{
 "entity": "mistral-medium-3-5",
 "entity_type": "model",
 "category": "Summarising",
 "suite": "suite-2026-08-tasks/summarising",
 "model": "mistralai/mistral-medium-3-5",
 "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": 83,
 "caps": 2,
 "cost_usd": 0.1059,
 "started_at": "2026-08-13T10:18:33.967Z",
 "finished_at": "2026-08-13T10:18:56.861Z",
 "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 pricing for the new CRM: unassigned\n- Update cashflow for the board pack before the 20th: Priya",
   "latency_ms": 7902,
   "cost": 0.000555,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, well-formatted list matching notes; correctly assigns owners/unassigned. Minor debatable point: Priya's cashflow task was conditional, but reasonably represented."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly extracts all action items, assigns the correct owners (including 'unassigned'), formats them as a bulleted list, and includes no extraneous text."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "All action items are identified with appropriate owners. Priya’s cashflow ownership is correctly captured despite the stated dependency. The response is concise, complete, and follows the requested bullet-list format."
    }
   ]
  },
  {
   "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 up 12% to £1.4m, retail channel added £310k.\n- Margins fell to 37% due to shipping costs and warehouse move.\n- Headcount unchanged at 34 employees.\n- Q4 risk: supplier contract expires in November, not renegotiated.\n- Cash reserves stand at £620k.",
   "latency_ms": 5619,
   "cost": 0.0008145,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise, exactly 5 bullets, all under 15 words, covers all key facts clearly."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, providing exactly 5 bullets with under 15 words each. It accurately captures all key financial and operational details in a highly readable format."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise five-bullet summary within the word limit. It captures all key topics, though it omits the prior 41% margin and that the warehouse move was one-off."
    }
   ]
  },
  {
   "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; three members opposed it. Construction starts next year.\n\nNot stated: The scheme's purpose.",
   "latency_ms": 8613,
   "cost": 0.000336,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Accurate summary under 50 words, includes 'Not stated' line, but omits word count context, brief acceptable answer."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly summarizes the text in under 50 words without adding facts, and correctly includes the 'Not stated:' line with a highly relevant missing detail."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Accurately captures approval, opposition, and timing, and provides a relevant missing detail on a separate line. However, “Construction starts next year” is more definite than “is expected to begin next year,” slightly overstating certainty"
    }
   ]
  },
  {
   "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 18-month trial showed the new triage system cut wait times by 22 minutes but added 10 minutes of admin work per shift.",
   "latency_ms": 3204,
   "cost": 0.0003675,
   "task_score": 6,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 7,
     "violates": false,
     "reasoning": "Meets 25-word, one-sentence constraint; accurate but omits the abandonment detail, slightly reducing completeness."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 6,
     "violates": false,
     "reasoning": "Meets length constraints and summarizes the main trade-off, but omits the crucial detail that two sites abandoned the system, reducing its factual completeness."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 6,
     "violates": false,
     "reasoning": "Meets the one-sentence and 25-word limit (23 words). Accurately preserves the main benefit and workload drawback, but omits that two sites abandoned the system and the four-hospital scope."
    }
   ]
  },
  {
   "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 the drug reduces symptoms in ~60% of patients, but the study’s small sample (34 under-40s) and lack of a control group limit conclusions—findings remain preliminary.",
   "latency_ms": 4058,
   "cost": 0.000459,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise, under 60 words, preserves limitation clearly. Minor stylistic tightness but no real flaws."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly summarizes the text in 29 words (well under the 60-word limit) and successfully retains all the key limitations mentioned in the original text."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 9,
     "violates": false,
     "reasoning": "Accurately preserves the 60% result, small all-under-40 sample, absence of a control group, and preliminary limitation. It is concise and under 60 words. “Show” is slightly stronger than the source’s “suggest,” but the caveat offsets this."
    }
   ]
  },
  {
   "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 a price cut to boost market share, believing increased volume will offset lower margins. Finance opposes it, citing a 2024 price cut that lifted volume by 4% but reduced margins by 11%, preferring to invest in customer retention instead. Both sides aim to grow revenue but disagree on the best strategy.",
   "latency_ms": 3217,
   "cost": 0.000669,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, fair, balanced, concise; word count 55, under 80. Minor style but no factual/instruction issues."
    },
    {
     "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": "Accurate, balanced summary under 80 words. It clearly presents Marketing’s volume-led rationale and Finance’s evidence-based preference for retention. The closing statement slightly broadens the stated goals to revenue growth, but does not "
    }
   ]
  },
  {
   "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": "**WHAT was decided:** The launch remains in September.\n**WHO decided it:** A, B, and C (collectively).",
   "latency_ms": 1767,
   "cost": 0.000366,
   "task_score": 5,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Reasonable summary but not one line as instructed; format uses two lines/bolded headers instead of a single line."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 5,
     "violates": true,
     "reasoning": "The response accurately identifies the decision and the decision-makers, but it uses two lines instead of the requested one line."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 5,
     "violates": true,
     "reasoning": "Correctly identifies that the launch remains in September, but wrongly attributes the decision to A, B, and C collectively; A made the final decision. It also violates the explicit one-line requirement."
    }
   ]
  },
  {
   "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 programme ran for 3 years, cost £2.1m, reached 14,000 participants, and reported a 19% improvement.\"",
   "latency_ms": 2556,
   "cost": 0.0003765,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "All four numbers retained, well under 40 words, clear and concise; minor loss of 'compared with comparison group' detail but not required by constraint."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 8,
     "violates": false,
     "reasoning": "Successfully compressed the text to well under 40 words while retaining all four numbers. However, simply truncating the end loses the specific context of the 19% improvement, slightly reducing its usefulness."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 6,
     "violates": false,
     "reasoning": "It is under 40 words and retains all four numbers. However, it omits that the 19% improvement was in the primary outcome measure and relative to a comparison group, weakening accuracy and usefulness."
    }
   ]
  },
  {
   "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:**\n- **Cost:** 3 months of dual-running (both platforms paid).\n- **Risk:** Penalty if exiting old contract before June.\n- **Benefit:** 30% fewer incidents post-migration.\n- **Timeline:** 40 services migrated over 9 months.\n\n**Verdict:** Weigh dual-costs + penalty risk vs. long-term savings.",
   "latency_ms": 5101,
   "cost": 0.0007725,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, concise, under 70 words, covers cost/risk focus well; slightly terse formatting but effective for FD audience."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly extracts the cost and risk elements, presenting them in a highly scannable format for a busy executive. It strictly adheres to the under 70 words constraint."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Accurately captures dual-running cost, early-exit penalty risk, migration timeline, and expected incident reduction. It is concise and under 70 words. “Long-term savings” is implied rather than stated, and the finance focus could be sharper"
    }
   ]
  },
  {
   "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- Rapid demand growth (20% annually)\n- Warehouse lease expiration in 14 months\n- Unsupported finance system after next April\n- Extended payment terms (90 days) with largest customer",
   "latency_ms": 3502,
   "cost": 0.000492,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Correctly lists 5 risks, no solutions/preamble, concise, accurate extraction from text; excludes low turnover appropriately as not a risk."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, providing exactly 5 bulleted risks with no preamble or solutions, correctly identifying the risks from the text."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Exactly five bullet-pointed risks, with no preamble or solutions. Accurately captures all material risks stated; low staff turnover and supplier reliability are correctly omitted as non-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": "**Headline:** AI Boosts Small Business Growth by 8%\n\n**Standfirst:** UK study links AI adoption to faster revenue growth, but causality remains unclear.",
   "latency_ms": 3304,
   "cost": 0.0004035,
   "task_score": 7,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 6,
     "violates": false,
     "reasoning": "Headline concise and accurate but omits caveat implied lightly; standfirst captures nuance well within limits, meets word counts, clear and useful."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 8,
     "violates": false,
     "reasoning": "Follows all constraints perfectly. The headline implies causation ('Boosts') which contradicts the study's findings, but the standfirst clarifies this accurately. Very clear and concise."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 7,
     "violates": false,
     "reasoning": "Meets both length limits and is clear. However, “AI Boosts” implies causation despite the study explicitly not establishing it. The standfirst correctly caveats this but omits the 1,200-business sample and 2025 context."
    }
   ]
  },
  {
   "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": 3163,
   "cost": 0.000141,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Correctly identifies no findings exist, concise, follows instructions exactly, appropriate for non-technical reader."
    },
    {
     "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 and stating it plainly in under 40 words."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Correctly identifies that the text contains no substantive findings and states this plainly, exactly as instructed. Concise, clear, and within the word limit."
    }
   ]
  }
 ]
}