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Prompts · Writing

AI prompts for writing, tested on four models

10 writing prompts, each run on GPT-6 Luna, Claude Opus 5.5, Claude Sonnet 5.5, and Gemini 3.1 Pro (preview): 35 of 40 replies passed our checks. Below, each prompt with its replies side by side: whether each passed, what it counted as on Pro and what it cost to run. 3 of the 10 prompts split the models.

A real reply from these prompts' runs

GPT-6 Luna

Rewrite this paragraph to show the feeling through action and detail instead of naming it. Keep it under 120 words. Mara was nervous about the interview. She was very anxious and kept worrying that she would say the wrong thing. She felt scared as she waited outside the office.

GPT-6 Luna · passed our check · September 28, 2026

Mara smoothed the same crease in her blouse, then checked the time again. Through the office door, a phone rang. She rehearsed her opening line under her breath, stumbled over one word, and started again. When the receptionist called her name, Mara’s fingers tightened around her folder. She stood, took a quick breath, and stepped inside.

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Test runs checked . Updated .

Short answer

Claude Opus 5.5 passed the most of these prompts: 10 of 10, in our runs on September 28, 2026. The clearest split: “Continue a story in the same voice”, passed by GPT-6 Luna, Claude Opus 5.5, and Gemini 3.1 Pro and failed by Claude Sonnet 5.5.

What these prompts are for

Prompts for writers working on their craft: show, don't tell; continue a story in the same voice; outline a blog post; cut a text to half its length; find the clichés; write dialogue with subtext; headlines with a standfirst; vary sentence rhythm; a limerick with the right rhyme; and an editor's notes.

Craft rules are easy to state and hard to keep for a whole reply, which is what these runs show: whether the word never appears, the tense never slips and the count comes out right.

The prompts at a glance

Every prompt on every model, as our check scored the reply. Tap a prompt to jump to it and read the replies.

Every prompt on every model: passed or failed
PromptGPT-6 LunaClaude Opus 5.5Claude Sonnet 5.5Gemini 3.1 Pro
Show, don't tellPassedPassedPassedPassed
Continue a story in the same voicePassedPassedFailedPassed
A blog post outlinePassedPassedPassedPassed
Cut a text to half its lengthPassedPassedPassedPassed
Find the clichésPassedPassedPassedPassed
Dialogue with subtextPassedPassedPassedPassed
Headlines with a standfirstPassedPassedPassedPassed
Vary the rhythm of your sentencesFailedPassedPassedPassed
A limerick with the right rhymeFailedPassedFailedFailed
Editor's notes, not a rewritePassedPassedPassedPassed
Passed8 of 1010 of 108 of 109 of 10
Each model on these prompts
ModelPassedEach reply on ProCost per replyTime per reply
Claude Opus 5.5Anthropic10 of 101 message on Pro$0.01065.5 s
Gemini 3.1 Pro (preview)Google9 of 101 message on Pro$0.00608.5 s
GPT-6 LunaOpenAI8 of 101 message on Pro$0.00012.4 s
Claude Sonnet 5.5Anthropic8 of 101 message on Pro$0.00413.4 s
Passed: of the prompts each model answered, how many replies passed their check. Each reply on Pro: what one of these messages counts as on llmwise's Pro plan. Cost: what OpenRouter charged us per reply, on average; in llmwise you pay per message, not per token.

Where the models split

The same prompt, a pass on one model and a fail on another: what failed, in the check's words and the grader's.

  • Continue a story in the same voice

    Passed: GPT-6 Luna, Claude Opus 5.5, and Gemini 3.1 Pro. Failed: Claude Sonnet 5.5.

    • Why Claude Sonnet 5.5 failed: Graded 5.0 of 5 on average (lowest 5); but 206 words, over the 200 allowed.

      The grader: “The reply keeps first person and past tense throughout, builds directly on the letter and the grandmother's misspelling, and ends on an unresolved hook, though at about 215 words it slightly overshoots the requested length.”
  • Vary the rhythm of your sentences

    Passed: Claude Opus 5.5, Claude Sonnet 5.5, and Gemini 3.1 Pro. Failed: GPT-6 Luna.

    • Why GPT-6 Luna failed: Graded 3.7 of 5 on average (lowest 2).

      The grader: “The reply keeps every event and flows better, and 'The storm struck at night.' is under 6 words, but no sentence goes over 25 words (the longest is 7), so the length requirement is only half met.”
  • A limerick with the right rhyme

    Passed: Claude Opus 5.5. Failed: GPT-6 Luna, Claude Sonnet 5.5, and Gemini 3.1 Pro.

    Only Claude Opus 5.5's limerick passed. GPT-6 Luna forced a rhyme ("flagon" with "lag on"), Gemini 3.1 Pro's rhymed but ended without a punchline, and Claude Sonnet 5.5 left a flawed first draft in its reply before the final one.

    • Why GPT-6 Luna failed: Graded 3.3 of 5 on average (lowest 3).

      The grader: “The AABBA scheme is there but leans on the forced rhymes "flagon" and "lag on," and the meter wobbles in lines 1 and 2. The last line lands a mild joke about hiding among dust bunnies, but the awkward phrasing blunts the punchline.”
    • Why Claude Sonnet 5.5 failed: Graded 3.7 of 5 on average (lowest 3).

      The grader: “The final revised limerick rhymes AABBA correctly (spry/cry/sigh, hissed/missed) and scans mostly well; the punchline is mild, and the flawed first draft left in the reply is a small flaw.”
    • Why Gemini 3.1 Pro failed: Graded 3.7 of 5 on average (lowest 2).

      The grader: “The rhyme scheme is exact (beast/least/ceased, hall/wall) and the anapestic bounce is mostly there, but the last line only describes the monster stopping and never lands a punchline.”

The 10 prompts, with every reply

Copy a prompt, replace the parts in [brackets] with your own, and send it to any model. Below each, the replies we got with our example filled in.

1. Show, don't tell

Everyday · 4 of 4 passed

Naming the technique gets the technique; the test is whether the words nervous, anxious and scared disappear.

The prompt: replace the parts in [brackets]

Rewrite this paragraph to show the feeling through action and detail instead of naming it. Keep it under 120 words. [paste your paragraph]

Open in llmwise
How we filled it in and checked the replies
Rewrite this paragraph to show the feeling through action and detail instead of naming it. Keep it under 120 words.

Mara was nervous about the interview. She was very anxious and kept worrying that she would say the wrong thing. She felt scared as she waited outside the office.
  • Shows: Conveys nerves through action and physical detail.
  • No naming: Doesn't name the emotion outright.
  • Vivid: Specific, fresh details.
  • Automatic rules: at most 120 words; doesn't use “nervous”; doesn't use “anxious”; doesn't use “scared”.
  • GPT-6 Luna

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    Mara smoothed the same crease in her blouse, then checked the time again. Through the office door, a phone rang. She rehearsed her opening line under her breath, stumbled over one word, and started again. When the receptionist called her name, Mara’s fingers tightened around her folder. She stood, took a quick breath, and stepped inside.

    1 message on Pro · under $0.0001 to run · 1.8 s · 76 tokens out

  • Claude Opus 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    Mara smoothed her skirt for the third time, then pressed her palms flat against her knees to stop them bouncing. The hallway clock ticked louder than it had any right to. She ran through her answers under her breath, *I'm a strong collaborator, I'm a strong collaborator*, until the words stopped sounding like words at all. Her mouth had gone dry, and she couldn't remember whether she'd brought the extra copy of her résumé. She checked her folder. It was there. She checked again. When the office door clicked open, she jumped, knocking her water bottle to the floor, and felt heat climb from her collar to her ears.

    1 message on Pro · $0.0066 to run · 4.0 s · 221 tokens out

  • Claude Sonnet 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    Mara pressed her thumbnail into the pad of her finger, over and over, until a small crescent bloomed red. She had rehearsed her answer to "Tell me about yourself" in the elevator, then again in the hallway, and now the words felt like pebbles in her mouth. Her portfolio sat on her knees, and she straightened its edges for the third time. Behind the frosted glass, a chair scraped. She stopped breathing. Her palms left damp ghosts on the leather cover, and she wiped them on her skirt, then checked her phone to see how many minutes were left. Two. It felt like ten.

    1 message on Pro · $0.0031 to run · 3.1 s · 198 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    Mara sat outside the heavy oak door, her heel tapping a relentless rhythm against the linoleum. She smoothed her skirt for the fifth time, though the fabric was perfectly flat. Her damp hands gripped a increasingly crumpled copy of her resume. Staring at the frosted glass of the office window, she silently mouthed her opening introduction, but the words tangled on her tongue. Whenever a phone rang inside, she swallowed hard, trying to clear the dry lump in her throat, and her breath hitched as the doorknob finally began to turn.

    1 message on Pro · $0.0038 to run · 6.1 s · 556 tokens out

2. Continue a story in the same voice

Everyday · 3 of 4 passed

Naming the person and tense keeps the continuation from drifting, which is the most common way it goes wrong.

The prompt: replace the parts in [brackets]

Continue this story for 150 to 200 words in the same voice: first person, past tense. [paste your opening]

Open in llmwise
How we filled it in and checked the replies
Continue this story for 150 to 200 words in the same voice: first person, past tense.

The letter had been under the doormat for a week before I noticed it. My name was spelled wrong, the way only my grandmother ever spelled it, and she had been dead for six years.
  • Same voice: Stays in first person and past tense throughout.
  • Follows on: Picks up the letter and the grandmother.
  • Craft: Builds curiosity without resolving everything.
  • Automatic rules: 150 to 200 words.
  • GPT-6 Luna

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    I carried it inside and set it on the kitchen table. For a long time, I only looked at the envelope. The handwriting leaned downhill, each letter small and cramped, just like the recipe cards she used to leave in my lunchbox.
    
    Inside was a single sheet of paper.
    
    *You left the blue tin in the attic.*
    
    I read it twice. Then I laughed, though nothing about the note was funny. The blue tin had been missing since I was twelve. Grandma used to keep buttons in it, and once, when I asked what else she hid there, she told me, “Things you’ll understand when you’re older.”
    
    I went upstairs.
    
    The attic smelled of dust and wet cedar. I found the tin behind a box of Christmas decorations, tucked beneath a loose floorboard. Inside, there were no buttons. There was a photograph of my mother as a girl, standing beside a woman I didn’t recognize, and a second envelope with my name spelled wrong.
    
    This time, the letter began, *I’m sorry I made you promise not to ask.*
    
    I sat down among the boxes. Outside, the front door clicked softly, as if someone had just stepped onto the porch.

    1 message on Pro · $0.0001 to run · 3.9 s · 245 tokens out

  • Claude Opus 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    I stood in the hallway for a long time, turning it over in my hands. The envelope had gone soft with damp, and the ink had bled a little at the edges, but the handwriting was unmistakable: the looping capitals, the way she crossed her sevens like a European, the extra *e* she always added to the end of my name as if I were someone grander than I was.
    
    There was no stamp. No return address. Just *Annie*, pressed hard into the paper, the pen nearly tearing through.
    
    I told myself there were explanations. A cousin playing a cruel joke. An old letter found in a drawer and delivered by some well-meaning stranger. But the paper was new, bright white beneath the grime, and it smelled faintly of her lavender talc, the kind they'd stopped making years before she died.
    
    I didn't open it that night. I set it on the kitchen table and made tea I didn't drink, and I watched it the way you'd watch a sleeping dog you weren't sure was friendly.
    
    Sometime after midnight, I heard the mail slot creak open. Then shut.

    1 message on Pro · $0.0119 to run · 7.4 s · 488 tokens out

  • Claude Sonnet 5.5

    Failed

    Graded 5.0 of 5 on average (lowest 5); but 206 words, over the 200 allowed.

    I carried it inside and set it on the kitchen table, where it sat through dinner like an unwelcome guest. The envelope was soft with damp, the stamp a design I hadn't seen since childhood. No return address. Just my name, *Marrian* instead of *Marian*, with that extra looping *r* she always insisted was more elegant.
    
    I opened it after midnight, when the house had gone quiet enough to make me brave.
    
    Inside was a single sheet, folded in thirds. *Dear Marrian,* it began. *If you are reading this, the house has finally sold, and you have stopped looking for the key.*
    
    I stopped breathing. I had been looking for that key for six years, ever since the lawyer handed me the deed and an empty lockbox. I had never told anyone.
    
    The letter went on in her cramped, slanting hand. *It is not in the house. It never was. Go to the pear tree at the bottom of the garden, the one your grandfather planted the year the war ended. Dig where the roots split. Bring a spade, and bring a sweater. You will be out there a while.*
    
    I looked at the window. Outside, the dark garden waited, and somewhere in it, a tree.

    1 message on Pro · $0.0049 to run · 5.0 s · 378 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    I picked it up, the thick parchment stiff with cold and damp. "Elysabeth," it read, with that unmistakable, loopy 'y'. My heart hammered against my ribs, a cold dread pooling in my stomach. I carried it inside, dropping my keys on the counter, and stared at the envelope under the harsh kitchen light. There was no stamp, no return address, just my misspelled name in faded blue ink. 
    
    I brought it to my nose, catching a faint, impossible scent of lavender and stale peppermint—her signature smell. With trembling fingers, I tore the flap. Inside was a single, brittle sheet of paper. The handwriting was frantic, completely unlike her usual careful script, but the words were undeniably hers. 
    
    *They know about the summer of '98. Don't go back to the lake.* 
    
    I slumped into the nearest chair, the silence of my apartment suddenly deafening. I hadn't thought about that summer, or the rusted locket we buried by the docks, since the day of her funeral. But someone else had found out our secret. And somehow, impossibly, she was trying to warn me from beyond the grave.

    1 message on Pro · $0.0120 to run · 15.5 s · 1,934 tokens out

3. A blog post outline

Everyday · 4 of 4 passed

An audience with a worry shapes the outline around it; the fixed parts make it a plan you can write from.

The prompt: replace the parts in [brackets]

Outline a blog post on [your topic] for [your audience]: a working title, a hook, four sections with a one-line summary each, and a conclusion.

Open in llmwise
How we filled it in and checked the replies
Outline a blog post on how to start running after 40 for people who have never run and are worried about their knees: a working title, a hook, four sections with a one-line summary each, and a conclusion.
  • Complete: Title, hook, four sections and a conclusion.
  • For the audience: Addresses beginners over 40 and their knees.
  • Sound: Sensible, safe advice.
  • GPT-6 Luna

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    ## Working title
    **How to Start Running After 40—Even If You’re Worried About Your Knees**
    
    ## Hook
    If you’ve never run before, the idea of pounding the pavement can feel risky—but a gradual, well-paced start can make running more approachable than you think.
    
    ## Sections
    1. **Check in with your body first** — Explain when to consult a healthcare professional and how to account for existing pain, injuries, or health conditions.
    2. **Start with walking, then add short run intervals** — Introduce a beginner-friendly walk-run approach that builds gradually without demanding long or fast runs.
    3. **Build a routine that supports your joints** — Cover comfortable shoes, rest days, strength work, and choosing forgiving, predictable routes.
    4. **Use discomfort as information, not a challenge** — Help readers distinguish ordinary effort from pain that calls for stopping, resting, or getting medical advice.
    
    ## Conclusion
    You don’t need to prove anything with speed or distance: start small, progress patiently, and let consistency—not fear or pressure—guide your first steps.

    1 message on Pro · $0.0001 to run · 3.6 s · 225 tokens out

  • Claude Opus 5.5

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    **Working Title:** *Your Knees Aren't the Problem: A Beginner's Guide to Running After 40*
    
    **Hook:**
    Research shows recreational runners tend to have *healthier* knees than people who don't run at all. If fear of joint damage has kept you on the sidelines, here's how to start safely, even if you've never run a mile in your life.
    
    **Section 1: The Truth About Running and Your Knees**
    What the research actually says about running, cartilage, and arthritis risk, and why moderate running can strengthen joints rather than wear them out.
    
    **Section 2: Before Your First Step: Prep and Green Lights**
    When to check with a doctor, how to choose supportive shoes, and why a few weeks of brisk walking lays the foundation.
    
    **Section 3: The Walk-Run Method: Start Slower Than You Think**
    A simple 8-week plan that alternates short running intervals with walking so your joints, tendons, and heart adapt together.
    
    **Section 4: Build Knee-Proof Legs With Strength and Recovery**
    Key exercises (squats, lunges, glute bridges, calf raises), the importance of rest days, and how to tell normal soreness from warning-sign pain.
    
    **Conclusion:**
    Starting after 40 isn't a disadvantage. Patience and consistency are your biggest assets. Go slow, listen to your body, and focus on showing up rather than speed. Your first goal is simply to enjoy the run, and your knees will likely thank you for it.

    1 message on Pro · $0.0119 to run · 6.0 s · 491 tokens out

  • Claude Sonnet 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    **Working Title:** Never Too Late, Never Too Soon: A Knee-Friendly Guide to Starting Running After 40
    
    **Hook:** You've heard the warning a hundred times: "Running ruins your knees." But research tells a different story. Recreational runners actually have lower rates of knee osteoarthritis than sedentary people. The real risk to your knees isn't running. It's starting too fast, in the wrong shoes, with no plan. Here's how to begin the smart way.
    
    **Section 1: Debunking the Knee Myth (and Knowing Your Starting Point)**
    Running doesn't inherently damage healthy knees, and a quick check-in with your doctor plus an honest look at your current fitness sets you up for a safe start.
    
    **Section 2: Build the Foundation Before You Run**
    Two to three weeks of brisk walking and simple strength work (glute bridges, step-ups, calf raises, squats) prepares the muscles and tendons that protect your knees.
    
    **Section 3: The Walk-Run Method for True Beginners**
    Alternating short jogging intervals with walking (for example, 1 minute run, 2 minutes walk) over 8-10 weeks lets your joints and connective tissue adapt gradually without overload.
    
    **Section 4: Gear, Surfaces, and Smart Recovery**
    Properly fitted shoes, softer surfaces when possible, rest days between runs, and attention to the difference between normal soreness and warning-sign pain keep you running long-term.
    
    **Conclusion:** Starting after 40 isn't a disadvantage. It's an opportunity to build a sustainable habit with patience and good habits from day one. Take it slow, listen to your body, and celebrate small wins. Your first goal isn't a race, it's simply showing up consistently. Lace up, head out the door, and let your first walk-run be the start.

    1 message on Pro · $0.0072 to run · 5.8 s · 612 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    **Working Title:** Running After 40: How to Start (Without Wrecking Your Knees)
    
    **Hook:** You want to start running, but every time you think about lacing up your shoes, you hear the same warning: "Running will ruin your knees." Here's the good news—with the right approach, you can safely build a running habit in your 40s that actually *strengthens* your joints rather than destroying them.
    
    **Section 1: Start from the Ground Up (Footwear Matters)**
    *Summary:* Invest in proper running shoes fitted by a professional to ensure maximum impact absorption and alignment for your joints.
    
    **Section 2: The Magic of the Walk-Run Method**
    *Summary:* Ease into the sport using run-walk intervals to gradually build cardiovascular endurance and give your tendons time to adapt without overloading your knees.
    
    **Section 3: Armor Your Joints with Strength Training**
    *Summary:* Incorporate simple strength exercises targeting your glutes, hips, and core to stabilize your stride and take the physical stress off your knees.
    
    **Section 4: Listen to Your Body and Prioritize Recovery**
    *Summary:* Respect your rest days and learn to distinguish between normal, healthy muscle soreness and sharp joint pain that requires a break.
    
    **Conclusion:** Starting a running routine after 40 isn't about setting speed records; it's about investing in your long-term health, mobility, and mental well-being. Take it slow, trust the process, and enjoy the journey to a stronger, more resilient version of yourself.

    1 message on Pro · $0.0057 to run · 8.8 s · 885 tokens out

4. Cut a text to half its length

Hard · 4 of 4 passed

A word count and "every fact" make cutting a real edit: the padding goes, the grant, the greenhouse and the names stay.

The prompt: replace the parts in [brackets]

Cut this text to at most [word limit] words, keeping every fact. [paste your text]

Open in llmwise
How we filled it in and checked the replies
Cut this text to at most 70 words, keeping every fact.

We are absolutely thrilled and delighted to share with all of you the wonderful news that our community garden, which has been lovingly tended by volunteers for many years now, has been awarded a grant of £5,000 by the Harbour Trust. This very generous funding will allow us to build a brand-new greenhouse, which we hope will be ready by the spring, and also to run a series of six free workshops for local families on growing vegetables. We would like to say a huge thank you to everyone who helped with our application, especially Maya and Tom, who worked incredibly hard on it.
  • Every fact: £5,000 from the Harbour Trust, a greenhouse by spring, six free workshops for families, thanks to Maya and Tom.
  • Tight: The padding is gone.
  • Natural: Still reads warmly.
  • Automatic rules: at most 70 words; includes “5,000”; includes “Harbour Trust”; includes “six”; includes “Maya”; includes “Tom”.
  • GPT-6 Luna

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    Our community garden, tended by volunteers for many years, has received a £5,000 grant from the Harbour Trust. The funding will pay for a new greenhouse, planned for completion by spring, and six free vegetable-growing workshops for local families. Thank you to everyone who helped with the application, especially Maya and Tom for their hard work.

    1 message on Pro · under $0.0001 to run · 1.2 s · 72 tokens out

  • Claude Opus 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    We're thrilled to announce that our community garden, tended by volunteers for many years, has been awarded a £5,000 grant by the Harbour Trust. The funding will build a new greenhouse, hopefully ready by spring, and run six free vegetable-growing workshops for local families. Huge thanks to everyone who helped with our application, especially Maya and Tom, who worked incredibly hard on it.
    
    *(63 words)*

    1 message on Pro · $0.0163 to run · 5.5 s · 651 tokens out

  • Claude Sonnet 5.5

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    We're delighted to announce that our community garden, tended by volunteers for many years, has received a £5,000 grant from the Harbour Trust. The funding will pay for a new greenhouse, hopefully ready by spring, and six free vegetable-growing workshops for local families. Huge thanks to everyone who helped with the application, especially Maya and Tom, who worked incredibly hard on it.
    
    (58 words)

    1 message on Pro · $0.0030 to run · 1.5 s · 134 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 4.3 of 5 on average (lowest 4).

    Our community garden, tended by volunteers for many years, has won a £5,000 Harbour Trust grant. These funds will build a new greenhouse, ready by spring, and run six free vegetable-growing workshops for local families. Thank you to everyone who helped with the application, especially Maya and Tom for their hard work.

    1 message on Pro · $0.0064 to run · 7.7 s · 984 tokens out

5. Find the clichés

Everyday · 4 of 4 passed

Listing the clichés, rather than rewriting, lets you fix them in your own voice.

The prompt: replace the parts in [brackets]

List every cliché in this paragraph, quoting it, and suggest a plainer phrase for each. Don't rewrite the paragraph. [paste your paragraph]

Open in llmwise
How we filled it in and checked the replies
List every cliché in this paragraph, quoting it, and suggest a plainer phrase for each. Don't rewrite the paragraph.

At the end of the day, our new app is a game changer. We thought outside the box to create something that hits the ground running, and we left no stone unturned in testing it. It's the best thing since sliced bread for busy parents.
  • Finds them: Finds at the end of the day, game changer, thought outside the box, hits the ground running, left no stone unturned, best thing since sliced bread.
  • Plainer phrases: Suggests a plainer phrase for each.
  • No rewrite: Doesn't rewrite the paragraph.
  • GPT-6 Luna

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    - “At the end of the day” → “Ultimately”
    - “a game changer” → “a major improvement”
    - “thought outside the box” → “used creative thinking”
    - “hits the ground running” → “works well from the start”
    - “left no stone unturned” → “tested it thoroughly”
    - “the best thing since sliced bread” → “a very useful product”

    1 message on Pro · under $0.0001 to run · 1.5 s · 87 tokens out

  • Claude Opus 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    1. **"At the end of the day"**: "Ultimately," or simply delete it.
    2. **"a game changer"**: "a major improvement" or "changes how parents manage their schedules" (name the actual change).
    3. **"thought outside the box"**: "tried a new approach" or "took an unusual approach."
    4. **"hits the ground running"**: "works well from the first use" or "is useful immediately."
    5. **"left no stone unturned"**: "tested it thoroughly."
    6. **"the best thing since sliced bread"**: "extremely useful" or "one of the most helpful tools available."

    1 message on Pro · $0.0084 to run · 3.3 s · 279 tokens out

  • Claude Sonnet 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    1. **"At the end of the day"** → "Ultimately," or just cut it.
    2. **"a game changer"** → "a significant improvement" or, better, say what it actually changes (e.g., "saves parents an hour a day").
    3. **"thought outside the box"** → "took a fresh approach" or "tried something different."
    4. **"hits the ground running"** → "works well from the first use" or "is easy to start using."
    5. **"left no stone unturned"** → "tested it thoroughly" or "tested every feature."
    6. **"the best thing since sliced bread"** → "extremely useful" or, more specifically, name the benefit for busy parents.

    1 message on Pro · $0.0035 to run · 2.4 s · 212 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    Here are the clichés from the paragraph and suggested plainer phrases for each:
    
    *   **"At the end of the day"** – Ultimately / In the end
    *   **"game changer"** – Major improvement / Significant innovation
    *   **"thought outside the box"** – Thought creatively / Took a new approach
    *   **"hits the ground running"** – Works immediately / Is immediately effective
    *   **"left no stone unturned"** – Tested thoroughly / Checked completely
    *   **"best thing since sliced bread"** – Highly useful / Excellent

    1 message on Pro · $0.0033 to run · 6.0 s · 482 tokens out

6. Dialogue with subtext

Hard · 4 of 4 passed

Subtext is a craft rule a model has to hold for every line: the check is whether the sale is ever said out loud.

The prompt: replace the parts in [brackets]

Write 10 to 14 lines of dialogue between [two characters] arguing about [what they're really arguing about], without either of them ever mentioning it directly.

Open in llmwise
How we filled it in and checked the replies
Write 10 to 14 lines of dialogue between two adult siblings arguing about whether to sell their late mother's house, without either of them ever mentioning it directly.
  • Subtext: The real subject is clear without either sibling naming it.
  • Two voices: The siblings sound different.
  • Length: 10 to 14 lines of dialogue.
  • GPT-6 Luna

    Passed

    Graded 4.3 of 5 on average (lowest 4).

    “You’ve already called the realtor?”
    “She called me. I didn’t say yes.”
    “You asked what the place would fetch. That’s practically yes.”
    “I asked because the roof is sagging and the taxes don’t care that we’re grieving.”
    “Every room still sounds like her.”
    “And every bill still arrives with our names on it.”
    “We could fix the roof.”
    “With what money, Daniel?”
    “We’d figure it out. We always did.”
    “She did. We watched.”
    “So you want strangers picking through her cupboards?”
    “I want us to stop pretending we can keep everything exactly as she left it.”
    “I can’t be the one who lets it go.”
    “Then don’t make me be the one who stays.”
    

    1 message on Pro · $0.0001 to run · 2.8 s · 148 tokens out

  • Claude Opus 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    **CLAIRE:** The realtor's coming Thursday. I told her ten o'clock.
    
    **DANNY:** You told her. Great. Did you also tell her about the pencil marks on the pantry door?
    
    **CLAIRE:** Danny, nobody's paying extra for pencil marks.
    
    **DANNY:** That's not what I asked.
    
    **CLAIRE:** The roof needs eight thousand dollars. The furnace is older than you. Who's paying for that, you?
    
    **DANNY:** I could move back. Fix it up slowly, the way she always meant to.
    
    **CLAIRE:** You haven't kept a houseplant alive since college.
    
    **DANNY:** She kept that fern going for thirty years. Maybe it's learnable.
    
    **CLAIRE:** I can't keep driving four hours to water ferns and check the mail for someone who isn't getting mail anymore.
    
    **DANNY:** Then don't. I'm not asking you to.
    
    **CLAIRE:** You're asking me to pretend nothing ends.
    
    **DANNY:** No. I'm asking for one more Christmas before strangers paint over our heights.

    1 message on Pro · $0.0116 to run · 7.8 s · 475 tokens out

  • Claude Sonnet 5.5

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    **DANA:** You've been here three days and you haven't opened the hall closet once.
    
    **MARCUS:** I've been busy. The realtor's coming Thursday, and someone has to deal with the gutters.
    
    **DANA:** Right. Because the gutters are what she'd want us worrying about.
    
    **MARCUS:** She'd want us to be practical. She was the most practical person I ever knew.
    
    **DANA:** She kept every one of your report cards, Marcus. In a shoebox. Labeled.
    
    **MARCUS:** And I'm supposed to keep paying property tax on a shoebox?
    
    **DANA:** I'm supposed to drive past a stranger's minivan in that driveway, is that it?
    
    **MARCUS:** You live four hours away. You drive past nothing.
    
    **DANA:** I planted that maple with her. I was nine. You were at a friend's.
    
    **MARCUS:** I'm always at a friend's in your version. Somebody had to earn money that year.
    
    **DANA:** Nobody's asking you to be the villain. I'm asking you to wait until spring.
    
    **MARCUS:** Spring, then summer, then you'll need one more autumn. I know how this goes.
    
    **DANA:** Then tell me what you want, instead of what it costs.
    
    **MARCUS:** I want to stop hearing her voice every time the stairs creak.

    1 message on Pro · $0.0054 to run · 5.2 s · 438 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 4.3 of 5 on average (lowest 4).

    "We can't just hand the keys over to a stranger, Mark."
    
    "It’s been sitting empty for six months, Sarah. The dust is literally settling."
    
    "She loved the rose garden out back. She planted every single bush."
    
    "And the roof is leaking in three places. I'm not paying for those repairs."
    
    "It’s the only thing we have left of her!"
    
    "We have pictures. We have memories. We don't need a massive tax bill to remember her by."
    
    "You always were so quick to just let go of the past."
    
    "I'm being practical. The market is peaking right now, and the broker already called twice."
    
    "Tell him to lose our number. I'll cover the taxes myself."
    
    "With what money? It's too big for you, and it's dragging us both down."
    
    "I'm not signing the papers. Period."
    
    "Fine, but when the pipes freeze this winter, don't call me."

    1 message on Pro · $0.0087 to run · 12.4 s · 1,384 tokens out

7. Headlines with a standfirst

Everyday · 4 of 4 passed

A word limit per headline and a standfirst give you options in the format editors use.

The prompt: replace the parts in [brackets]

Suggest 3 headlines for this article, each under 10 words, with a one-sentence standfirst under each. [summarize your article]

Open in llmwise
How we filled it in and checked the replies
Suggest 3 headlines for this article, each under 10 words, with a one-sentence standfirst under each.

A study of 2,000 commuters in five cities found that people who cycled to work took on average two fewer sick days a year than people who drove, even after accounting for age and income.
  • Under 10 words: Every headline is under 10 words.
  • Accurate: No claim beyond the study (commuters, two fewer sick days, five cities).
  • Varied: Three different approaches.
  • GPT-6 Luna

    Passed

    Graded 4.3 of 5 on average (lowest 3).

    1. **Cyclists Take Fewer Sick Days Than Drivers**  
       A study of 2,000 commuters across five cities found that people who cycled to work took two fewer sick days a year on average.
    
    2. **Commuting by Bike Linked to Less Sick Leave**  
       Even after accounting for age and income, cyclists took fewer days off sick than drivers.
    
    3. **Bike Commuters Miss Fewer Days of Work**  
       Researchers found that people who cycled to work averaged two fewer sick days annually than those who drove.

    1 message on Pro · under $0.0001 to run · 1.9 s · 117 tokens out

  • Claude Opus 5.5

    Passed

    Graded 4.3 of 5 on average (lowest 3).

    **1. Cycling Commuters Take Fewer Sick Days, Study Finds**
    A survey of 2,000 workers across five cities shows bike commuters miss two fewer days a year than drivers.
    
    **2. Pedal Power: The Commute That Keeps You Well**
    Swapping the car for a bike could mean two extra healthy workdays annually, even after accounting for age and income.
    
    **3. Want Fewer Sick Days? Try Biking to Work**
    New research links cycling to the office with better attendance than driving.

    1 message on Pro · $0.0056 to run · 2.9 s · 172 tokens out

  • Claude Sonnet 5.5

    Passed

    Graded 4.3 of 5 on average (lowest 3).

    **1. Cyclists Take Fewer Sick Days Than Drivers**
    A study of 2,000 commuters in five cities found cycling to work is linked to two fewer sick days a year, even after accounting for age and income.
    
    **2. Pedal to Work, Stay Off the Sick List**
    Commuters who cycle miss two fewer days annually than those who drive, according to research across five cities.
    
    **3. Two Fewer Sick Days: The Cycling Commute Effect**
    New research on 2,000 commuters suggests choosing a bike over a car may pay off in better attendance and health.

    1 message on Pro · $0.0030 to run · 2.1 s · 193 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 4.0 of 5 on average (lowest 3).

    **1. Cycle to Work, Call in Sick Less Often**
    A new five-city study reveals that commuting by bike can save you an average of two sick days a year compared to driving.
    
    **2. Biking Commuters Take Fewer Sick Days Than Drivers**
    Researchers found that cycling to work is linked to taking two fewer sick days annually, regardless of age or income.
    
    **3. Ditch the Car for a Healthier Commute**
    A survey of 2,000 commuters shows that those who pedal to work enjoy better health and take fewer sick days than those behind the wheel.

    1 message on Pro · $0.0040 to run · 5.5 s · 602 tokens out

8. Vary the rhythm of your sentences

Everyday · 3 of 4 passed

Concrete targets for sentence length are how editors teach rhythm; the grader checks both.

The prompt: replace the parts in [brackets]

Rewrite this paragraph so the sentence lengths vary: at least one sentence under 6 words and one over 25. Keep the meaning. [paste your paragraph]

Open in llmwise
How we filled it in and checked the replies
Rewrite this paragraph so the sentence lengths vary: at least one sentence under 6 words and one over 25. Keep the meaning.

The storm arrived at night. The wind was very strong. The trees moved a lot. The power went out at ten. We lit some candles. We waited for the morning.
  • Short and long: At least one sentence under 6 words and one over 25.
  • Same meaning: Keeps every event.
  • Reads: Flows better than the original.
  • GPT-6 Luna

    Failed

    Graded 3.7 of 5 on average (lowest 2).

    The storm struck at night. Fierce winds made the trees sway wildly. At ten, the power went out. We lit candles and waited for morning.

    1 message on Pro · under $0.0001 to run · 0.9 s · 35 tokens out

  • Claude Opus 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    The storm arrived at night. Blowing with tremendous force, the wind tore through the neighborhood and sent the trees swaying and thrashing in every direction, until the power finally went out at ten o'clock. We lit some candles. Then we waited for morning.

    1 message on Pro · $0.0110 to run · 4.7 s · 437 tokens out

  • Claude Sonnet 5.5

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    The storm arrived at night. Winds howled so fiercely that the trees thrashed and bent in every direction, and when the power finally went out at ten, we lit a few candles and settled in to wait for morning. Nothing else to do.

    1 message on Pro · $0.0019 to run · 1.5 s · 75 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 4.0 of 5 on average (lowest 3).

    The storm arrived at night. Driven by fierce, relentless winds that caused the outside trees to bend and thrash wildly against the house, the power completely failed at ten o'clock, forcing us to gather around a few flickering candles and patiently wait for the safety of morning.

    1 message on Pro · $0.0072 to run · 9.7 s · 1,123 tokens out

9. A limerick with the right rhyme

Everyday · 1 of 4 passed

A fixed form is a small test of craft: the rhyme scheme and the bounce of the meter.

The prompt: replace the parts in [brackets]

Write a limerick about [your subject]: five lines, rhyming AABBA.

Open in llmwise
How we filled it in and checked the replies
Write a limerick about a cat who thinks the vacuum cleaner is a dragon: five lines, rhyming AABBA.
  • AABBA rhyme: Lines 1, 2 and 5 rhyme, and lines 3 and 4 rhyme.
  • Rhythm: Has a limerick's bouncing rhythm.
  • Funny: Lands a joke on the last line.
  • GPT-6 Luna

    Failed

    Graded 3.3 of 5 on average (lowest 3).

    A cat saw a vacuum and cried, “Dragon!”  
    Then puffed up his fur, fierce and flagon  
    He hissed at its roar,  
    Then leapt for the door,  
    And hid where the dust bunnies lag on.

    1 message on Pro · under $0.0001 to run · 1.9 s · 54 tokens out

  • Claude Opus 5.5

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    A tabby named Tom, bold and brave,
    Saw a beast that would roar and would rave.
    With its hose-neck and wheeze,
    He cried, "Dragon! Oh, please!"
    Then he fled to the couch like a cave.

    1 message on Pro · $0.0036 to run · 3.1 s · 80 tokens out

  • Claude Sonnet 5.5

    Failed

    Graded 3.7 of 5 on average (lowest 3).

    A tabby named Sir Reginald Fleece
    Saw the vacuum and shrieked, "Dragon! Beast!"
    He arched up his spine,
    Gave a hiss, drew a line,
    Then fled 'neath the couch until peace.
    
    Let me tighten that up, since the rhymes were off:
    
    A tabby named Duke, brave and spry,
    Saw the vacuum and gave a war cry.
    "A dragon!" he hissed,
    Then swatted and missed,
    And fled 'neath the couch with a sigh.

    1 message on Pro · $0.0028 to run · 2.4 s · 175 tokens out

  • Gemini 3.1 Pro

    Failed

    Graded 3.7 of 5 on average (lowest 2).

    My cat thinks the vacuum's a beast,
    A fire-breathing dragon, at least.
    It roars down the hall,
    He hides by the wall,
    Until the loud monster has ceased.

    1 message on Pro · $0.0032 to run · 5.3 s · 467 tokens out

10. Editor's notes, not a rewrite

Everyday · 4 of 4 passed

Strengths and problems, ranked, give you a revision plan; "don't rewrite it" keeps the voice yours.

The prompt: replace the parts in [brackets]

Give me an editor's notes on this opening paragraph: three strengths and three problems, the most important first. Don't rewrite it. [paste your paragraph]

Open in llmwise
How we filled it in and checked the replies
Give me an editor's notes on this opening paragraph: three strengths and three problems, the most important first. Don't rewrite it.

It was a dark and stormy night in the city of Brenmoor, a city known for its tall towers and its many secrets, and Detective Hal Rourke, who had been a detective for twenty years and had seen everything, walked slowly into the bar, which was called The Anchor, and sat down.
  • Real problems: Names the cliché opening, the overlong sentence and the telling rather than showing.
  • Real strengths: Finds genuine strengths.
  • No rewrite: Doesn't rewrite the paragraph.
  • GPT-6 Luna

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    **Strengths**
    1. **Clear genre signal:** The storm, bar, and detective establish a noir/crime atmosphere immediately.
    2. **A hint of setting:** “Brenmoor” and its “tall towers” suggest a city with a distinct, potentially atmospheric character.
    3. **A simple opening action:** Hal enters the bar, giving the paragraph a concrete moment to build from.
    
    **Problems**
    1. **The opening phrase is highly familiar:** “It was a dark and stormy night” risks making the first line feel clichéd before the story has a chance to distinguish itself.
    2. **The sentence is overloaded:** Several clauses pile up details and qualifications, making the action feel slow and the prose cumbersome.
    3. **The character description relies on generic claims:** “Had been a detective for twenty years” and “had seen everything” tell us he’s experienced, but don’t yet make him feel individual.

    1 message on Pro · $0.0001 to run · 4.0 s · 260 tokens out

  • Claude Opus 5.5

    Passed

    Graded 5.0 of 5 on average (lowest 5).

    ## Strengths
    
    1. **Genre is clear immediately.** Detective, bar, storm, secretive city: the reader knows within one sentence they're in noir territory. That's a real asset.
    2. **Specific names.** "Brenmoor," "Hal Rourke," and "The Anchor" are concrete and sound right for the genre. "The Anchor" in particular has a weathered, port-town feel.
    3. **It lands in a scene.** The paragraph ends with the character physically placed somewhere, which sets up the next beat (a conversation, a stranger, a drink).
    
    ## Problems
    
    1. **The opening line is a famous cliché.** "It was a dark and stormy night" is the textbook example of a bad opening (Bulwer-Lytton). Unless this is deliberate parody, many readers and agents will stop here. If it *is* parody, nothing else in the paragraph signals that yet.
    2. **Telling instead of showing.** "Known for its many secrets" and "had seen everything" assert qualities instead of demonstrating them. They're generic enough to describe any noir city or detective, so they give the reader nothing distinctive about *this* one.
    3. **Overloaded sentence with no hook.** One sentence carries setting, backstory, and action through stacked "which/who" clauses, burying the only action: walking in and sitting down, which is too mundane to pull the reader forward. The repetitions ("city… a city," "Detective… a detective") add drag.

    1 message on Pro · $0.0195 to run · 10.1 s · 830 tokens out

  • Claude Sonnet 5.5

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    **Strengths (most important first)**
    
    1. **Clear character anchor.** Hal Rourke arrives with a name, profession, and implied weariness. The reader knows whose eyes we're behind right away.
    2. **Genre signals are immediate.** Rain, a noir detective, a bar, and a city with secrets tell the reader what kind of story this is and set expectations efficiently.
    3. **Evocative names.** "Brenmoor" and "The Anchor" feel grounded and atmospheric. "The Anchor" in particular hints at someone weighed down or stuck.
    
    **Problems (most important first)**
    
    1. **Clichés dominate.** "Dark and stormy night," "seen everything," and "city of secrets" are among the most worn noir phrases. They make the voice feel generic and undercut any sense of a distinct narrator or world.
    2. **Telling instead of showing.** We're told Rourke is experienced and world-weary ("twenty years," "seen everything") rather than shown through a gesture, a reaction, or a specific detail. The characterization is a résumé, not a person.
    3. **One overloaded, shapeless sentence.** Stacked relative clauses ("a city known for…", "who had been…", "which was called…") bury the main action, *walked in and sat down*, at the end. The rhythm is flat, and the actual event is the least vivid thing in it. Backstory and setting are also front-loaded before anything happens.

    1 message on Pro · $0.0061 to run · 4.7 s · 468 tokens out

  • Gemini 3.1 Pro

    Passed

    Graded 4.7 of 5 on average (lowest 4).

    **Problems**
    
    1. **Severe Cliché:** Starting with "It was a dark and stormy night" is a famously tired trope. It instantly undermines the originality of the piece. 
    2. **Run-on Sentence Structure:** The entire paragraph is a single, rambling sentence burdened with too many clauses ("who had been," "which was called") and conjunctions ("and"). 
    3. **Repetition and "Telling":** You repeat words unnecessarily ("city of Brenmoor, a city"; "Detective Hal Rourke, who had been a detective") and rely on vague telling ("many secrets," "seen everything") rather than showing these details through action or description.
    
    **Strengths**
    
    1. **Immediate Genre Establishment:** The tone, setting, and character instantly signal to the reader that this is a noir or hardboiled mystery.
    2. **Efficient Exposition:** Despite the clunky sentence structure, you successfully introduce the protagonist, his experience level, the overarching setting, and the immediate location in very few words.
    3. **Grounded Action:** The paragraph ends with the character physically entering a specific space (The Anchor) and taking a seat, setting a clear stage for the plot to begin.

    1 message on Pro · $0.0056 to run · 8.0 s · 849 tokens out

Getting more from these prompts

  • Name the technique you want (show, don't tell; subtext) rather than asking for "better" writing.

  • Give a length and check it: cutting is where models quietly drop facts.

  • Ask for notes instead of a rewrite when you want to keep your voice.

  • State the point of view and tense when continuing a story.

How we ran and checked them

Each prompt was sent the way llmwise sends a message: the app's own system prompt, each model's own settings, and Pro's reply size limit (8,000 tokens), through OpenRouter. Every reply is shown as it came.

Rubric (graded). The grader model scores the reply from 1 to 5 on each published criterion. It passes with an average of 4 or more and no criterion under 3, and only if it also meets the prompt's automatic rules (length, words it must or mustn't use).

The grader is Claude Opus 5.5 at low reasoning effort; its own replies are graded by GPT-6 Astra, so no model grades itself. Its prompt is on our test runs page.

More tested prompts

Questions

Which AI is best for creative writing?

In our runs, Claude Opus 5.5 passed the most: 10 of 10. Each reply was graded against a published rubric; the prompts with a hard rule (a word limit, a banned word) were also checked automatically.

Will these prompts write for me?

Several prompts here give feedback rather than rewriting: the clichés in your paragraph, an editor's notes. They keep the writing yours and teach you more.

What about essays?

For essays, the tested essay prompts help you plan, question and check your own work; see the essay prompts page.

Claude, GPT, Gemini, DeepSeek, Grok, Kimi, and GLM, in one chat.

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