
Simple Midjourney Parameters You Need to Know
Apr 28, 2025
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Getting great images from Midjourney starts with writing good prompts. While there are many settings, focusing on a few key parameters can make a big difference quickly. This guide covers five essential parameters that help you easily control your Midjourney creations.
Control Image Shape with Aspect Ratio
The first parameter you'll likely use is aspect ratio. This setting tells Midjourney the width and height relationship of your image. It's typed as `--ar` followed by two numbers separated by a colon, like `16:9` or `9:16`.
A few common examples:
`--ar 1:1`: This is the default. You get a square image, good for Instagram posts.
`--ar 16:9`: A wide shape, like a computer screen or presentation slide.
`--ar 9:16`: A tall shape, perfect for vertical videos like TikTok or Instagram Reels.
`--ar 3:2` or `--ar 2:3`: Other popular photo sizes.
You don't just have to use the standard ones. You can try custom ratios like `--ar 16:12` to get different shapes and see what results you prefer.
Adjust Creative Freedom with Stylize
The Stylize parameter lets you tell Midjourney how much artistic license to take with your prompt. Use `--s` followed by a number from 0 to 1000.
Here’s what the numbers mean:
`--s 0`: Midjourney sticks closely to your prompt. Less creative interpretation.
`--s 100`: This is the default setting. A moderate level of creativity.
`--s 1000`: Midjourney takes significant creative freedom. You might get surprising results that go beyond your exact words.
Experiment with different Stylize values for the same prompt to see how much the look and feel of the image changes. Lower values give you control; higher values give Midjourney control.
Increase Image Variety with Chaos
The Chaos parameter affects the four generated images you see after prompting. It doesn't add chaos *to* the image itself, but changes the variation *between* the four images. Use `--c` followed by a number from 0 to 100.
`--c 0`: This is the default. The four images in the grid will be quite similar, maybe with small angle or detail differences.
`--c 40`: The images show noticeable differences from each other.
`--c 100`: The four images can be very different in style and composition, even using the same prompt. This gives you many distinct options right away.
Using Chaos can be great if you want to explore many different directions from a single prompt without having to rewrite it multiple times. It helps you see varied possibilities.
Managing many prompts and variations can get complex. Tools designed to help automate your Midjourney process can save you time. Consider trying the Midjourney Automation Suite from TitanXT to manage your creative workflow.
Remove Unwanted Items with No
Sometimes, Midjourney adds things you don't want. The No parameter is specifically for telling the AI what to leave out. Use `--no` followed by the terms you want to exclude.
For example, if you prompt for a street scene but don't bicycles in the picture, you can add `--no bicycles` to your prompt. Midjourney will try its best to avoid including bicycles in the final image.
This parameter is useful when Midjourney tends to include certain elements based on typical associations or common image patterns. You can combine multiple items you don't want. For example, `--no trees cars`.
Balance Text and Image Influence with Image Weight
Image Weight (`--iw`) is used when you are combining a text prompt with an image prompt. An image prompt uses an image URL at the start of the prompt. This parameter controls how much Midjourney should focus on the text part of the prompt versus the image part.
The range is from 0.25 to 2. The default is 1.
`--iw 0.25`: The final image will follow the text prompt very closely, with less influence from the image you provided.
`--iw 1`: The default balance between text and image influence.
`--iw 2`: The final image will greatly resemble the structure, style, or content of the image you provided, with less influence from the text prompt.
Use this parameter when you are remixing images or guiding Midjourney with a base image, but want more or less weight given to a specific source.
Easily Change Midjourney Versions
Midjourney gets updated regularly with new models. The default is usually the latest version. However, you might want to use an older version for a specific style or result.
Instead of changing this in your settings, a simple way is to add the `--v` parameter followed by the version number at the end of your prompt. For example, to use version 5.2, you would add `--v 5.2`. To use version 6, add `--v 6`.
This allows you to quickly switch versions for specific images without changing your default settings, making it easy to compare results or use a version you prefer for certain tasks.
Conclusion
Understanding these five core parameters – Aspect Ratio, Stylize, Chaos, No, and Image Weight – gives you much greater control over your Midjourney creations. Paired with a simple method to change versions, you have powerful tools to refine your visual ideas.
Start by experimenting with one or two parameters at a time to see how they affect your images. Practice makes perfect! If you're looking for ways to streamline your prompting and image generation process, exploring tools like the Midjourney Automation Suite from TitanXT can help simplify getting the results you want.
Happy prompting!






