{ "entity": "gpt-5-6-terra", "entity_type": "model", "category": "Essays", "suite": "suite-2026-08-tasks/essays", "model": "openai/gpt-5.6-terra", "judges": [ "anthropic/claude-sonnet-5", "google/gemini-3.1-pro-preview", "x-ai/grok-4.5" ], "judge_protocol": "judge-2026-08", "anchors": "solo-2026-08-a", "score": 88, "caps": 9, "cost_usd": 0.2335, "started_at": "2026-08-13T09:21:35.480Z", "finished_at": "2026-08-13T09:22:23.832Z", "tasks": [ { "id": "es1", "name": "Structured argument", "prompt": "Write a 350-word argumentative essay answering: should secondary schools ban smartphones during the school day? Take one clear side, give three distinct supporting reasons, and address one counter-argument. Do not use the phrases 'in conclusion' or 'in today's world'.", "output": "Secondary schools should ban smartphones during the school day, allowing use only for documented medical needs or teacher-approved emergencies. This policy would not reject technology; it would protect the conditions students need to learn, socialize, and feel secure. Phones are powerful tools, but their constant availability in classrooms and corridors creates distractions that schools are uniquely positioned to limit.\n\nFirst, banning phones improves attention and academic achievement. Even a silent phone can divide a student's focus: notifications, messages, and the expectation of checking them compete with explanations, reading, and problem solving. Teachers then spend valuable minutes enforcing rules rather than teaching. A school-wide ban removes ambiguity and makes concentration the normal expectation for everyone, including students who find it difficult to resist apps designed to hold their attention.\n\nSecond, phone-free days can strengthen relationships and reduce harmful online behavior. At lunch and between lessons, students who are not staring at screens are more likely to talk, join activities, and notice classmates who may be isolated. Restricting access also reduces opportunities for cyberbullying, secret recording, cheating, and the rapid spread of humiliating images during school hours. These protections create a calmer, more respectful community.\n\nThird, a ban promotes fairness and safety. Not every family can afford a new device or generous data plan, yet phones can become visible markers of status. Removing them lowers pressure to display expensive possessions. It also limits filming in changing rooms, conflicts arranged through group chats, and contact with strangers while students are meant to be supervised. Schools cannot eliminate every risk, but they can reduce predictable ones.\n\nOpponents argue that smartphones help parents reach children and can support learning through cameras, research, and educational applications. Those benefits are real, but they do not require unrestricted personal access. Parents can contact the school office, and teachers can authorize devices for a specific lesson when no better resource exists. Secure storage and clear emergency procedures can preserve safety without normalizing distraction. A consistent, bell-to-bell ban gives students something increasingly valuable: uninterrupted time to think, connect, and learn. That is a reasonable trade-off for stronger school communities overall.", "latency_ms": 22521, "cost": 0.011122, "task_score": 8, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 8, "violates": false, "reasoning": "Clear one-sided argument, three distinct reasons, addresses counterargument, avoids banned phrases, well-written; close to 350 words, minor length imprecision." }, { "judge": "google/gemini-3.1-pro-preview", "score": 10, "violates": false, "reasoning": "The response perfectly follows all instructions, including the exact 350-word count. It provides three distinct reasons, addresses a counter-argument, avoids the banned phrases, and is exceptionally well-written and persuasive." }, { "judge": "x-ai/grok-4.5", "score": 5, "violates": true, "reasoning": "Strong one-sided argument with three clear reasons and counteraddressed; excellent clarity. Exceeds 350 words (431) but otherwise fully meets task." } ] }, { "id": "es2", "name": "Essay plan", "prompt": "Produce a plan (not the essay) for a 2,000-word undergraduate essay on whether remote work has reduced productivity. Give a thesis in one sentence, five section headings, and one sentence per section saying what evidence it needs. Maximum 220 words total.", "output": "**Thesis:** Remote work has not uniformly reduced productivity; its effects depend on job type, management practices, employee circumstances, and how productivity is measured.\n\n1. **Introduction: Defining Remote Work and Productivity** \n Evidence needed: Clear definitions, recent statistics on the growth of remote work, and an explanation of productivity measures such as output, hours worked, quality, and innovation.\n\n2. **Evidence That Remote Work Can Maintain or Increase Productivity** \n Evidence needed: Peer-reviewed studies and organisational data showing reduced commuting time, greater autonomy, improved concentration, or higher output among remote employees.\n\n3. **Evidence That Remote Work Can Reduce Productivity** \n Evidence needed: Research showing communication delays, weaker collaboration, home distractions, burnout, reduced mentoring, or poorer innovation in fully remote settings.\n\n4. **Why Effects Differ Across Workers and Organisations** \n Evidence needed: Comparative evidence by occupation, industry, gender, caring responsibilities, digital access, management quality, and hybrid versus fully remote arrangements.\n\n5. **Conclusion: Evaluating the Overall Impact** \n Evidence needed: A synthesis weighing the strongest evidence, distinguishing short-term output from long-term innovation and employee wellbeing, and explaining why hybrid work may produce the most consistent results.", "latency_ms": 4924, "cost": 0.001997, "task_score": 9, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 5, "violates": true, "reasoning": "Good structure and content, but exceeds 220-word limit (roughly 240+ words), violating explicit constraint." }, { "judge": "google/gemini-3.1-pro-preview", "score": 10, "violates": false, "reasoning": "The response perfectly follows all instructions, providing a clear one-sentence thesis, five section headings, and exactly one sentence of required evidence per section. The word count is well within the 220-word limit." }, { "judge": "x-ai/grok-4.5", "score": 9, "violates": false, "reasoning": "Meets all constraints with clear thesis, five headed sections and evidence sentences; accurate, concise and highly usable plan under 220 words." } ] }, { "id": "es3", "name": "Tighten flabby prose", "prompt": "Rewrite this to be clearer and shorter without losing any meaning: 'It is important to note that the results of the study, which was conducted over a period of six months, seem to suggest that there may possibly be a correlation between the two variables in question.' Return only the rewrite.", "output": "The six-month study suggests a possible correlation between the two variables.", "latency_ms": 1029, "cost": 0.000165, "task_score": 10, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 9, "violates": false, "reasoning": "Concise, accurate, preserves meaning including uncertainty and duration. Minor loss of hedging nuance but well within acceptable rewrite quality." }, { "judge": "google/gemini-3.1-pro-preview", "score": 10, "violates": false, "reasoning": "The response perfectly follows all instructions, providing a clear, concise rewrite that retains the original meaning while eliminating wordiness. It also adheres to the negative constraint by returning only the rewrite." }, { "judge": "x-ai/grok-4.5", "score": 10, "violates": false, "reasoning": "Perfectly preserves full meaning in clearer, shorter form; returns only the rewrite as required." } ] }, { "id": "es4", "name": "Hold a word count", "prompt": "Write a description of the water cycle in exactly 100 words. Count them. The final line of your reply must be the word count as a number and nothing else.", "output": "Sunlight warms oceans, lakes, rivers, and soil, causing liquid water to evaporate into invisible vapor. Plants add vapor through transpiration. As moist air rises and cools, vapor condenses around tiny particles, forming clouds. Winds move these clouds across landscapes. When droplets or ice crystals grow heavy, precipitation falls as rain, snow, sleet, or hail. Water then collects in streams, wetlands, groundwater, glaciers, and oceans. Some soaks into the ground, replenishing aquifers; some flows downhill as runoff. Eventually, much of it returns to larger bodies of water, where solar energy begins the continuous cycle again and sustains Earth's shared freshwater supplies.\n\n100", "latency_ms": 6718, "cost": 0.00331, "task_score": 9, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 9, "violates": false, "reasoning": "Accurate, well-written 100-word description; word count verified correct, final line format followed." }, { "judge": "google/gemini-3.1-pro-preview", "score": 5, "violates": true, "reasoning": "The description itself is 100 words, but the final line adds an extra word ('100'), making the total word count of the response 101 words, violating the exact 100-word constraint." }, { "judge": "x-ai/grok-4.5", "score": 10, "violates": false, "reasoning": "Exact 100-word water cycle description; final line is solely the count. Flawless adherence and accuracy." } ] }, { "id": "es5", "name": "Adapt for the reader", "prompt": "Explain what inflation is, twice: first for a 10-year-old (max 60 words), then for an economics undergraduate (max 90 words). Label each. The second must contain at least one concept absent from the first.", "output": "**For a 10-year-old:** \nInflation means prices rise over time. If a snack costs $1 today but $1.10 next year, your money buys a little less than before. A small amount can be normal, but fast inflation makes everyday things harder to afford.\n\n**For an economics undergraduate:** \nInflation is a sustained increase in the general price level, usually measured by an index such as the Consumer Price Index (CPI). It reduces money’s purchasing power. Inflation can result from excess aggregate demand, rising production costs, or expansionary monetary conditions. Economists distinguish expected from unexpected inflation because expectations affect wages, interest rates, and spending decisions.", "latency_ms": 3755, "cost": 0.001307, "task_score": 10, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 9, "violates": false, "reasoning": "Clear, accurate, meets word limits, labeled properly, second explanation adds CPI/monetary concepts absent from first. Minor stylistic nitpicks only." }, { "judge": "google/gemini-3.1-pro-preview", "score": 10, "violates": false, "reasoning": "The response perfectly follows all instructions, including word counts and audience tailoring. The explanations are accurate, clear, and the second introduces several advanced concepts absent from the first." }, { "judge": "x-ai/grok-4.5", "score": 10, "violates": false, "reasoning": "Perfect adherence to dual explanations, word limits, labels, and novel concepts; accurate and clear." } ] }, { "id": "es6", "name": "Introduction only", "prompt": "Write only the opening paragraph (max 120 words) of an essay on whether AI should be used to mark student work. It must end on a clear thesis statement and must not begin with a dictionary definition or a rhetorical question.", "output": "As artificial intelligence becomes increasingly embedded in schools, automated marking systems are being promoted as a way to reduce teachers’ workloads and provide students with faster feedback. These tools can assess objective answers efficiently and identify patterns in large sets of work, but they may also misinterpret originality, context, and developing ideas. Because assessment can shape students’ confidence, opportunities, and future choices, accuracy alone is not enough. AI should be used to support teachers in marking student work, not to replace their professional judgement.", "latency_ms": 2334, "cost": 0.00067, "task_score": 10, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 8, "violates": false, "reasoning": "Meets constraints, ends on clear thesis, no banned opener, under 120 words, well-written and relevant." }, { "judge": "google/gemini-3.1-pro-preview", "score": 10, "violates": false, "reasoning": "The response perfectly follows all instructions. It provides a concise, engaging opening paragraph under 120 words, avoids banned openings, and concludes with a clear, well-articulated thesis statement." }, { "judge": "x-ai/grok-4.5", "score": 10, "violates": false, "reasoning": "Meets all constraints exactly: under 120 words, clear thesis ending, no definition or question start. Accurate, clear, useful opening paragraph." } ] }, { "id": "es7", "name": "Steelman the other side", "prompt": "In under 200 words, make the strongest honest case FOR nuclear power, then in one sentence state the single best objection to what you just wrote. Do not hedge the main case.", "output": "Nuclear power is essential for a modern clean-energy system because it produces enormous amounts of reliable, zero-carbon electricity on very little land, day and night, regardless of weather. It can replace coal and gas directly while supporting electrification of transport, heating, and industry without depending entirely on vast overbuilds of generation, transmission, storage, and backup. Its fuel is extraordinarily energy-dense, its routine air-pollution and climate impacts are among the lowest of any major energy source, and its waste volume is small, contained, and technically manageable. Countries that build nuclear at scale can secure domestic energy supplies, stabilize grids, preserve industrial capacity, and cut emissions rapidly and permanently. Wind and solar are valuable, but a system built around them is stronger, cleaner, and more resilient with substantial nuclear generation providing firm power.\n\nThe best objection is that new nuclear plants in many democracies are so expensive and slow to build that the same money and time can often reduce more emissions sooner through renewables, grids, efficiency, and storage.", "latency_ms": 5918, "cost": 0.001855, "task_score": 10, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 8, "violates": false, "reasoning": "Strong, honest, unhedged case under 200 words with a single-sentence objection as required; concise and clear, minor stylistic density but meets constraints well." }, { "judge": "google/gemini-3.1-pro-preview", "score": 10, "violates": false, "reasoning": "The response perfectly follows all instructions, including the word count and sentence constraint. The case for nuclear is strong, unhedged, and accurate, and the single-sentence objection is highly effective and relevant." }, { "judge": "x-ai/grok-4.5", "score": 10, "violates": false, "reasoning": "Strong unhedged case meets all constraints exactly; accurate, clear, concise, and useful." } ] }, { "id": "es8", "name": "Cite honestly", "prompt": "Write a 150-word paragraph on the effects of sleep deprivation on memory. If you reference any study, name it precisely; if you cannot name a real one, say 'no specific study cited' rather than inventing a citation.", "output": "Sleep deprivation impairs memory by disrupting attention, encoding, consolidation, and retrieval. When people are tired, they are less able to focus on new information, so fewer details are effectively stored. Insufficient sleep also interferes with hippocampal activity and with the brain’s overnight processing of experiences, weakening both factual and episodic memories. Learning procedures, emotional events, and associations can likewise suffer, although the pattern varies by task and by individual. After prolonged wakefulness, people may feel confident that they remember accurately while making more omissions, false recollections, and source-monitoring errors. Sleep loss can also reduce working memory, making it harder to hold instructions, solve problems, or follow conversations. Repeated short sleep may compound these effects, especially when paired with stress, illness, or irregular schedules. Recovery sleep can improve alertness and some performance, but it may not fully restore memories that were poorly encoded during deprivation. No specific study cited in this response.", "latency_ms": 21048, "cost": 0.007079, "task_score": 5, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 5, "violates": true, "reasoning": "Content accurate, no fabricated citation, but word count is well above the 150-word requirement (looks ~180+ words), violating the explicit constraint." }, { "judge": "google/gemini-3.1-pro-preview", "score": 5, "violates": true, "reasoning": "The response is highly accurate, clear, and useful, but it violates the strict 150-word count constraint (it is 151 words). It correctly includes the required phrase regarding citations." }, { "judge": "x-ai/grok-4.5", "score": 5, "violates": true, "reasoning": "Accurate content on sleep/memory effects; proper no-study note. Exceeds 150 words (~165). Clear, useful paragraph with minor length issue." } ] }, { "id": "es9", "name": "Fix the structure", "prompt": "This paragraph makes three points at once and repeats itself. Rewrite it as three short paragraphs, one point each, no repetition: 'Exercise is good for your body and it also helps your mood, and being active reduces the risk of heart disease, plus people who exercise often sleep better, and of course it is good for the heart.'", "output": "Exercise supports overall physical health.\n\nRegular activity can improve mood and lower the risk of heart disease.\n\nPeople who exercise often sleep better.", "latency_ms": 3357, "cost": 0.000253, "task_score": 5, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 5, "violates": true, "reasoning": "Second paragraph combines two points (mood and heart disease) instead of separating them, violating the 'one point each' structural instruction." }, { "judge": "google/gemini-3.1-pro-preview", "score": 5, "violates": true, "reasoning": "The response fails the 'one point each' constraint because the second paragraph contains two distinct points (mood and heart disease), while the first paragraph is vague." }, { "judge": "x-ai/grok-4.5", "score": 5, "violates": true, "reasoning": "Combines mood + heart risk in one para, violating one-point-each rule; otherwise clear and covers main ideas without much repetition." } ] }, { "id": "es10", "name": "Formal to plain", "prompt": "Rewrite this for a public leaflet at reading age 12, max 80 words, keeping every fact: 'Applicants who have been resident within the local authority boundary for a minimum period of six consecutive months may be eligible to submit an application for the discretionary hardship fund.'", "output": "You may be eligible to apply for the discretionary hardship fund if you have lived within the local authority boundary for at least six months in a row.", "latency_ms": 2305, "cost": 0.000881, "task_score": 9, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 9, "violates": false, "reasoning": "Accurate, retains all facts, simple language, under 80 words, clear and concise." }, { "judge": "google/gemini-3.1-pro-preview", "score": 8, "violates": false, "reasoning": "Meets the word count and retains all facts. The language is simplified, though terms like 'local authority boundary' could be further adapted for a 12-year-old reading level." }, { "judge": "x-ai/grok-4.5", "score": 10, "violates": false, "reasoning": "All facts retained in simple age-12 language under 80 words; clear, concise, fully compliant and useful." } ] }, { "id": "es11", "name": "Conclusion that adds something", "prompt": "Write a closing paragraph (max 110 words) for an essay arguing that cities should reduce car use. It must not simply restate earlier points — it must add one implication the essay has not yet made. Do not start with 'In conclusion'.", "output": "Reducing car use is ultimately about more than easing congestion or cutting emissions: it can redefine who gets to participate fully in city life. When streets are designed for walking, cycling, and reliable public transport, children, older people, disabled residents, and those who cannot afford cars gain greater independence and access to work, services, and community. Choosing fewer cars therefore means choosing a city where mobility is not a privilege tied to vehicle ownership, but a shared public good.", "latency_ms": 2163, "cost": 0.000638, "task_score": 10, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 9, "violates": false, "reasoning": "Concise, under 110 words, avoids banned opener, introduces a fresh equity/accessibility implication not previously stated, clear and professional." }, { "judge": "google/gemini-3.1-pro-preview", "score": 10, "violates": false, "reasoning": "The response perfectly follows all instructions. It is well under the 110-word limit, avoids 'In conclusion', and introduces a strong new implication regarding equity and accessibility. The writing is clear, concise, and highly effective." }, { "judge": "x-ai/grok-4.5", "score": 10, "violates": false, "reasoning": "Meets word limit, adds fresh equity implication, avoids banned start and mere restatement; clear and useful." } ] }, { "id": "es12", "name": "Refuse to pad", "prompt": "A student asks you to expand their 400-word essay to 1,000 words without adding any new research. Respond in under 100 words: say plainly whether that can be done well, and give them the honest alternative.", "output": "It can be stretched to 1,000 words without new research, but it probably will not be better. You risk repetition, vague filler, and weaker argumentation. The honest alternative is to keep it near 400 words if that meets the assignment, or do additional research so you can add meaningful evidence, context, analysis, examples, and counterarguments.", "latency_ms": 2129, "cost": 0.000508, "task_score": 10, "judges": [ { "judge": "anthropic/claude-sonnet-5", "score": 8, "violates": false, "reasoning": "Direct, honest, accurate answer within word limit, gives clear alternatives; concise and useful, minor room for polish but solid." }, { "judge": "google/gemini-3.1-pro-preview", "score": 10, "violates": false, "reasoning": "The response perfectly follows all instructions, staying well under the 100-word limit while clearly addressing whether the expansion can be done well and providing practical, honest alternatives. It is highly useful and concise." }, { "judge": "x-ai/grok-4.5", "score": 10, "violates": false, "reasoning": "Meets word limit; plainly states expansion possible but not well; offers clear honest alternatives. Accurate, useful, concise." } ] } ] }