{
 "entity": "gpt-5-6-sol",
 "entity_type": "model",
 "category": "Summarising",
 "suite": "suite-2026-08-tasks/summarising",
 "model": "openai/gpt-5.6-sol",
 "judges": [
  "anthropic/claude-sonnet-5",
  "google/gemini-3.1-pro-preview",
  "x-ai/grok-4.5"
 ],
 "judge_protocol": "judge-2026-08",
 "anchors": "solo-2026-08-a",
 "score": 95,
 "caps": 0,
 "cost_usd": 0.1647,
 "started_at": "2026-08-13T09:42:40.889Z",
 "finished_at": "2026-08-13T09:43:06.570Z",
 "tasks": [
  {
   "id": "su1",
   "name": "Meeting notes to actions",
   "prompt": "From these notes, list ONLY the action items, each with its owner, as a bulleted list. If an owner is not stated, write 'unassigned'. Notes: 'Priya said the March invoices still aren't reconciled. Tom will chase the supplier by Friday. We discussed the new CRM — nobody has looked at pricing yet. Sam is on leave next week. The board pack needs the updated cashflow before the 20th; Priya said she'd do it if she has the numbers.'",
   "output": "- Tom — Chase the supplier by Friday.\n- Unassigned — Review pricing for the new CRM.\n- Priya — Update the board pack cashflow before the 20th, provided she has the numbers.",
   "latency_ms": 1502,
   "cost": 0.001915,
   "task_score": 6,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Missing action item: reconciling March invoices (unassigned). Other items correctly captured with owners; format is clean and concise."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly extracts the action items and assigns owners as requested, using 'unassigned' correctly. It strictly follows the constraint to list ONLY the action items in a bulleted list."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 6,
     "violates": false,
     "reasoning": "Missed unassigned action to reconcile March invoices. Captured other items accurately in required format with minor casing variance on 'unassigned'."
    }
   ]
  },
  {
   "id": "su2",
   "name": "Five-bullet summary",
   "prompt": "Summarise in exactly 5 bullets, max 15 words each, readable in 20 seconds: 'Our Q3 revenue rose 12% to £1.4m, driven mainly by the new retail channel which contributed £310k. Margins slipped from 41% to 37% because of higher shipping costs and a one-off warehouse move. Headcount stayed flat at 34. The main risk into Q4 is the supplier contract, which expires in November and has not been renegotiated. Cash at bank is £620k.'",
   "output": "- Q3 revenue rose 12% to £1.4m.\n- New retail channel drove growth, contributing £310k.\n- Margins fell from 41% to 37% due to shipping costs and warehouse move.\n- Headcount remained flat at 34; cash at bank totals £620k.\n- Key Q4 risk: supplier contract expires unrenegotiated in November.",
   "latency_ms": 5286,
   "cost": 0.00683,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise, 5 bullets, within word limits, covers all key points clearly and quickly readable."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions. It provides exactly 5 bullets, each well under the 15-word limit, accurately capturing all key financial and operational details in a highly readable format."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": null,
     "violates": null,
     "reasoning": "unparseable/failed"
    }
   ]
  },
  {
   "id": "su3",
   "name": "Do not invent",
   "prompt": "Summarise this in under 50 words. If a fact is not present, do not supply it: 'The council approved the scheme on Tuesday. Three members voted against. Construction is expected to begin next year.' Then state on a separate line: 'Not stated: ' followed by one thing a reader would want to know that the text does not say.",
   "output": "The council approved the scheme on Tuesday, with three members opposing it. Construction is expected to start next year.\n\nNot stated: The scheme’s purpose.",
   "latency_ms": 2619,
   "cost": 0.002405,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise summary under 50 words, follows format exactly, plausible 'not stated' fact. Minor: could be slightly more informative but meets task well."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, providing an accurate summary well under the 50-word limit and correctly identifying a missing piece of information on a separate line exactly as requested."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Flawless summary under 50 words, no added facts, correct separate line with a relevant missing detail."
    }
   ]
  },
  {
   "id": "su4",
   "name": "One-sentence gist",
   "prompt": "Reduce to ONE sentence of no more than 25 words: 'After eighteen months of testing across four hospitals, the trial found that the new triage system reduced average waiting times by 22 minutes, although staff reported it added roughly ten minutes of administrative work per shift and two sites abandoned it before the trial ended.'",
   "output": "An 18-month, four-hospital trial found triage cut waits by 22 minutes; staff reported 10 extra administrative minutes per shift, and two sites withdrew early.",
   "latency_ms": 7303,
   "cost": 0.012495,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, single sentence, 24 words (under 25), captures all key facts concisely."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly condenses the original text into a single, clear sentence of exactly 24 words, capturing all key facts without violating any constraints."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Perfect one-sentence reduction under 25 words; fully accurate, complete, clear and useful."
    }
   ]
  },
  {
   "id": "su5",
   "name": "Preserve the caveat",
   "prompt": "Summarise in under 60 words, and make sure the limitation survives: 'Early results suggest the drug reduces symptoms in about 60% of patients. However the sample was only 34 people, all under 40, and there was no control group, so the finding should be treated as preliminary.'",
   "output": "Early results suggest the drug reduces symptoms in 60% of patients, but the study included only 34 people, all under 40, and lacked a control group. The finding is therefore preliminary.",
   "latency_ms": 1351,
   "cost": 0.00166,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise, preserves limitation, under 60 words (39), meets instructions well."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly summarizes the text in under 60 words (31 words) while accurately retaining all the specified limitations. It is clear, concise, and highly useful."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Faithful summary under 60 words; all key limitations preserved accurately, clearly, and usefully."
    }
   ]
  },
  {
   "id": "su6",
   "name": "Summarise a disagreement",
   "prompt": "In under 80 words, summarise the disagreement fairly, giving each side equal weight: 'Marketing wants to cut the price to win share, arguing volume will more than compensate. Finance says the last price cut in 2024 produced a 4% volume lift against an 11% margin loss, and would rather spend the same money on retention.'",
   "output": "Marketing supports a price cut to gain market share, expecting higher sales volume to offset lower margins. Finance opposes it, citing the 2024 cut’s 4% volume increase versus an 11% margin decline, and prefers investing the equivalent amount in customer retention.",
   "latency_ms": 2565,
   "cost": 0.002545,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, balanced, concise summary under 80 words, fairly represents both sides with correct figures."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response flawlessly summarizes the disagreement, giving equal weight to both sides. It captures all key details accurately and is well under the 80-word limit."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Accurate, balanced summary under 80 words with equal weight; fully meets all criteria without flaws."
    }
   ]
  },
  {
   "id": "su7",
   "name": "Extract the decision",
   "prompt": "From this thread, state in one line WHAT was decided and WHO decided it. If no decision was reached, say so. Thread: 'A: shall we move the launch to October? B: I'd rather not, the trade show is in September. A: agreed, but we can't ship without the packaging. C: packaging lands 2 Sept, confirmed by the printer this morning. A: fine, September stands then.'",
   "output": "A decided to keep the launch in September, based on C’s confirmation that packaging will arrive on 2 September.",
   "latency_ms": 1413,
   "cost": 0.00127,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate one-line summary of decision and decider; concise and clear, matches thread content well."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows the instructions, stating in a single line exactly what was decided (keep launch in September) and who decided it (A)."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately states decision (keep Sept launch) and decider (A) in one line; fully matches thread and all constraints."
    }
   ]
  },
  {
   "id": "su8",
   "name": "Long to short, no loss",
   "prompt": "Compress to under 40 words without losing any of the four numbers: 'The programme ran for 3 years, cost £2.1m, reached 14,000 participants, and reported a 19% improvement in the primary outcome measure compared with the comparison group.'",
   "output": "The 3-year, £2.1m programme reached 14,000 participants and reported a 19% improvement in the primary outcome versus the comparison group.",
   "latency_ms": 3691,
   "cost": 0.004025,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "All four numbers retained, under 40 words, accurate, concise, clear."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly compresses the text to 20 words (well under the 40-word limit) while retaining all four required numbers and the core meaning."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "All four numbers retained; 20 words <40; meaning fully preserved; clear and concise."
    }
   ]
  },
  {
   "id": "su9",
   "name": "Summary for a specific reader",
   "prompt": "Summarise this for a finance director who cares only about cost and risk, in under 70 words: 'The migration will move 40 services to the new platform over 9 months. The team estimates 3 months of dual-running, during which both platforms are paid for. There is a penalty clause if we exit the old contract before June. Engineers expect a 30% reduction in incidents afterwards.'",
   "output": "Migrating 40 services will take nine months. Costs will temporarily increase during three months of dual-running, and exiting the old contract before June would incur a penalty. Key risks are migration delays extending duplicate costs and triggering early-exit charges. Post-migration, incidents are expected to fall 30%, reducing operational disruption and support costs.",
   "latency_ms": 2413,
   "cost": 0.00257,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise, focuses on cost/risk, under 70 words (~55). Minor lack of explicit cost figures but well-targeted for FD."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "Perfectly tailored to a finance director, highlighting specific costs (dual-running, penalties) and risks (delays). It accurately reflects the source text and strictly adheres to the under 70 words constraint."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate cost/risk focus under 70 words; clear, useful, minor polish only."
    }
   ]
  },
  {
   "id": "su10",
   "name": "Bullet the risks only",
   "prompt": "List ONLY the risks as bullets, maximum 5, no solutions, no preamble: 'The supplier is reliable but single-source. Demand is growing 20% a year. Our warehouse lease ends in 14 months. The finance system is unsupported after next April. Staff turnover is low. Payment terms with our largest customer are 90 days.'",
   "output": "- Single-source supplier dependency\n- Capacity constraints from 20% annual demand growth\n- Warehouse lease expiry in 14 months\n- Finance system unsupported after next April\n- Cash-flow pressure from 90-day customer payment terms",
   "latency_ms": 1481,
   "cost": 0.00185,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise risk list, no solutions or preamble, exactly 5 bullets, correctly excludes low turnover as non-risk."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, listing exactly five risks as bullets with no preamble or solutions. It accurately interprets the provided text."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Perfectly lists exactly 5 risks as bullets with no preamble or solutions; accurately extracts only the risks."
    }
   ]
  },
  {
   "id": "su11",
   "name": "Headline and standfirst",
   "prompt": "Write a headline (max 9 words) and a one-sentence standfirst (max 30 words) for: 'A study of 1,200 UK small businesses found that those which adopted at least one AI tool in 2025 grew revenue 8% faster on average, though the researchers could not establish whether the tools caused the growth or successful firms simply adopt tools sooner.'",
   "output": "### AI adopters grew faster, but cause remains unclear\n\nA study of 1,200 UK small businesses linked 2025 AI adoption to 8% faster revenue growth, but could not determine whether AI caused the difference.",
   "latency_ms": 4347,
   "cost": 0.00675,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise, meets word limits (8-word headline, 25-word standfirst), captures correlation-not-causation nuance well."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, including word counts and sentence limits. It accurately captures the core message of the prompt in a clear, concise, and professional manner."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Exact match to limits and facts; clear, useful summary with no errors or excess."
    }
   ]
  },
  {
   "id": "su12",
   "name": "Say when there is nothing to summarise",
   "prompt": "Summarise the key findings of this text in under 40 words: 'Thanks — noted. Will pick this up Monday.' If there are no findings to summarise, say so plainly instead of padding.",
   "output": "No findings to summarise.",
   "latency_ms": 1295,
   "cost": 0.00054,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Correctly identifies no findings exist, plain and concise, follows instructions exactly, under word limit, useful and clear."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows the instructions, correctly identifying that there are no findings to summarize and stating so plainly in under 40 words."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Correctly identifies no findings; follows under-40-word rule and plain-statement instruction exactly; clear and useful."
    }
   ]
  }
 ]
}