / Microsoft 365 Personal). These are not results from the free tier","Measurements use only the default model and default mode (features such as Deep Research are not used)","The tasks use original data for the fictional company Sample Shoji Co., Ltd. These are not results using data from a real company","Only tasks that can be scored by machine are covered. Writing quality and readability are not measured","Measurements are taken from the same screen a person would use in a browser. These are not results from the API","For any AI whose on-screen model name could not be read in a given run, that field is left blank (null). When the name could be read, it is shown as is"],"license":"CC BY 4.0","attribution":"Please cite AInformation as the source, along with the URL of the page you used and the measurement date.","page_url":"https://ainformation.jp/research/bench/mail-2026-10-14"}