{
 "entity": "grok-4-5",
 "entity_type": "model",
 "category": "Study notes",
 "suite": "suite-2026-08-tasks2/study-notes",
 "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": 88,
 "caps": 2,
 "cost_usd": 0.1535,
 "started_at": "2026-08-14T13:25:18.897Z",
 "finished_at": "2026-08-14T13:26:10.910Z",
 "tasks": [
  {
   "id": "st1",
   "name": "Condense a topic",
   "prompt": "Make revision notes on photosynthesis for GCSE level: maximum 10 bullet points, each under 15 words, must include the word equation, no sub-bullets.",
   "output": "- Photosynthesis makes glucose in plants using light energy.\n- Word equation: carbon dioxide + water → glucose + oxygen.\n- Requires light and chlorophyll to occur.\n- Takes place in chloroplasts of plant cells.\n- Chlorophyll absorbs sunlight for the reaction.\n- Glucose provides energy or stores as starch.\n- Oxygen released as a by-product into air.\n- Rate limited by light, temperature or CO2.\n- Produces food and oxygen essential for life.\n- Endothermic process transferring light to chemical energy.",
   "latency_ms": 16555,
   "cost": 0.0053324,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise, meets 10 bullet limit, under 15 words each, includes word equation, no sub-bullets. Minor stylistic issues only."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, including the constraints on bullet count, word count per bullet, inclusion of the word equation, and no sub-bullets. The content is accurate and highly useful for GCSE revision."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Meets all explicit constraints: exactly 10 bullets, each under 15 words, no sub-bullets, and includes a correct word equation. Content is accurate, GCSE-appropriate, concise, and covers requirements, location, products, uses, limiting facto"
    }
   ]
  },
  {
   "id": "st2",
   "name": "Flashcards that test",
   "prompt": "Write 6 flashcards (Q on one line, A on the next) on the causes of World War One. Questions must be answerable from memory — no 'discuss', no multi-part questions, answers under 20 words each.",
   "output": "What was the immediate trigger for World War One?\nAssassination of Archduke Franz Ferdinand in Sarajevo in 1914.\n\nWhich alliance system bound Germany, Austria-Hungary and Italy before WWI?\nThe Triple Alliance.\n\nWhich alliance linked Britain, France and Russia before WWI?\nThe Triple Entente.\n\nHow did militarism contribute to the outbreak of WWI?\nArms races and large standing armies increased tensions and readiness for war.\n\nHow did imperialism help cause World War One?\nRivalries over colonies heightened competition among European powers.\n\nHow did nationalism fuel the start of World War One?\nEthnic pride and desires for independence created instability in Europe.",
   "latency_ms": 5957,
   "cost": 0.0017984,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Meets format, word limits, answerable from memory, no multi-part questions. Minor issue: 'how did X contribute' arguably borderline broad but still concise, factual, and single-answer."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, providing 6 accurately formatted flashcards with concise, single-part questions and answers well under the 20-word limit."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Exactly six clear flashcards with one question followed by one answer each. All answers are under 20 words, historically accurate, memory-answerable, and cover key causes and trigger."
    }
   ]
  },
  {
   "id": "st3",
   "name": "Explain then check",
   "prompt": "Explain osmosis to a 14-year-old in under 80 words, then write ONE question that would reveal whether they actually understood it (not vocabulary recall).",
   "output": "**Osmosis** is when water sneaks through a thin barrier (like a cell wall) that lets water pass but blocks bigger stuff like sugar or salt. Water always moves from the side with more free water (less “stuff” dissolved) to the side with less free water (more “stuff”), trying to even things out. That’s why a dry raisin swells in plain water—water rushes in.\n\n**Question:**  \nYou put a limp celery stick in a glass of very salty water overnight. What happens to the celery and why?",
   "latency_ms": 6514,
   "cost": 0.0019304,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Clear, accurate explanation within word limit, good conceptual question testing understanding rather than recall; minor stylistic formatting but overall strong."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "Accurate, age-appropriate explanation well under the 80-word limit. The question effectively tests conceptual application rather than rote memorization."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Clear, age-appropriate explanation and an application question that tests understanding. It stays under 80 words. Minor accuracy issue: osmosis occurs across a selectively permeable cell membrane, not typically the cell wall."
    }
   ]
  },
  {
   "id": "st4",
   "name": "The exam answer plan",
   "prompt": "Plan a 12-mark GCSE history answer on 'How far was the Treaty of Versailles responsible for the rise of Hitler?' Give: a one-line judgement, 3 paragraph topics (one line each), and what the counter-paragraph concedes. No essay, just the plan, under 120 words.",
   "output": "**Plan:**\n\n**Judgement:** The Treaty of Versailles was partly responsible for Hitler’s rise, but other factors were more decisive.\n\n**Paragraph topics:**\n1. TOV’s harsh terms (reparations, war guilt, territorial losses) fuelled German resentment Hitler exploited.\n2. Economic crises (hyperinflation, Depression) created desperation enabling Nazi gains.\n3. Political weakness (Weimar instability, elite miscalculations) allowed Hitler’s appointment.\n\n**Counter-paragraph concedes:** TOV created lasting grievances and propaganda opportunities that aided Nazis, though not the sole or main cause.",
   "latency_ms": 4722,
   "cost": 0.0015344,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 7,
     "violates": false,
     "reasoning": "Meets structure and word limit (~90 words), clear judgement, three topics, counter-paragraph concession included. Minor redundancy since counter-concession overlaps paragraph 1, slightly reducing distinctiveness."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, providing a concise, accurate plan well under the 120-word limit. The historical content is spot-on for a GCSE level answer."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Clear, accurate, concise plan with a balanced judgement, three relevant paragraph topics, and an appropriate concession. It follows the requested structure, avoids writing an essay, and is well under 120 words."
    }
   ]
  },
  {
   "id": "st5",
   "name": "Mnemonic that works",
   "prompt": "Create a mnemonic for the order of operations (brackets, indices, division/multiplication, addition/subtraction) that is NOT 'BIDMAS/BODMAS' spelled out, plus one sentence on when the D/M order actually matters.",
   "output": "**Betty’s Incredible Doughnuts Make Awesome Snacks**\n\nD/M order (left-to-right) only matters in mixed runs without brackets, e.g. \\(10 \\div 5 \\times 2 = 4\\) (not 1).",
   "latency_ms": 24603,
   "cost": 0.0058784,
   "task_score": 8,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Meets constraints: novel mnemonic, correct explanation of D/M order mattering with valid example. Clear and concise, though example could be slightly clearer for non-technical readers."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response provides a creative mnemonic phrase, avoiding simply spelling out the acronym, and accurately explains the D/M left-to-right rule in exactly one sentence."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 8,
     "violates": false,
     "reasoning": "Clear, memorable mnemonic and correct left-to-right example. Minor accuracy issue: D/M order can also matter within brackets; it matters whenever division and multiplication occur at the same level in a mixed run."
    }
   ]
  },
  {
   "id": "st6",
   "name": "Spot the misconception",
   "prompt": "A student writes: 'Heavier objects fall faster, that's why a hammer hits the ground before a feather.' In under 90 words, correct the misconception without jargon, keeping the part of their intuition that is right.",
   "output": "You're right that a hammer hits the ground before a feather in everyday air. But it's not because the hammer is heavier. Drop them in a vacuum (no air) and they fall side by side. Air just pushes back harder on the light, spread-out feather, slowing it more.",
   "latency_ms": 5029,
   "cost": 0.0017344,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Accurate, jargon-free, concise, preserves valid intuition about everyday observation, under 90 words. Minor: could better clarify gravity equality more explicitly."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly corrects the misconception without jargon, validates the student's correct observation about everyday conditions, and stays well under the 90-word limit."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Accurately preserves the student’s correct observation in everyday air, explains that air slows the feather more, and gives the vacuum comparison clearly. It is concise, jargon-free enough, and under 90 words."
    }
   ]
  },
  {
   "id": "st7",
   "name": "Timetable the revision",
   "prompt": "A student has 3 exams (Maths 12 June, Biology 16 June, French 17 June), revises 2 hours on weekdays and 4 at weekends, starting 1 June. Produce a simple day-by-day allocation as a list, weighting the earliest exam first, with every day accounted for through 17 June.",
   "output": "**Day-by-day revision allocation (1–17 June)**  \n(Assuming a calendar where 1 June is Saturday, e.g. 2024; weekends = 4 h, weekdays = 2 h. Earliest exam is weighted first by giving Maths essentially all study time until its exam, then Biology, then French. Every day is listed.)\n\n- 1 June (Sat): Maths 4 h  \n- 2 June (Sun): Maths 4 h  \n- 3 June (Mon): Maths 2 h  \n- 4 June (Tue): Maths 2 h  \n- 5 June (Wed): Maths 2 h  \n- 6 June (Thu): Maths 2 h  \n- 7 June (Fri): Maths 2 h  \n- 8 June (Sat): Maths 4 h  \n- 9 June (Sun): Maths 4 h  \n- 10 June (Mon): Maths 2 h  \n- 11 June (Tue): Maths 2 h  \n- 12 June (Wed, Maths exam): Biology 2 h  \n- 13 June (Thu): Biology 2 h  \n- 14 June (Fri): Biology 2 h  \n- 15 June (Sat): Biology 4 h  \n- 16 June (Sun, Biology exam): French 4 h  \n- 17 June (Mon, French exam): French 2 h  \n\n(Maths receives the large majority of hours; Biology the next block; French the final days. Adjust exam-day timing if your exams are morning/afternoon only.)",
   "latency_ms": 36953,
   "cost": 0.0118444,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 5,
     "violates": false,
     "reasoning": "Covers all days but neglects Biology/French balance—too much time on Maths pre-exam, minimal for French, and questionable weekday/weekend assumption reduces usefulness and accuracy."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, providing a clear day-by-day list from 1 to 17 June. It correctly applies the weekday/weekend hour rules and weights the earliest exams first as requested."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 9,
     "violates": false,
     "reasoning": "Clear, complete day-by-day list with correct 2-hour weekday/4-hour weekend allocations under its stated calendar assumption. It prioritizes exams in order and covers every date. Minor limitation: the year/weekend pattern was not provided, s"
    }
   ]
  },
  {
   "id": "st8",
   "name": "Simplify without losing truth",
   "prompt": "Rewrite for a 12-year-old in under 60 words without making it false: 'Enzymes are biological catalysts that lower the activation energy of reactions by providing an alternative reaction pathway, and are highly specific due to the complementary shape of their active site.'",
   "output": "Enzymes are proteins that speed up body reactions. They lower the energy barrier by offering another pathway. Each enzyme fits only certain molecules due to its unique active site shape, like a lock and key.",
   "latency_ms": 17773,
   "cost": 0.0061864,
   "task_score": 7,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 7,
     "violates": false,
     "reasoning": "Accurate, simplified, and under 60 words (34). Minor: 'like a lock and key' slightly informal but fine. Clear and correct for target audience."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response accurately simplifies the concept for a 12-year-old using the classic lock-and-key analogy. It is well under the 60-word limit and maintains factual correctness."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 6,
     "violates": false,
     "reasoning": "Clear, age-appropriate, and under 60 words. However, not all enzymes are proteins (some are RNA), and “body reactions” is narrower than biological reactions, so it slightly violates the requirement not to make it false."
    }
   ]
  },
  {
   "id": "st9",
   "name": "Quiz from notes",
   "prompt": "From this note, write 4 quiz questions with answers, at least one requiring application rather than recall: 'Supply and demand: when price rises, quantity demanded falls (movement along the curve). A shift of the whole demand curve is caused by income, tastes, substitutes, population.'",
   "output": "**Quiz Questions**\n\n1. **Recall:** According to the law of demand, what happens to quantity demanded when the price of a good rises?  \n   **Answer:** Quantity demanded falls (this is a movement along the demand curve).\n\n2. **Recall:** What is the difference between a movement along the demand curve and a shift of the entire demand curve?  \n   **Answer:** A movement along the curve is caused by a change in the good’s own price; a shift of the whole curve is caused by other factors (income, tastes, prices of substitutes, population).\n\n3. **Recall:** List the factors that can cause the entire demand curve to shift.  \n   **Answer:** Income, tastes, prices of substitutes, and population.\n\n4. **Application:** Suppose the price of coffee stays constant, but people’s incomes rise and coffee is a normal good. At the same time, a popular health report says coffee improves focus, and the population of coffee drinkers grows. What happens to the demand curve for coffee, and how would this differ from a simple rise in the price of coffee?  \n   **Answer:** The demand curve for coffee shifts rightward (increase in demand) due to higher income, changed tastes, and larger population. This is different from a rise in the price of coffee, which would only cause a movement upward/left along the existing demand curve (lower quantity demanded), not a shift of the curve itself.",
   "latency_ms": 9150,
   "cost": 0.0032664,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, well-structured, includes clear application question with correct economic reasoning. Meets task requirements fully, clear and concise."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, providing exactly 4 quiz questions with answers based on the text, including a clear application question. It is accurate, clear, and highly useful."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Provides exactly four questions with answers, including a clear application scenario. Accurately distinguishes movements along demand from shifts and correctly identifies stated shift factors. Clear, concise, and useful."
    }
   ]
  },
  {
   "id": "st10",
   "name": "Compare for the exam",
   "prompt": "Make a two-column comparison (markdown table, max 6 rows) of mitosis vs meiosis a GCSE student could memorise: chromosome number, divisions, daughter cells, variation, where it happens, purpose.",
   "output": "| Feature              | Mitosis                          | Meiosis                              |\n|----------------------|----------------------------------|--------------------------------------|\n| Chromosome number   | Same as parent (2n → 2n)        | Halved (2n → n)                     |\n| Divisions           | One                              | Two                                 |\n| Daughter cells      | 2 identical                      | 4 genetically different             |\n| Variation           | None (clones)                    | Yes (crossing over + independent assortment) |\n| Where it happens    | Body cells (growth/repair)       | Sex organs (gametes)                |\n| Purpose             | Growth, repair, asexual repro.   | Sexual repro. + genetic variation   |",
   "latency_ms": 9420,
   "cost": 0.0034144,
   "task_score": 5,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Accurate, concise, exactly 6 rows, covers all requested categories, well-formatted markdown table suitable for GCSE memorisation."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 5,
     "violates": true,
     "reasoning": "The table contains three columns instead of the requested two, and has 8 rows (including header and divider) exceeding the max 6 rows constraint."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 5,
     "violates": true,
     "reasoning": "Accurate, concise GCSE-level content covering all six requested features. However, it uses three columns (Feature, Mitosis, Meiosis), not literally a two-column table. Minor wording imprecision: meiosis occurs in sex organs to produce gamet"
    }
   ]
  },
  {
   "id": "st11",
   "name": "The night-before triage",
   "prompt": "A student has one evening before a biology exam and hasn't revised topics: cells, enzymes, digestion, respiration, photosynthesis. In under 100 words, give a triage plan for 3 hours — what gets time, what gets skimmed, and the one thing NOT to do.",
   "output": "**Triage plan (3 hrs):**  \n- **Time (2 hrs):** Respiration + photosynthesis (core processes, high yield, interlinked).  \n- **Skim (1 hr):** Cells + enzymes (foundations) then quick digestion pass.  \n- **NOT:** Do not make pretty notes or reread passively—use active recall/practice questions only.  \n\n(58 words)",
   "latency_ms": 10009,
   "cost": 0.0028384,
   "task_score": 9,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 8,
     "violates": false,
     "reasoning": "Concise, practical, fits word limit, reasonable triage logic, clear NOT-to-do; minor debatable prioritization but solid overall."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions, provides a highly practical and concise triage plan, and stays well under the 100-word limit."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 9,
     "violates": false,
     "reasoning": "Clear, practical 3-hour allocation covering all topics, prioritizing linked high-yield processes and specifying active recall. Minor limitation: the 1-hour skim does not divide time among cells, enzymes, and digestion, but it remains usable"
    }
   ]
  },
  {
   "id": "st12",
   "name": "Refuse to do the homework",
   "prompt": "A student pastes an essay question and says 'write this so I can hand it in'. Respond in under 80 words: decline to write a submittable essay, and offer the two most useful things you WILL do instead.",
   "output": "**No, I won't write an essay you can hand in.**\n\nInstead, I will:\n1. Help you brainstorm a strong thesis, outline, and key arguments.\n2. Review and give targeted feedback on a draft you write yourself.",
   "latency_ms": 4380,
   "cost": 0.0015424,
   "task_score": 10,
   "judges": [
    {
     "judge": "anthropic/claude-sonnet-5",
     "score": 9,
     "violates": false,
     "reasoning": "Correctly declines, offers two useful alternatives, concise, under 80 words, matches instructions well."
    },
    {
     "judge": "google/gemini-3.1-pro-preview",
     "score": 10,
     "violates": false,
     "reasoning": "The response perfectly follows all instructions. It is well under the 80-word limit, clearly declines the request, and offers two highly useful alternative ways to assist the student."
    },
    {
     "judge": "openai/gpt-5.6-terra",
     "score": 10,
     "violates": false,
     "reasoning": "Clearly declines to produce a submittable essay and offers exactly two highly useful alternatives: planning support and feedback on the student’s own draft. It is concise, professional, and well under 80 words."
    }
   ]
  }
 ]
}