Mastering Midjourney: A Complete Guide to Parameters

Midjourney offers a wide array of parameters to fine-tune your image generation. Understanding these parameters is essential for unlocking the full potential of this AI tool. Let’s explore the key parameters that can transform your creative process.

Understanding Midjourney Parameters

When you enter a text prompt into Midjourney, the tool uses default settings to determine various aspects of the output, such as aspect ratio and model version. These defaults can be overridden by adding specific parameters to your prompt. Parameters are added at the end of your prompt. To use multiple parameters, just separate each one with a space.

Version Parameter

The version parameter controls which Midjourney model is used to generate your images. To specify a model, use `--version` or `--v` followed by the model number. Each model has its unique style and understanding of prompts. Experimenting with different versions can show how Midjourney has evolved. As of now, you can use versions 1, 2, 3, 4, 5, 5.1, 5.2, 6, and 6.2.

Aspect Ratio Parameter

Aspect ratio defines the relationship between the width and height of your image. The default is 1:1 (square). To change it, use `--aspect` or `--ar` followed by the desired ratio (e.g., `--ar 3:4`). Note that you should use whole numbers, and there are limits to how wide or tall your images can be. For a deeper dive, check out dedicated videos on aspect ratios.

Chaos Parameter

Chaos affects the diversity of the images in your grid. The parameter is `--chaos` or `--c`. The default value is 0, and it ranges up to 100, which provides maximum diversity. Adding a bit of chaos can make your results more interesting.

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Style-Related Parameters

Stylize Parameter

Each Midjourney model has a default visual aesthetic. The stylize parameter (`--stylize` or `--s`) controls the strength of this aesthetic in your results. The default value is 100, with a range from 0 to 1000. Higher values produce more stylized results but may reduce prompt adherence. Stylize is also used with personalization features.

Style Reference Parameter

Style reference (`--style_reference` or `--sref`) is a powerful feature introduced with the V6 model. It allows Midjourney to adopt aesthetic elements from reference images, such as color palettes, textures, and overall style. You can use image URLs, `sref` codes, or the word `random` after the `sref` parameter to apply a random style.

Style Weight Parameter

Style weight (`--style_weight` or `--sw`) controls the influence of the style reference on your results. The default value is 100, ranging from 0 to 1000. Higher values increase the strength of the style reference. For a subtle influence, try a lower value like 15.

Style Parameter

The style parameter (`--style`) is different from style reference. Using `--style raw` minimizes Midjourney's default style, which can be useful for more photorealistic images. In older models like V5, style codes were used to adjust aesthetics. V6 models primarily use `--style raw`.

Other Important Parameters

Quality Parameter

The quality parameter (`--quality` or `--q`) determines how much processing power Midjourney uses to generate your images. The default value is 1. Lower values generate images faster but with less detail, while higher values increase detail at the cost of time.

Speed Parameters: Turbo, Fast, and Relax

These parameters control the speed of image generation. Turbo and fast modes use your fast GPU hours, while relax mode does not (and may not be available on all subscriptions). You can set your default speed mode, but you can override it with the `--turbo`, `--fast`, or `--relax` parameters.

Repeat Parameter

The repeat parameter (`--repeat` or `--r`) tells Midjourney to run the same prompt multiple times. It can only be used with fast or turbo mode. For example, `--repeat 5` runs the prompt five times.

Video Parameter

The video parameter (`--video`) creates a short time-lapse of your initial image grid being generated. It’s best used on Discord, where you can react to the completed grid with an envelope emoji to receive a direct message with the video link.

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Stop Parameter

The stop parameter (`--stop`) allows you to end image generation early. It takes values between 10 and 100, representing the percentage of completion. For example, `--stop 50` stops the process at 50% completion, which can be useful for softer, more abstract results.

Image Weight Parameter

Image weight (`--iw`) is used with image prompts to control the influence of the images on the results. The default value is 1, and it takes decimal values between 0 and 3 in Midjourney V6. This parameter adjusts how much the reference images affect the composition, subject matter, style, and colors of the output.

Character Reference and Character Weight Parameters

Character reference (`--cref`) is similar to style reference but focuses on matching a character from a reference image. Use `--cref` followed by the URL of the image. The character weight parameter (`--cw`) controls how closely Midjourney adheres to the clothing and hairstyle of the reference character. The default value is 100, ranging from 0 to 100.

Personalize Parameter

Personalization (`--personalize` or `--p`) allows you to create a custom Midjourney model based on your preferred visual aesthetics. You first need to teach Midjourney about your style. When enabled, your personalized model overrides the default Midjourney aesthetic. The stylize parameter then acts on your personalized style instead of the default.

No Parameter

The no parameter (`--no`) tells Midjourney what you don’t want in your image. Add `--no` followed by the elements to exclude, separated by commas. This is more effective than using exclusionary phrases in your main prompt text.

Tile Parameter

The tile parameter (`--tile`) is used to create repeating patterns. Adding `--tile` to your prompt enables seamless tiling of the resulting images. Use version 6.1 or higher for upscaling to avoid breaking the seamless pattern.

Seed Parameter

Each Midjourney job starts with a seed number, which is an initialization point for the image grid. By default, a seed number is randomly assigned. If you want to use a specific seed number, use the `--seed` parameter (e.g., `--seed 1111`). This is useful for testing how parameter values affect results.

Weird Parameter

The weird parameter (`--weird` or `--w`) creates strange and unexpected results. The default value is 0, and it ranges up to 3000. Higher values produce more unpredictable outcomes. Experiment to find the value that works best for your prompt.

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Conclusion

Mastering Midjourney's parameters unlocks a world of creative possibilities. By understanding and experimenting with these settings, you can fine-tune your image generation to achieve your desired results. Stay updated with new parameters and features to make the most of this powerful AI tool.