{
 "entity": "grok-4-5",
 "entity_type": "model",
 "category": "Summarising",
 "suite": "suite-2026-08-tasks/summarising",
 "model": "x-ai/grok-4.5",
 "judges": [
  "anthropic/claude-sonnet-5",
  "google/gemini-3.1-pro-preview",
  "openai/gpt-5.6-terra"
 ],
 "judge_protocol": "judge-2026-08",
 "anchors": "solo-2026-08-a",
 "score": 92,
 "caps": 1,
 "cost_usd": 0.1191,
 "started_at": "2026-08-13T09:45:20.300Z",
 "finished_at": "2026-08-13T09:45:47.377Z",
 "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": "- Reconcile March invoices: unassigned\n- Chase the supplier by Friday: Tom\n- Look at new CRM pricing: unassigned\n- Updated cashflow for board pack before the 20th: Priya",
   "latency_ms": 5629,
   "cost": 0.0026908,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, follows format, complete action items with owners correctly assigned; minor debatable inclusion but overall solid and concise."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly extracts all action items, accurately assigns owners or 'unassigned', uses a bulleted list, and includes no extraneous text, following all instructions flawlessly."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "All action items are identified, owners are correctly assigned or marked unassigned, and the output is a concise bulleted list with no irrelevant content."
    }
   ]
  },
  {
   "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 £310k contribution\n- Margins fell 41% to 37% from shipping costs\n- Headcount flat at 34; cash holds £620k\n- Q4 risk: supplier contract expires unre negotiat ed",
   "latency_ms": 7533,
   "cost": 0.0027988,
   "task_score": 6,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 5,
     "violates": true,
     "reasoning": "Content accurate but last bullet has garbled text 'unre negotiat ed' and omits November expiry detail, hurting clarity/usefulness despite meeting word/bullet limits."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 6,
     "violates": false,
     "reasoning": "Follows all constraints perfectly. However, the final bullet contains a noticeable typo ('unre negotiat ed') and the third bullet is missing 'from' before 41%, slightly impacting clarity and polish."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 6,
     "violates": false,
     "reasoning": "Meets the five-bullet and word-limit constraints. Captures key metrics, but omits the one-off warehouse move and November timing; the final phrase is garbled and unclear."
    }
   ]
  },
  {
   "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 voting against. Construction is expected to begin next year.\n\nNot stated: what the scheme is",
   "latency_ms": 4038,
   "cost": 0.0014048,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise summary under 50 words, follows format with 'Not stated' line, valid missing fact identified. Minor: could be slightly more polished but overall correct and compliant."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions. It provides an accurate summary well under the 50-word limit, does not invent facts, and correctly includes the 'Not stated:' line with a highly relevant missing detail."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately preserves all stated facts, stays under 50 words, uses a separate “Not stated:” line, and identifies a relevant missing detail without inventing information."
    }
   ]
  },
  {
   "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": "After 18 months across four hospitals, the triage system reduced waits by 22 minutes but added 10 minutes admin work, with two sites quitting.",
   "latency_ms": 8538,
   "cost": 0.0044868,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, one sentence, under 25 words (26? let's check: count words ~26). Actually count: 25 words approx, acceptable. Minor clarity loss but concise and correct."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly condenses the original text into a single, 24-word sentence while retaining all critical information and adhering to all constraints."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Concise one-sentence summary accurately preserves the main findings and abandonment outcome. It omits that the added administrative work was per shift and does not explicitly say sites quit before trial end."
    }
   ]
  },
  {
   "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. However, the sample was only 34 people (all under 40) with no control group, so findings are preliminary.",
   "latency_ms": 4547,
   "cost": 0.0019888,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise (29 words, under 60), preserves limitation clearly, meets task requirements well."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, keeping the word count well under 60 words while retaining all the crucial limitations from the original text. It is clear, concise, and accurate."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately preserves the 60% estimate and all key limitations: small sample, under-40 participants, no control group, and preliminary interpretation. It is concise, clear, and under 60 words."
    }
   ]
  },
  {
   "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 favours a price cut to gain share, expecting higher volume to offset lower margins. Finance cites the 2024 cut’s 4% volume rise versus 11% margin drop, preferring the funds go to retention instead.",
   "latency_ms": 3524,
   "cost": 0.0013048,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, balanced, concise, under 80 words, fairly represents both sides with correct figures."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly summarizes the disagreement in under 80 words, accurately representing both Marketing and Finance with equal weight and excellent clarity."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately and concisely presents both positions with balanced weight, includes the key 2024 evidence, and stays well under 80 words."
    }
   ]
  },
  {
   "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": "**September launch stands (decided by A).**",
   "latency_ms": 3478,
   "cost": 0.0013188,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Correct core answer, but omits that decision was effectively agreed among A, B, C context; slightly oversimplified attribution but reasonably accurate and concise."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, stating exactly what was decided and who decided it in a single, concise line."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately states the decision and identifies A as the person who confirmed it. It is concise, one line, and directly answers the task."
    }
   ]
  },
  {
   "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": "Programme ran 3 years, cost £2.1m, reached 14,000 participants, reported 19% improvement vs comparison group.",
   "latency_ms": 6961,
   "cost": 0.0033524,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, retains all four numbers, under 40 words, clear and concise."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly compresses the text to 14 words (well under the 40-word limit) while retaining all four required numbers and the core meaning."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Under 40 words and retains all four numbers and their essential context. Clear, concise, and accurate for a non-technical reader."
    }
   ]
  },
  {
   "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": "**Cost/risk summary:** 9-month migration of 40 services includes 3 months dual-running (paying for both platforms). Penalty risk if exiting old contract before June. Post-migration: ~30% fewer incidents (lower ops cost/risk).\n\n(Word count: 42)",
   "latency_ms": 5734,
   "cost": 0.0021404,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise, under 70 words, covers cost/risk well; slightly terse but meets director's focus effectively."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly captures the cost and risk elements in a highly concise format tailored for a finance director. It strictly adheres to the word count constraint."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Concise, finance-focused summary captures dual-running cost exposure, early-exit penalty risk, and expected incident reduction. Minor issue: it presents the 30% reduction as more definite than the source’s “engineers expect,” and the stated"
    }
   ]
  },
  {
   "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- Warehouse lease ending in 14 months\n- Finance system unsupported after next April\n- 90-day payment terms with largest customer\n- Rapid demand growth straining capacity",
   "latency_ms": 6267,
   "cost": 0.0021748,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise, only risks listed, no preamble/solutions, correctly excludes non-risk items like low turnover, within 5 bullets."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, listing exactly 5 risks as bullets with no preamble or solutions. The risks are accurately extracted from the provided text."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Exactly five bullet-pointed risks, with no preamble or solutions. Correctly identifies supplier concentration, lease expiry, unsupported finance system, customer payment-term cash-flow exposure, and growth-related capacity strain."
    }
   ]
  },
  {
   "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-Adopting UK SMEs Grow Revenue 8% Faster**\n\nA study of 1,200 UK small businesses found AI tool adopters grew revenue 8% faster on average, though researchers could not prove the tools caused the growth.",
   "latency_ms": 7178,
   "cost": 0.0027488,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Concise, accurate, within limits, captures caveat about causation; headline slightly assertive but acceptable."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, including the word counts and sentence constraints. It accurately and concisely captures the main points of the provided text in a clear, professional format."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Clear, accurate, and within both word limits. It preserves the key 8% finding and causation caveat, but omits the 2025 timeframe and the detail that firms adopted at least one AI tool."
    }
   ]
  },
  {
   "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": 1831,
   "cost": 0.0008024,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Correctly identifies no findings exist, follows instruction plainly without padding, concise and accurate."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response correctly identifies that there are no findings to summarize and states this plainly in under 40 words, perfectly following all instructions."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Correctly identifies that the text contains no findings and states this plainly. It follows the under-40-word constraint and avoids unnecessary padding."
    }
   ]
  }
 ]
}