{
 "entity": "deepseek-v4-flash",
 "entity_type": "model",
 "category": "Summarising",
 "suite": "suite-2026-08-tasks/summarising",
 "model": "deepseek/deepseek-v4-flash",
 "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": 83,
 "caps": 0,
 "cost_usd": 0.1045,
 "started_at": "2026-08-13T09:38:12.854Z",
 "finished_at": "2026-08-13T09:39:17.174Z",
 "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 supplier by Friday. (Tom)\n- Look at pricing for new CRM. (unassigned)\n- Update cashflow for board pack before the 20th. (Priya)",
   "latency_ms": 6292,
   "cost": 0.00012227,
   "task_score": 6,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Missed the 'reconcile March invoices' action item (unassigned), otherwise accurate, well-formatted, concise list of remaining items with correct owners."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, accurately extracting the action items and their owners, formatting them as a bulleted list, and including no extraneous text."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 6,
     "violates": false,
     "reasoning": "It correctly captures three likely actions and owners, but omits reconciling the March invoices, which is an outstanding action with no stated owner and should be listed as 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, driven by new retail channel.\n- Retail channel contributed £310k.\n- Margins slipped to 37% from 41% due to shipping and warehouse move.\n- Headcount remained flat at 34.\n- Main risk: supplier contract expires November, not renegotiated; cash £620k.",
   "latency_ms": 8699,
   "cost": 0.00009350614,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 7,
     "violates": false,
     "reasoning": "Accurate, concise, follows 5-bullet format, though last bullet merges two facts, slightly overloaded."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, including the exact bullet count and word limit per bullet. It accurately and concisely captures all key information from the source text."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Exactly five bullets, each under 15 words. Accurately covers revenue, retail contribution, margin causes, headcount, supplier risk, and cash."
    }
   ]
  },
  {
   "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: the cost of the scheme.",
   "latency_ms": 3889,
   "cost": 0.0000332444,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise summary under 50 words, follows format with 'Not stated' line, plausible missing fact."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, summarizing the text accurately in under 50 words and correctly identifying a missing detail on a separate line using the exact required phrasing."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately preserves all stated facts, stays under 50 words, uses a separate required “Not stated:” line, and identifies a relevant missing detail without inventing facts."
    }
   ]
  },
  {
   "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 trial across four hospitals cut waiting times by 22 minutes but added 10 minutes admin work per shift; two sites quit early.",
   "latency_ms": 15525,
   "cost": 0.00016127426,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, single sentence, 24 words, concise, captures key facts well."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 8,
     "violates": false,
     "reasoning": "Successfully condenses the text into a single 24-word sentence. However, it omits the core subject (the 'new triage system'), making it sound like the trial itself cut waiting times, which is a minor imprecision."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately preserves all key findings, trade-off, scope, and early withdrawals in one clear 24-word sentence."
    }
   ]
  },
  {
   "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 show a 60% symptom reduction in 34 patients under 40, but with no control group, the finding is preliminary.",
   "latency_ms": 3324,
   "cost": 0.000029078,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise, preserves limitation, under 60 words. Slightly could clarify 'no control group' implications more, but solid summary meeting constraints."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 5,
     "violates": false,
     "reasoning": "The response alters the meaning: 'reduces symptoms in 60% of patients' is factually different from 'a 60% symptom reduction'. Otherwise, it is concise and includes the required limitations."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Concise and preserves the small, under-40 sample, lack of control group, and preliminary caution. However, it ambiguously changes “reduces symptoms in about 60% of patients” into a “60% symptom reduction,” which could imply reduction magnit"
    }
   ]
  },
  {
   "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 argues a price cut will boost volume enough to offset lower margins and win share. Finance counters that the 2024 cut yielded only 4% volume growth versus an 11% margin loss, advocating instead for retention spending. Both sides prioritize profitability but disagree on the most effective strategy.",
   "latency_ms": 4519,
   "cost": 0.00002937774,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, balanced, concise, within word limit (~48 words). Fairly represents both sides equally, clear language."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly summarizes the disagreement, giving equal weight to both sides. It is highly concise, clear, and well under the 80-word limit."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 9,
     "violates": false,
     "reasoning": "Accurately and concisely presents both positions, including the key 2024 evidence and retention alternative. It is under 80 words and gives broadly equal weight. The added claim that both prioritize profitability slightly over-interprets Ma"
    }
   ]
  },
  {
   "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 was confirmed; decided by A, with agreement from B and C.",
   "latency_ms": 3235,
   "cost": 0.0000091028,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise, captures decision and decider(s); minor nuance C didn't 'agree' but confirmed packaging date, slight imprecision."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, stating the decision and the decision-maker in a single, clear line."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Correctly identifies that the launch remains in September and that A made the final decision. However, C only provided packaging information and did not explicitly agree, so attributing agreement to C is slightly inaccurate."
    }
   ]
  },
  {
   "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": "A 3-year, £2.1m programme reached 14,000 participants, achieving a 19% improvement in the primary outcome vs. the comparison group.",
   "latency_ms": 5592,
   "cost": 0.00010612,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "All four numbers retained, under 40 words, accurate, clear, concise."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly compresses the text to 19 words (well under the 40-word limit) while retaining all four required numbers and the original meaning."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Concise and under 40 words, retaining all four numbers and the comparison group. “Achieving” slightly strengthens the original cautious wording “reported,” but meaning is otherwise preserved."
    }
   ]
  },
  {
   "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: 40 services over 9 months. Key cost/risk: 3 months dual-running (paying both platforms). Penalty if exiting old contract before June. After migration, 30% fewer incidents reduces operational cost. Risk: dual-running expense and penalty exposure.",
   "latency_ms": 4564,
   "cost": 0.00003527062,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 7,
     "violates": false,
     "reasoning": "Accurate, concise, under 70 words, focused on cost/risk as requested. Slightly choppy phrasing but clear and useful for a finance director."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 9,
     "violates": false,
     "reasoning": "Excellent summary that perfectly targets the finance director's priorities (cost and risk). It is highly concise, accurate, and well under the 70-word limit."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Concise and finance-focused, covering dual-running costs, early-exit penalty risk, and expected incident reduction. Minor issue: it states fewer incidents “reduces operational cost,” which is plausible but not explicitly provided."
    }
   ]
  },
  {
   "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\n- Warehouse lease ending in 14 months\n- Finance system unsupported after next April\n- 90-day payment terms with largest customer",
   "latency_ms": 5594,
   "cost": 0.000121312,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Correctly lists risks only, no preamble/solutions, but omits demand growth (20%/yr) as potential risk of outpacing supply/capacity; otherwise concise and accurate."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, listing only the risks as bullets with no preamble or solutions, and stays under the maximum limit of 5."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Correctly identifies four clear risks in the required bullet-only format. It omits the potential capacity/fulfilment risk from 20% annual demand growth, which could matter alongside the single-source supplier and expiring warehouse lease."
    }
   ]
  },
  {
   "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": "**Headline:** AI Tools Boost UK Small Business Revenue 8%  \n**Standfirst:** A study of 1,200 UK small businesses found that those adopting at least one AI tool in 2025 grew revenue 8% faster, though causation is unclear.",
   "latency_ms": 38232,
   "cost": 0.000407302,
   "task_score": 6,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Concise and within limits, but headline implies causation ('Boost') contradicting the article's stated uncertainty about causality—a notable accuracy issue."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 7,
     "violates": false,
     "reasoning": "Word counts and sentence constraints are met. However, the headline's use of 'Boost' implies causation, which directly contradicts the study's findings, though the standfirst clarifies this."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 6,
     "violates": false,
     "reasoning": "All length constraints are met. The standfirst accurately states the association and caveat, but the headline’s “Boost” asserts causation the study explicitly could not establish."
    }
   ]
  },
  {
   "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 key findings. The text is a brief acknowledgment of a message and a commitment to act on Monday.",
   "latency_ms": 1938,
   "cost": 0.0000287,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Correctly identifies no findings exist, concise, follows instructions, under word limit, clear and useful."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response correctly identifies that there are no findings, states it plainly, and stays well under the 40-word limit."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Accurately identifies that there are no substantive findings. It stays under 40 words, but the second sentence adds unnecessary detail despite the instruction to state this plainly without padding."
    }
   ]
  }
 ]
}