Upscalers
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Upscalers

  • Dark
    Light

Midjourney starts by generating a grid of low-resolution image options for each Job. You can use a Midjourney upscaler on any grid image to increase the size and add additional details. There are multiple upscale models available for upscaling an image.

The U1 U2 U3 U4 buttons under each image grid are used to upscale the selected image.

Midjourney Dimensions and Sizes

All sizes are for square 1:1 aspect ratios.

Model Version Starting Grid Size V4 Default Upscaler Detail Upscale Light Upscale Beta Upscale Anime Upscale Max Upscale**
Default Model
Version 4
512 x 512 1024 x 1024 * 1024 x 1024 1024 x 1024 2048 x 2048 1024 x 1024 -
Version 5 1024 x 1024 - - - - - -
v1–v3 256 x 256 - 1024 x 1024* 1024 x 1024 1024 x 1024 1024 x 1024 1664 x 1664
niji 512 x 512 1024 x 1024 1024 x 1024 1024 x 1024 2048 x 2048 1024 x 1024 -
test / testp 512 x 512 - - - 2048 x 2048 1024 x 1024* -
hd 512 x 512 - 1536 x 1536* 1536 x 1536 2048 x 2048 - 1024 x 1024

* = the default upscaler for each Midjourney Version Model.
** Max Upscale is an older resource-intensive upscaler and is only available when users are in Fast Mode.


Midjourney Model 5

The newest Midjourney Model Version 5 produces high-resolution 1024 x1024 px image grids without needing an additional step to upscale each mage. When using Midjourney Model Version 5, the U1 U2 U3 U4 buttons under each image grid will separate the selected image from the initial image grid.


Regular (Default) Upscaler

The latest default upscaler increases image size while smoothing or refining details. Some small elements may change between the initial grid image and the finished upscale.

prompt: adorable rubber duck medieval knight
prompt: sand cathedral

Light Upscaler

The Light Upscaler creates a 1024px x 1024px image and adds a moderate amount of details and textures. The Light Uspscaler is useful for faces and smooth surfaces when using older Midjourney Model Versions.

Use the --uplight parameter to change the behavior of the U1 U2 U3 U4 upscale buttons to use the Light Upscaler.

prompt: adorable rubber duck medieval knight
prompt: sand cathedral

Detailed Upscaler

The Detail Upscaler, creates a 1024px x 1024px image and adds many additional fine details to the image.

Images that have been upscaled with the detailed upscaler can be upscaled again using the Upscale to Max button for a final resolution of 1664px x 1664px. Upscale to Max is only available when in Fast mode.

The Detailed upscaler is the default for Midjourney Model Versions V1, V2, V3, and hd

prompt: adorable rubber duck medieval knight
prompt: sand cathedral

Beta Upscaler

The Beta Upscaler creates a 2048px x 2048px image without adding many additional details. The Beta Uspcaler is useful for faces and smooth surfaces.

Use the --upbeta parameter to change the behavior of the U1 U2 U3 U4 upscale buttons to use the Beta Upscaler.

prompt: adorable rubber duck medieval knight
prompt: sand cathedral

Anime Upscaler

The Anime Upscaler is the default upscaler for the --niji model. It upscales images to 1024px x 1024px and is optimized to work well with illustrated and anime styles.

Use the --upanime parameter to change the behavior of the U1 U2 U3 U4 upscale buttons to use the Anime Upscaler.

prompt: adorable rubber duck medieval knight
prompt: sand cathedral

Remaster

Remaster is an additional option for previously upscaled images made with the V1, V2, or V3 Model Versions. Remaster will upscale an image again using the --test and --creative parameters blending the composition of the original image and the coherency of the newer --test model.

Remaster any previously upscaled job by clicking the 🆕 Remaster button found beneth the original upscale.

To Remaster very old jobs, use the /show command to refresh that job in Discord.

Example of Remastered midjourney image

Left: Image upscaled with default upscaler. Right: Remastered Image.

Remaster Notes

How to Switch Upscalers

Use the Settings Command

⏫ Regular Upscale ⬆️ Light Upscale 🔥 Beta Upscale

Type /settings and select your preferred upscaler from the menu.

Use an Upscaler Parameter

Add --uplight, --upbeta or --upanime to the end of your prompt.

Use an Upscale Redo Button

⏫ Regular Upscale ⬆️ Light Upscale 🔥 Beta Upscale

After you upscale an image you will see a row of buttons underneath the image that let you redo the upscale using a different upscaler model.

Image showing the Midjourney light upscale redo and beta upscale redo buttons


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