Upscale Image

The Upscale Image node makes an image larger and sharper without changing what it shows. It has no prompt: you connect an image, choose Recraft Upscale, Topaz Upscale or Nodaro Image Upscale, and the node returns the enhanced picture. Use it as the last step before you publish or print an image.

When to use it

• A generated image looks soft at full size, and you need a sharper final file.
• You need a large file for print or for a big screen.
• You took a frame from a video with Extract Frame and need a larger still.
• You want the highest resolution possible. Generate at the top resolution of your image model, then upscale with Topaz at 4x, or with Nodaro Image Upscale at up to 8x.
• The picture has signs, labels or a logo. Nodaro Image Upscale keeps the lettering exactly as written.

Quick start

Inputs

The output, Image, is the upscaled picture.

Settings

Models

In the Provider list, Recraft Crisp Upscale appears as Recraft Upscale, and Topaz Image Upscale appears as Topaz Upscale. The third choice, Nodaro Image Upscale, is described below.

Nodaro Image Upscale

Nodaro Image Upscale multiplies the width and the height of the image by the factor exactly, and crops nothing. For example, a 1024 × 768 picture at 4x comes back at 4096 × 3072. At 1x, the picture keeps its size and is only enhanced. The upscaler restores detail, and it keeps any text in the picture, such as signs, labels and logos, exactly as written. It never redraws the lettering.

• File format. A JPEG comes back as a JPEG, and a WebP as a WebP. Other pictures come back as PNG or WebP. A transparent background comes back filled with white.
• Input. Up to 20 MB. Send a PNG, JPEG or WebP picture: Nodaro Image Upscale converts nothing.
• Largest output. 8192 × 8192 pixels in total, that is 67,108,864 pixels, and 16,384 pixels on the longest side. An upscale past either limit is refused before anything is charged. Choose a smaller factor or a smaller image.
• Where it is offered. Nodaro Image Upscale is listed only on installs that offer it. Elsewhere, the Provider list does not show it, and a run that names it is refused with 403 model_not_available before anything is charged.

Credits

The Run button shows the price for the selected provider and factor before you run.

Very large Topaz outputs cost more

Topaz is charged by the size of the image it produces. An output of up to 24 megapixels costs the price in the table above. For example, a 2x upscale of an image up to about 2400 × 2400, or a 4x upscale of an image up to about 1200 × 1200, stays in that size. A larger output costs the 1x / 2x price once for every size step, whenever that is more than the price in the table:

For example, a 4x upscale of a 2048 × 2048 image produces about 67 megapixels. That is 4 size steps, so the run costs 4 times the 1x / 2x price instead of the 4x price.

• Over 512 megapixels. An upscale that would produce more than 512 megapixels is refused before anything is charged. Choose a smaller factor or a smaller image.
• When the size is applied. The Run button does not include the size step. The step is applied when the run starts and the image is measured. If the image's size cannot be read before the run, the price in the table is charged.
• File format. Topaz returns a lossless PNG for outputs up to 24 megapixels, and a JPG above that, because a PNG that large can be 100 MB or more.

Nodaro Image Upscale is priced by the output's size

The price of Nodaro Image Upscale follows the total pixels of the image it makes, that is its width times its height. A 1x run is priced by the picture's own size. There are three price steps, and a larger step costs more:

For a 1024 × 1024 picture, 1x and 2x cost the first step, 4x costs the second step and 8x costs the third step. A step starts one pixel past the step before it. For example, a 1025 × 1025 picture at 2x makes 2050 × 2050 pixels, so it costs the second step.

• Before the run. The Run button prices the picture at the size its source node records, such as an upload or a generated result. When the source records no size, the button shows the third step.
• When the size cannot be read. The run holds the third step. It reads the size again from the stored picture before it starts. It is then charged the step of the image it delivers, and the rest of the hold comes back when it finishes. If the size still cannot be read when the run starts, nothing is upscaled, the run fails and the held credits come back.
• Refusals. A picture that is too large, of the wrong kind or unreadable is refused before anything is charged. A run that fails on its picture is refunded.

Troubleshooting

Nodaro Image Upscale says the picture was blocked by the content policy. The picture did not pass the content check, so it was not upscaled, and the credits come back. Topaz Upscale or Recraft Upscale may accept the picture.

Nodaro Image Upscale says it could not read the picture. Send a PNG, JPEG or WebP image, or try Topaz Upscale or Recraft Upscale. The credits come back.

The upscale is refused as too large. The output would pass the largest size of the upscaler. Choose a smaller factor or a smaller image.

A picture from a link is refused. An install that turned off links to other sites refuses them with 403 link_imports_disabled, before anything is read or charged. Upload the picture instead.

Tips

• Upscale last. Remove the background, edit and composite first, then upscale the final image.
• Use Recraft for quick passes and Topaz for final files. Recraft Upscale is enough for quick enhancement when the exact size does not matter. Topaz Upscale at 2x or 4x gives production-quality output.
• Use Nodaro Image Upscale for text. A poster, a product label or a logo keeps its lettering exactly as written. Because the price follows the output's size, a small picture costs little.
• Other formats are converted for Recraft and Topaz. Recraft Upscale and Topaz Upscale convert HEIC, HEIF and AVIF photos before the run. Nodaro Image Upscale upscales the picture as it was sent. This matters most for images that arrive by link through the API.
• Use the video node for clips. To upscale a video, use Upscale Video.

From the API

Upscale Image runs through POST /v1/edit-image, with provider set to recraft-upscale, topaz-image-upscale or nodaro-image-upscale, and upscaleFactor for Topaz and Nodaro Image Upscale. A factor the model does not take is refused with 400 validation_error.

To get the exact price before you run, send the same body to POST /v1/quote with "type": "edit-image". For Nodaro Image Upscale, the quote reads and measures the picture the way a run does, stores nothing and names the price step. A picture whose size cannot be read quotes the hold, with the warnings image_size_unmeasured and settles_to_actual. Topaz and Recraft upscales are quoted the same way. See Run a single node and Jobs.