
Mastering Midjourney: A Deep Dive into Parameters for Stunning AI Art
Apr 22, 2025
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Midjourney is an amazing tool that lets you create art using AI. When you type in a text prompt, Midjourney uses its default settings to generate images. These settings are called parameters. You can change these parameters to get different results. This guide will give you a crash course in Midjourney parameters, so you can make the most of this powerful tool.
Understanding Midjourney Parameters
Parameters are like instructions you give Midjourney to control how it creates images. They start with two dashes (--), followed by the parameter name and a value. For example, if you want a 3:4 image, you would use the aspect ratio parameter like this: --aspect 3:4. Remember to put parameters at the end of your prompt and separate them with spaces. But the parameters you see in your settings aren't all of the parameters that Midjourney has. There are dozens that can customize your prompts.
Version: Choosing Your Midjourney Model
[P]The version parameter controls which Midjourney model is used to generate your images. Each model has a unique look and understands prompts differently. You can use different models by adding the version parameter to your prompt. For example: --version 3 or --v 3.
Here are the current version options:[/P]
--v 5.0
--v 5.1
--v 5.2
--v 6.0
--v 6.1
--test
--testp
--niji 5
Trying different versions can be fun and show you how Midjourney has evolved.
Aspect Ratio: Shaping Your Image
Aspect ratio is the relationship between the width and height of your image, written as width:height. The default is 1:1 (square). Change it using --aspect or --ar, followed by the ratio. For example: --ar 16:9. Keep in mind there are limits to how tall or wide your images can be.
Chaos: Adding Variety
Chaos affects how diverse the results are in your image grid. The default value is 0, and it goes up to 100 for maximum diversity. Use --chaos or --c followed by a number. For example: --c 50. A higher chaos value will give you more varied results.
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Style Parameters: Fine-Tuning Your Aesthetic
Stylize: Controlling the Artistic Strength
Stylize controls the strength of Midjourney's default visual aesthetic. The default value is 100, and the range is 0 to 1000. Use --stylize or --s followed by a number. For example: --s 500. A higher value gives more stylized results but might reduce how well the prompt is followed.
Style Reference: Borrowing Aesthetics
Style reference (--style_reference or --sref) is a powerful feature that takes aesthetic elements like color palette, medium, and texture from a reference image and applies them to your results. You can use image URLs or style reference codes. You can even use "random" to apply a random style. The style weight parameter (--sw) controls the influence of the style reference, with a default of 100 and a range of 0 to 1000.
Style: Raw vs. Stylized
The style parameter lets you minimize Midjourney's influence on the results. Using --style raw can be helpful for more photorealistic images. There may be other style modes available depending on the model you are using.
Controlling Image Generation
Quality: Detail and Time
The quality parameter controls how much time Midjourney spends generating your images. The default value is 1. Lower values mean faster generation but less detail. Higher values mean slower generation but more detail. Different Midjourney models accept different quality values. Use --quality or --q followed by a value, such as --q 2 for higher quality.
Speed: Turbo, Fast, and Relax
You can control how fast your images are generated using turbo, fast, and relax modes. Turbo and fast use your fast GPU hours, while relax mode does not. You can set your default speed mode in your settings or override it with a parameter. Add --turbo, --fast, or --relax to your prompt to specify the speed mode. Turbo is the fastest, but uses more GPU time.
Repeat: Multiple Runs
Repeat (--repeat or --r) tells Midjourney to run the same prompt multiple times. It can only be used with fast or turbo mode. For example, --r 5 will run the prompt five times.
Stop: Ending Early
The stop parameter lets you end image generation early. It takes values between 10 and 100. For example, --stop 50 means stop at 50% completion. This can be useful for softer, more abstract results.
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Advanced Parameters
Image Weight: Influencing with Images
Image weight (--iw) can only be used with image prompts, where you have one or more images at the beginning of your prompt. Image Weight controls how much influence those images have on your results. The default value is 1, and in Midjourney V6, it takes decimal values between 0 and 3. Higher values make the generated image look more like the reference image.
Character Reference: Matching Characters
Character reference (--cref) tries to match a character from a reference image. Paste the URL of your character reference image after --cref. The character weight parameter (--cw) controls how closely Midjourney matches the clothing and hairstyle of your reference character. The default is 100, and the range is 0 to 100. A value of 0 will only lock onto the face, allowing you to change the clothing.
Personalization: Your Custom Model
Personalization (--personalize or --p) lets you create your own custom Midjourney model based on your preferred visual aesthetics. You first need to teach Midjourney about your style. When enabled, your personalized model will override the default Midjourney aesthetic. The stylize parameter then acts on your personalized model instead of the default aesthetic.
No: Excluding Elements
The no parameter tells Midjourney what you don't want in your image. Add --no followed by whatever you want to exclude, separated by commas. For example, --no trees, clouds will exclude trees and clouds from the image.
Tile: Creating Patterns
Tile (--tile) is for creating repeating patterns. It doesn't require any values, and the resulting images can be tiled to create a seamless repeating pattern. Use version 6.1 or higher for upscaling tile results to avoid breaking the seamless pattern.
Seed: Replicating Results
Each Midjourney job starts with a canvas of visual noise, linked to a seed number. If you want to use a particular seed number, use the seed parameter (--seed). For example, --seed 1234. Using the same seed number will give you similar results each time.
Weird: Embracing the Unexpected
The weird parameter (--weird or --w) creates strange and unexpected results. The default value is 0, and it takes values up to 3000. Higher values create increasingly weird results. Experiment to see what value you prefer for a given prompt. It's a way to add an element of surprise to your creations.
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Conclusion
Midjourney parameters offer a vast array of options to customize your AI-generated art. By understanding and experimenting with these parameters, you can unlock your creative potential and create stunning visuals. Don't be afraid to try different combinations and see what you can create! To stay up-to-date, download the free parameter guide for the latest information and new parameters.






