How to write AI image prompts
A good prompt names the subject, setting, style, and lighting. On mobile you type in a small box, so short clear phrases beat long paragraphs. These patterns work in UltraPix and most text-to-image apps.
Basic prompt structure
Start with the subject: “a ceramic mug on a wooden table.” Add style: “product photo, soft studio light.” Add constraints: “white background, 4:5 aspect.”
Put the most important words first. Models weight early tokens heavily.
Style and mood
Name a medium if you care: “oil painting,” “flat vector,” “35mm film photo.”
For portraits, specify age range, expression, and wardrobe instead of vague words like “beautiful.”
Ready to try it?
Download free on Google Play and start creating in seconds.
What to avoid
Do not stack ten adjectives. Pick three that matter.
Negative prompts (what to exclude) help on some models. In UltraPix, check if the screen exposes negative text for your selected model.
Iterate on the phone
Save prompts that worked. Change one variable per run: lighting, then lens, then color palette.
Use image-to-image when you have a reference photo instead of describing every detail in text.
Related tools
More AI tools in UltraPix on Android—browse as a guest, sign in to generate and save.
FAQ
- How long can prompts be in UltraPix?
- Prompts can be up to 2000 characters. Shorter focused prompts often work better than max-length blocks.
- Can I reuse prompts?
- Copy successful prompts from your generation history in the app and tweak one line for the next variation.
Get UltraPix
Download the app on Google Play to try text-to-image, background removal, and upscale on your phone.