Midjourney Parameter Function Comparison: How to Choose stylize, chaos, and quality

With the same prompt, adding different parameters in Midjourney can make the image feel like it has a different “temperament.” This article focuses only on functional comparisons: what --stylize, --chaos, and --quality each control, what scenarios they suit, and how to combine them more reliably.

--stylize: Strength of stylization, has the biggest impact on “does it look like it”

In Midjourney, --stylize (often written as --s) determines how much the model “artistically interprets” what you describe. The higher the value, the more atmosphere and aesthetic appeal the image tends to have, but the details may drift further from your literal requirements; the lower the value, the closer it sticks to the description and the more restrained the style becomes.

For product images and structurally clear scenes (UI, industrial design, instructional diagrams), Midjourney is better suited to using a lower --stylize to preserve fidelity. For posters, illustrations, and concept art, you can push --stylize higher and let Midjourney proactively “add extra flair.”

--chaos: Degree of variation in outputs, determines “stable” vs. “try more options”

--chaos (often written as --c) controls how divergent a set of outputs is. Low chaos is more stable—differences among the four-grid results are smaller—making it suitable when you already have a clear composition and only want minor tweaks; high chaos makes Midjourney bolder in composition, camera angle, and which elements it keeps or drops.

When you’re stuck because the overall direction is uncertain, increasing --chaos is often more effective than repeatedly rewriting the prompt: first let Midjourney generate more options, then go back to low chaos to converge. Conversely, if you’re producing a consistent series, chaos should be kept as low as possible.

--quality: Rendering effort and speed, affects detail but costs more

--quality (often written as --q) is essentially a trade-off among speed, cost, and detail: higher quality is usually slower and more resource-intensive, but yields fuller detail. During the sketch/exploration stage, using a lower --quality to quickly narrow down directions is more cost-effective; for the final, raise --quality to add texture and finish.

In Midjourney, --quality is not a case of “the higher the better,” because if the prompt itself is unclear, raising quality only renders the problem in greater polish. Describe the subject, materials, and lighting clearly first—then talking about --quality becomes more effective.

How to combine them more practically: three commonly used “parameter recipes”

If you want stable outputs: low --chaos + medium-to-low --stylize, then use a moderate --quality for the final—Midjourney is more likely to follow your intent. If you want idea generation: raise --chaos and pair it with medium-to-high --stylize, letting Midjourney offer more compositions and moods.

If you want “good-looking without going off-topic”: keep --stylize in a mid-range, keep --chaos relatively low, first use a lower --quality to shortlist from the four-grid, then raise --quality for the final version after you’ve chosen. You’ll clearly feel Midjourney shift from “pure luck” to “controlled iteration.”