Not specifying the Quality parameter defaults to the highest quality image creation, though it does not affect image resolution. All images will have a maximum resolution of 1024 x 1024 pixels.

The Quality parameter on Midjourney accepts values of 0.25, 0.5, and 1. Custom values larger than 0.5 are rounded to 1. Setting the quality to 2 is accepted in Midjourney versions 1, 2, and 3, but does not provide better results.

The Quality parameter can be added to your input prompt using the --quality (value) or --q (value) command. Simply append the parameter at the end of your prompt.

For example, you can use the syntax /imagine prompt --quality (value) or /imagine prompt --q (value).

Experiment with different quality values to see the variations in image generation. For more reliable results, consider using the Seed parameter on Midjourney.

The quality value determines the level of detail and time taken for image generation. Setting the quality to 0.25 generates images 4x faster and consumes 1/4 of GPU minutes. Quality 0.5 provides more intricate patterns with a 2x faster generation time and 1/2 of GPU minutes. Quality 1 is the default setting, consuming the same time and GPU minutes as without the parameter.