--q parameter changes how much time is spent generating an image. Higher-quality settings take longer to process and produce more details. Higher values also mean more GPU minutes are used per job. The quality setting does not impact resolution.
--quality value is 1.
--quality only accepts the values: .25, .5, and 1 for the current model. Larger values are rounded down to 1.
--quality only influences the initial image generation.
--quality works with Model Versions 4, 5, 5.1, 5.2, and niji 5.
The Influence of Quality on Jobs
--quality settings aren't always better. Sometimes a lower
--quality settings can produce better results—depending on the image you're trying to create. Lower
--quality settings might be best for a gestural abstract look. Higher
--quality values may improve the look of architectural images that benefit from many details. Choose the setting that best matches the kind of image you're hoping to create.
Version Quality Compatibility
|Model Version||Quality .25||Quality .5||Quality 1|
|Version 5, 5.1, and 5.2||✓||✓||✓|
detailed peony illustration --q .25
quickest results, least detailed results4× faster and ¼ the GPU minutes.
less detailed results2× faster and ½ the GPU minutes.
the default setting
How to Use the Quality Parameter
--quality <value> or
--q <value> to the end of your prompt.