Prompt Emphasis
Use ( ) to strengthen a tag and [ ] to weaken it — a volume knob for parts of your prompt.
Prompt emphasis (also called prompt weighting) lets you turn the "volume" up or down on individual parts of your Prompt:
Parentheses
( )strengthen a tag:(cloud)makes clouds more prominent. Stack them for more effect:((cloud)).Square brackets
[ ]weaken a tag:[cloud]makes clouds subtler.
Example
> 1boy, short hair, school uniform, standing, balcony, (cloud), cinematic lighting
gives you a dramatic cloudy sky, while the same prompt with [cloud] pushes the clouds into the background.
Tips
Position is emphasis too. Tags at the front of your prompt already carry more weight than tags at the end — often just reordering is enough.
Don't overdo it. Piling up
(((((tags)))))can distort the image. One or two layers is usually plenty.Numeric weights are unreliable on PixAI. Formats like
(tag:1.4)from other tools don't always produce stable results with PixAI's models — stick to brackets.Emphasis matters less on DiT models like Tsubaki and Serin, which respond better to descriptive natural-language sentences.