How to write an AI image prompt with a clear visual idea
Turn a vague image request into a brief with a subject, composition, lighting, and an intended use.
Describe what should be visible before adding words about quality.
Start with where the image will live
A website banner needs a different composition from a square profile image. Decide the placement, aspect ratio, and whether text will sit over the image. A beautiful centered subject can be wrong for a banner if it occupies the only space available for the headline. State the intended use before asking for variations.
Choose a few visual decisions
Name the subject, what it is doing, its setting, the framing, and the light. “A blue ceramic mug on a windowsill, close view, rainy afternoon light, empty space on the left” is a direction you can inspect. A pile of adjectives such as stunning, premium, and cinematic does not tell you where the mug should go. Use a reference you are allowed to use when a specific shape or style matters.
Change one variable when learning
If you change the subject, color, framing, and medium at once, it is difficult to know what improved the result. Hold the core brief steady and try one change, such as moving from a close view to a wider scene. Record what worked. Once you understand the direction, ask for broader variations intentionally rather than repeatedly rolling for something you happen to like.
Review the image at its actual size
Inspect edges, hands, repeated objects, perspective, and any text that needs to be exact. A small preview can hide mistakes. For a product, compare visible details with the real object before using the image. If precise typography is important, consider adding final text in a layout tool. The image brief lab helps you prepare and copy a request; generation happens in the image tool you choose.
A worked example
Original teaching example, not a recorded model run.
Vague starting point: Make a stunning image for my website.
A more useful brief
Create a wide editorial illustration for a community repair event. Show a blue toolbox and a repaired desk lamp on the right. Leave the left third uncluttered for a headline. Use flat shapes, soft daylight colors, and no embedded lettering.
Why this helps: The brief makes layout and purpose explicit. You can judge the result by whether it has usable headline space and the requested objects.
Your turn
Build a brief in the image lab. Try two versions with only the composition changed and compare them at the intended display size.
You are looking for this: You can say why one composition works better for the actual placement.
A quick check
Your banner needs a headline on the left. What should the image brief specify?
- More quality adjectives
- Uncluttered space on the left
- As many objects as possible
Answer: Uncluttered space on the left
Composition should serve the placement. Leave the text somewhere readable to go.
Sources and how to read this guide
Examples and exercises are original teaching material, not recorded model runs, measured time savings, or certifications. Official sources were consulted September 6, 2026. Product behavior can change.
- Google · Image generation guide: Official examples of describing and refining images. Availability depends on your tool.
Take the idea further
- Edit AI images without losing the parts you like
- Use AI for creative directions, then make a real choice
All learning paths | Practice challenges.
Related Power of AI pages
Keep reading with Start here, everyday uses, the tool guide, the writing workshop, and sources and standards.