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Free tool · Writing prompts

Writing prompt generator

Give a theme and get 5 fresh writing prompts, each with a character, a detail and something at stake: 1 free run a day on Claude Haiku 5.5, no account needed. For story writers, poets, journaling and debate practice.

1 free run a day, no account needed

Claude Haiku 5.5

Up to 600 characters. No files, tools or web search in a free run. One free run a browser, and one a network each day, shared with the free message on our home page.

Try an example:

By running it, you agree to the Terms and Privacy Policy and confirm you’re 18 or older. We keep what you send and its answer for 7 days, or in your account if you sign up.

Test runs checked . Updated .

Writing prompt generator: three examples

Three inputs and the prompts a free run gave each, made once on September 28, 2026 with GPT-6 Luna and shown as it came back. A free run is on Claude Haiku 5.5 now. The example buttons in the box above show the same.

Story prompts

A mystery on a night train.

1. On the overnight train from Prague to Vienna, conductor Irena finds a locked compartment with no passenger listed and a fresh ticket punched for a station the train stopped serving decades ago; before dawn, she must decide whether to open the door or obey the order to keep it sealed.

2. When renowned violinist Tomas Varga vanishes between two carriages, his assistant discovers his empty case contains a stranger’s wedding ring and a note naming the next passenger to die. The train is hurtling through a snowstorm, and nobody can get off.

3. Every night at 2:17, the same woman boards the train at a station that isn’t on the route, sits beside retired detective Malik, and whispers a different clue to an unsolved murder. Tonight, she gives him the name of his own daughter.

4. A porter finds a bloodstained timetable in a dining car after a blackout, with one passenger’s name crossed out in ink that is still wet. As the lights flicker back on, each traveler insists they’ve never seen the missing passenger.

5. On the last run of the Meridian Express, young chef Nessa discovers that the train’s celebrated clockmaker has been dead for three days—yet someone is still winding the clocks, and they’re counting down to a bridge no one remembers crossing.
Journaling prompts

Starting over in a new city.

1. When you arrived in your new city, what small detail made it feel real—a street name, a sound through the window, or a place you passed every day—and what did you hope it might become for you?

2. What part of your old life did you bring with you, literally or emotionally, and how does holding on to it help or hinder the person you’re trying to become?

3. Think of a moment when you felt like an outsider in your new city. What did you tell yourself then, and what might have changed if you had made one small attempt to connect?

4. Which familiar routine have you rebuilt since starting over, and what does it protect you from—or give you courage to face?

5. If you had to decide today whether to stay in your new city for another year, what would weigh most heavily in your choice, and what might you lose by leaving or by staying?
Debate topics

Technology in everyday life.

1. Should schools replace most printed textbooks with tablets? Supporters might argue that tablets are cheaper over time and keep learning materials up to date; opponents might argue that screens distract students and printed books are easier to use.

2. Should employers be allowed to require workers to respond to messages after work hours? Supporters might argue that quick replies help teams handle urgent problems; opponents might argue that workers need protected time to rest and be with family.

3. Should cities use facial recognition cameras in public spaces to prevent crime? Supporters might argue that the technology can help identify suspects and find missing people; opponents might argue that it threatens privacy and can wrongly target innocent people.

4. Should parents limit children’s daily time on smartphones, even when the phones are used for schoolwork? Supporters might argue that limits protect sleep, attention, and face-to-face relationships; opponents might argue that children need to learn responsible habits and use phones to stay connected.

5. Should people be encouraged to use self-checkout machines instead of staffed checkout lanes? Supporters might argue that self-checkout saves time and gives shoppers more choice; opponents might argue that it eliminates jobs and makes shopping harder for people who need assistance.

Which AI model is best at this? We tested every one

In our test runs of 5 Writing prompt generator inputs on 20 models, Grok 4.7, GPT-6 Sol, GPT-6.1 Sol and 4 more passed the most: 5 of 5. Claude Haiku 5.5, the model a free run is on, passed 4.

Run on October 15, 2026: 5 inputs on 20 models, each with this tool's own instructions.

Each model's results on the tool's test inputs
ModelPassedHard onesMessages used on ProCost per runTime per run
Grok 4.7xAI5 of 52 of 21 each, of 250 a month on Pro$0.009823.5 s
GPT-6 SolOpenAI5 of 52 of 21 each, of 125 a month on Pro$0.00174.7 s
GPT-6.1 SolOpenAI5 of 52 of 21 each, of 125 a month on Pro$0.00216.9 s
Kimi K3Moonshot5 of 52 of 21 each, of 125 a month on Pro$0.003311.2 s
Claude Opus 5.5Anthropic5 of 52 of 21 each, of 62 a month on Pro$0.016410.1 s
GPT-6 AstraOpenAI5 of 52 of 21 each, of 31 a month on Pro$0.010333.4 s
Claude Fable 5.1Anthropic5 of 52 of 21 each, of 31 a month on Pro$0.02569.2 s
GPT-6 LunaOpenAI4 of 51 of 21 each, of 60 a day on Pro$0.00013.0 s
GLM 5.3 FlashZ.ai4 of 51 of 21 each, of 60 a day on Pro$0.00029.4 s
Claude Haiku 5.5AnthropicThe free run's model4 of 51 of 21 each, of 60 a day on Pro$0.00034.2 s
DeepSeek V4.1 FlashDeepSeek4 of 51 of 21 each, of 60 a day on Pro$0.00094.7 s
Gemini 3.8 FlashGoogle4 of 51 of 21 each, of 250 a month on Pro$0.00083.7 s
GLM 5.3Z.ai4 of 51 of 21 each, of 250 a month on Pro$0.00122.1 s
DeepSeek V4 ProDeepSeek4 of 51 of 21 each, of 250 a month on Pro$0.00398.3 s
Mistral Large 4Mistral4 of 51 of 21 each, of 250 a month on Pro$0.007349.9 s
Claude Sonnet 5Anthropic4 of 51 of 21 each, of 125 a month on Pro$0.00497.2 s
Claude Sonnet 5.5Anthropic4 of 51 of 21 each, of 125 a month on Pro$0.00606.2 s
Gemini 3.1 Pro (preview)Google4 of 51 of 21 each, of 125 a month on Pro$0.010014.4 s
Gemini 4 ArgonGoogle4 of 51 of 21 each, of 62 a month on Pro$0.002311.4 s
Claude Haiku 4.5Anthropic3 of 51 of 21 each, of 250 a month on Pro$0.00185.1 s
Passed: of the 5 test inputs, how many answers passed their check (an answer the provider failed to give isn't counted). Messages used: what each run counted as on Pro, and Pro's count on the model. Cost: what OpenRouter charged us per run, on average; in llmwise you pay per message, not per token. Time: from sending to the whole answer.

Side by side: debate topics with two sides

The same input on Grok 4.7 and Claude Haiku 5.5, as each answered it, unedited.

Give me 5 original writing prompts on this theme, numbered, each one to three sentences with something at stake. Make them debate topics for argument-writing practice: each an arguable question, then one line on what each side might argue.

---
Cars in city centres.
Grok 4.7
1. Should Bath close its historic centre to private cars on weekdays, even if hotel guests must drag luggage from a park-and-ride? One side says Roman streets cannot survive modern traffic without losing what visitors come to see; the other says a car-free centre shuts out older guests and local trades with no other way in.
2. Is a congestion charge on cars entering Manchester’s centre a fair price for cleaner air, or a tax on people who cannot live near their jobs? Drivers should pay for the delay and fumes they impose, say supporters; opponents say it hits shift workers and carers while wealthier residents already ride the tram.
3. Should a city demolish the multi-storey car park on Queen Street and build flats there, even if Saturday shoppers then have nowhere to leave a car? Advocates argue every bay kept for cars is a home not built; retailers warn that without parking the high street empties and the rates that fund the city go with it.
4. Ought a car ban in a city centre stop at emergency vehicles, or should taxis and blue-badge holders face the same barriers as everyone else? One side says every exception becomes a loophole until the ban means nothing; the other says a rule that blocks a wheelchair user or a night-shift nurse is not a safety policy.
5. Would letting only electric cars into city centres clean the air, or merely swap one queue for another? Proponents say tailpipe fumes are the harm worth targeting; critics say electric cars still take road space, still injure people on foot, and still crowd buses off the street.
Claude Haiku 5.5
1. Should cities ban private cars from their town centres entirely? Argue for the side of a shopkeeper on a high street whose trade depends on drivers stopping by, against a resident who has spent years breathing exhaust outside her window. Side A might argue that car-free zones revive local business by making streets safer and more pleasant to walk; Side B might argue that drivers, disabled residents and delivery firms lose access and that shops depend on parking.

2. Is it fair to charge drivers a daily fee to enter the city centre? Argue for a transport planner who sees congestion charges as the only lever that works, against a delivery driver who says the charge punishes people with no other way to earn a living. Side A might argue that pricing reduces traffic and funds buses that serve everyone; Side B might argue that the fee falls hardest on low-income workers and small firms with no alternative.

3. Should a city replace its central car parks with public green space? Argue for a retired gardener who wants trees and benches where the concrete sits now, against a councillor who argues that the parking income keeps the library and the swimming pool open. Side A might argue that green space improves health, cools the streets in summer and draws people into the centre; Side B might argue that without parking revenue, essential services will be cut and the public will lose more than it gains.

4. Do electric cars solve the problem of cars in city centres? Argue for an engineer who believes battery vehicles will clean the air without taking space away from people, against a cyclist who says electric cars still clog the roads and kill pedestrians at the same rate. Side A might argue that zero-emission vehicles remove the worst pollution while keeping the freedom of driving; Side B might argue that electric cars keep the space, weight and danger problems of petrol cars, so the city still needs fewer cars, not just cleaner ones.

5. Should cities let residents keep a car in the centre if they have no garage? Argue for a young family in a flat above a bakery, who needs a car for a child with a medical condition, against a neighbour who wants residential streets cleared for children to play. Side A might argue that people in old buildings without off-street parking should not be shut out of their own homes; Side B might argue that a few cars on every street keep the rest of the neighbourhood from ever becoming safe or quiet.

How the inputs are scored

  • Key facts: the answer must state each fact the input turns on (a number, a name, a date or a condition), as the input gives it, keep any format rule the input sets (one sentence, a word limit, a number of items, a length for each), and say nothing the input rules out (an ingredient, a claim it doesn't back); how it's worded isn't judged.
  • Rubric (graded): the grader model scores it from 1 to 5 on each published criterion; it passes with an average of 4 or more and no criterion under 3.

The inputs, each linked to every model's reply where it has a page of its own: story prompts around one character, journaling about a big change, poem prompts from one image, debate topics with two sides, and a constraint carried through all five. Every model gets the tool's own instructions and up to Pro's reply limit. The method is the same as our other test runs.

How to use the Writing prompt generator

  1. Give a theme, a genre or a detail to build on. Up to 600 characters.

  2. Pick what the prompts are for: stories, poems, journaling or debate practice.

  3. Press “Give me prompts”. Without an account you see the first ones (1 free run a day, no account needed).

  4. Pick the prompt that makes you want to start, and write for ten minutes without stopping.

Tips for a better answer

  • Write before you think

    Set a timer for ten minutes and write without stopping or editing. The prompt is a door, not a plan.

  • Add a constraint

    Add a constraint to your theme (“no dialogue”, “told backwards”, “in 100 words”) and the prompts will carry it.

  • Share them

    For a class or a writing group, run it once and give everyone the same five: comparing where each person went is half the fun.

  • Go deeper on one

    Liked prompt 3? Signed in, ask for five more in its direction in the same chat.

What a good prompts looks like

  • Something at stake

    A good prompt has someone who wants something and something in the way. “A woman finds a key” is a start; “a woman finds a key to the house she sold yesterday” is a story.

  • One concrete detail

    A name, a place, an object: one specific detail gets you writing faster than a big theme like “loss” or “change”.

  • Five different angles

    Five prompts should go five ways: different characters, tones and angles on your theme, not the same idea reworded.

  • Room to write

    It leaves the writing to you. A prompt that runs to a paragraph of plot has done the fun part for you.

What's free, and what signing up adds

  • Without an account: 1 free run a day, on Claude Haiku 5.5, shared with the free message on our home page. It takes up to 600 characters, writes up to about 600 tokens (roughly 450 words), and shows you the start of the prompts.

  • Signing up is free, with an email link and no card. llmwise accounts are for people 18 and older. The prompts you ran comes with you as your first chat, and you get 5 free messages on Claude Haiku 5.5.

  • Signed in, the tool runs on the model you pick, on your plan, shows the whole answer, and you can carry on in the chat with any model, or ask another model the same thing.

More free tools are on the tools page, and what each plan gives is on pricing.

Questions

Is the writing prompt generator free?

Yes. Without an account you get 1 run a day on Claude Haiku 5.5, shared with the free message on our home page: you see the first prompts, and the rest when you sign up. Signing up is free and adds 5 free messages on Claude Haiku 5.5, with no card. Every other model in llmwise is on a paid plan.

Will it write the story for me?

No: it writes prompts to start you off, not the story, poem or essay. For a full short story from an idea of your own, there's the AI story generator.

Can it make prompts for essay or debate practice?

Pick “Debate topics” for arguable questions with two real sides, the kind used for argument-writing practice and debate clubs. It gives the question and what each side might argue, and leaves the writing to you.

Can I get random prompts?

Yes. Leave the theme broad (“anything”, “summer”) for variety, or narrow (“a lighthouse, told by the lighthouse”) for five takes on one idea.

Which AI writes the best prompts?

Our test runs below give every model the same five themes and check that its prompts keep the theme and details, with a grader model scoring the hardest ones on published criteria.

Which AI is best for this, in your tests?

In our test runs of 5 Writing prompt generator inputs on 20 models, Grok 4.7, GPT-6 Sol, GPT-6.1 Sol and 4 more passed the most: 5 of 5. Claude Haiku 5.5, the model a free run is on, passed 4. The table on this page has every model's result, what a run counts as on Pro, and the time it took.

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

See what a message costs before you send it. Free is 5 messages to try; sign in with an email link, no password or card.