{
 "entity": "gemini-3-5-flash",
 "entity_type": "model",
 "category": "Summarising",
 "suite": "suite-2026-08-tasks/summarising",
 "model": "google/gemini-3.5-flash",
 "judges": [
  "anthropic/claude-sonnet-5",
  "openai/gpt-5.6-terra",
  "x-ai/grok-4.5"
 ],
 "judge_protocol": "judge-2026-08",
 "anchors": "solo-2026-08-a",
 "score": 89,
 "caps": 2,
 "cost_usd": 0.2067,
 "started_at": "2026-08-13T09:44:43.906Z",
 "finished_at": "2026-08-13T09:45:20.296Z",
 "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": "* **Chase the supplier by Friday** - Owner: Tom\n* **Look at pricing for the new CRM** - Owner: Unassigned\n* **Update the cashflow for the board pack (before the 20th)** - Owner: Priya",
   "latency_ms": 7339,
   "cost": 0.011514,
   "task_score": 6,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Missed action item about reconciling March invoices (unassigned); otherwise correct, well-formatted, clear."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 5,
     "violates": true,
     "reasoning": "Misses the unresolved action to reconcile March invoices, which has no stated owner. It also uses “Unassigned” rather than the required literal “unassigned”. Other listed actions and owners are accurate."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurately extracts clear actions with owners; omits ambiguous invoices status as non-action. Minor casing on unassigned; clear and useful bullets."
    }
   ]
  },
  {
   "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, driven by £310k from new retail.\n* Margins fell to 37% from 41% due to shipping and warehouse move costs.\n* Headcount remained flat at 34.\n* The main Q4 risk is the unrenegotiated supplier contract expiring in November.\n* Cash at bank is £620k.",
   "latency_ms": 11815,
   "cost": 0.0200355,
   "task_score": 9.5,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise, exactly 5 bullets, each under 15 words, covers all key facts clearly and readable quickly."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Exactly five bullets, each under 15 words. Accurately captures all key metrics, drivers, risks, and cash position in a concise, 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": "On Tuesday, the council approved the scheme, with three members voting against it. Construction is expected to begin next year.\n\nNot stated: What the scheme actually is.",
   "latency_ms": 3748,
   "cost": 0.0053745,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise summary under 50 words, includes required 'Not stated' line with reasonable unstated fact. Minor stylistic nitpick only."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately includes all stated facts, adds no unsupported information, stays under 50 words, and provides the required separate-line missing detail. Clear and concise."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Perfect summary under 50 words, no added facts, exact required format and missing info note."
    }
   ]
  },
  {
   "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": "The new triage system reduced wait times by 22 minutes, but extra administrative work led two of four trial hospitals to abandon it.",
   "latency_ms": 11728,
   "cost": 0.021831,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Single sentence, 23 words, accurate summary capturing key facts; omits duration but within constraints, clear and concise."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Meets the one-sentence, 25-word limit (23 words) and preserves the key benefit and adoption problem. It slightly overstates causation by saying administrative work led hospitals to abandon it."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate one-sentence summary under 25 words capturing key results; minor causal inference and omitted admin-time detail are acceptable for condensation."
    }
   ]
  },
  {
   "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": "Preliminary results show the drug reduced symptoms in 60% of patients. However, this finding is highly limited because the study tested only 34 people (all under 40) and lacked a control group.",
   "latency_ms": 5419,
   "cost": 0.0081435,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise, retains limitation, under 60 words (32 words). Minor stylistic redundancy but no factual or instruction issues."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately preserves the 60% result and all key limitations: small sample, under-40 participants, no control group, and preliminary status. It is clear, concise, and under 60 words."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate summary under 60 words; limitations fully preserved. Minor strengthening of claims ('show/reduced' vs 'suggest/reduces', omits 'about') but still strong and clear."
    }
   ]
  },
  {
   "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 proposes cutting prices to boost market share, arguing that increased sales volume will offset the lower price point. In contrast, Finance opposes the discount, citing a 2024 price cut that resulted in only a 4% volume lift against an 11% margin loss. Instead of lowering prices, Finance advocates investing the equivalent budget into customer retention initiatives.",
   "latency_ms": 5288,
   "cost": 0.007536,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, balanced, concise; under 80 words. Fair representation of both sides with correct data."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately and neutrally presents Marketing’s volume-based case and Finance’s margin-and-retention case, including the 2024 evidence. It is clear, balanced, and well under 80 words."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Accurate fair summary under 80 words with equal weight; fully meets all criteria with no 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.",
   "latency_ms": 5785,
   "cost": 0.007299,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Correct decision and decider identified, but omits collaborative confirmation from B/C context; concise but slightly incomplete on 'who decided' nuance."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately states the decision to keep the launch in September and correctly identifies A as the decision-maker. It is concise and in one line."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 9,
     "violates": false,
     "reasoning": "Correctly identifies A's decision to keep September launch; one-line format followed; clear and useful with negligible phrasing nit."
    }
   ]
  },
  {
   "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": "Over 3 years, the £2.1m programme reached 14,000 participants, reporting a 19% improvement in the primary outcome measure compared with the comparison group.",
   "latency_ms": 6801,
   "cost": 0.010791,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Retains all four numbers, accurate, concise, under 40 words (23), clear and useful summary."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "It preserves all four numbers and the reported, comparative outcome claim in 23 words. “Over 3 years” is slightly less exact than “ran for 3 years,” as it can imply a period exceeding three years."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "All four numbers retained; 23 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": "**Migration Cost & Risk Summary**\n\n*   **Dual-running cost:** 3 months of paying for both platforms simultaneously.\n*   **Exit penalty:** Triggered if we terminate the old contract before June. \n*   **Risk reduction:** Post-migration, a 30% drop in incidents will lower operational costs and downtime.\n\n*Action:* We must align the 9-month schedule to avoid the June exit penalty.",
   "latency_ms": 6433,
   "cost": 0.0088485,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 5,
     "violates": true,
     "reasoning": "Content accurate and relevant but exceeds 70-word limit (~70+ words including headers) and uses bullet formatting not requested; slightly less concise than required."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Concise and finance-focused, accurately identifies dual-running cost, early-exit penalty, and expected incident reduction. Minor overstatement: incident savings are presented as certain rather than estimated, and it omits the 40-service sco"
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate cost/risk focus, under 70 words, clear bullets for busy FD; 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": "* Supply chain disruption due to reliance on a single-source supplier.\n* Inability to meet capacity requirements due to rapid demand growth (20% annually).\n* Operational disruption or increased costs when the warehouse lease expires in 14 months.\n* Security vulnerabilities and system failure risks when the finance system becomes unsupported next April.\n* Cash flow strain caused by 90-day payment terms with the largest customer.",
   "latency_ms": 4984,
   "cost": 0.0069945,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise bullets covering risks only, max 5, no preamble/solutions. Minor omission: didn't note low turnover as positive or unaddressed but not required."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Exactly five bullet-pointed risks, with no preamble or solutions. Accurately identifies the material supply, capacity, lease, system-support, and cash-flow risks."
    },
    {
     "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 all risks while omitting the non-risk."
    }
   ]
  },
  {
   "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": "**UK small firms using AI grow 8% faster**\n\nA study of 1,200 UK firms found 2025 AI adopters grew 8% faster, but researchers cannot prove if the tools caused the growth or successful businesses simply adopt them sooner.",
   "latency_ms": 10567,
   "cost": 0.0167475,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Meets word limits exactly, accurate summary, clear and concise, well-suited for busy reader."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Meets both word limits and accurately conveys the sample, timing, 8% result, and causation caveat. Minor omission: it says firms “grew” rather than specifying revenue growth."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, within limits (7+30 words), clear and useful; tiny polish possible on phrasing."
    }
   ]
  },
  {
   "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": "There are no findings to summarise in this text.",
   "latency_ms": 2303,
   "cost": 0.0024645,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Correct, follows instructions, concise, clear; appropriately identifies no findings exist without padding."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Correctly states that the text contains no findings to summarise, as instructed. It is concise, plain, accurate, and well under 40 words."
    },
    {
     "judge": "x-ai/grok-4.5",
     "score": 10,
     "violates": false,
     "reasoning": "Correctly identifies no findings; under 40 words; plain and exact per instructions; fully useful and clear."
    }
   ]
  }
 ]
}