In prompt writing, “certainty” means you can run the same prompt multiple times and still get outputs that are:
Replace vague words (nice, beautiful, cool) with concrete ones:
Conflicting instructions reduce certainty:
Say how the image is framed:
Stick to one style lane per prompt:
If you change five things at once, it’s hard to tell what worked.
Reference images provide stronger constraints. You can start from a reference prompt and then tweak:
Try it: /image-to-prompt