Writing a good story prompt
The AI is good at turning a small, concrete idea into a full book. It is bad at guessing what you meant. This page is about the difference.
The AI is good at turning a small, concrete idea into a full book. It is bad at guessing what you meant. This page is about the difference.
The shape that works
A strong prompt has a character, a problem, and a hint of resolution:
A shy little fox who learns to make friends on the first day of school.
That is three things: who, what goes wrong, where it is heading. The AI fills in the middle.
What to leave out
You do not need to write the plot beat by beat. You do not need to specify page count, and you do not need to describe the illustrations — the art style handles the look, and the AI writes its own image descriptions for each page.
Common ways prompts go wrong
Too abstract. "A story about kindness" gives the AI nothing to hold onto and produces a generic book. Attach it to something concrete: "A girl who shares her umbrella with a soaked stray cat."
Too many characters. Two or three named characters is the sweet spot for a picture book. Six characters in a ten-page book means nobody gets a personality.
Two stories at once. "A dinosaur goes to space and also learns to swim and meets a wizard" becomes three shallow half-stories. Pick one spine.
Instructions instead of story. "Make it educational and teach the alphabet and rhyme every line" is a brief, not a story. Describe what happens; set the age separately.
Describing the main character's look
There is a separate field for this. Use it for physical description only:
a fluffy white bunny in a yellow raincoat
Keep it to appearance — clothes, colour, species, one distinguishing feature. Personality belongs in the story prompt, not here.
Match the prompt to the age
The reader's age setting does most of the work, but the prompt should not fight it. A 1–2 book cannot carry a betrayal subplot. A 6–9 book can handle a real problem with real stakes — use the room.
If you are out of ideas
Browse the 23 story templates — each is a pre-written theme designed for a specific age band.
Look at the public gallery to see what other people wrote.
Read AI picture book prompt ideas on the blog for worked examples.
Or skip prompting entirely and use a template book, where the story is already written and your child just steps into it.
You can always rewrite
The outline and script cost nothing to regenerate on the free model. If the first draft is not it, change one word in the prompt and run it again — that is usually faster than editing twelve pages by hand.