Skip to content

Loading

Make images and video without living inside the AI toolchain.

A local-first workspace for turning ComfyUI workflows into tools you can use, understand, and reuse.

Product

Download Studio Resources Workflow Doctor Agent Access

Learn

Docs FAQ Updates

Connect

Feedback Privacy Terms Desktop EULA Acceptable use Report content

© 2026 Tea Time Labs

Local AI creation, organized.

Have a ComfyUI workflow? Get a readable Workflow Doc in your browser.Make a workflow readable.Try it now ↗

DiscoverResources

My Desk Download StudioLanguage

comfyui-upscale-by-model | ST Studio

Resources/comfyui-upscale-by-model

Node packVerifiedExternal

comfyui-upscale-by-model

Sourcegithub.com/cdzcj/comfyui-upscale-by-model

Maintainer@ronn1xGCgrade

Package profile

Status: Verified
Publisher: @ronn1xG
Source: GitHub
Stars: 4

README

comfyui-upscale-by-model

This custom node allow upscaling an image by a factor using a model.

screenshot

Usage

This node will do the following steps:

Related resources

1 connection

Used byFast Chroma w/ Upscaler, Refiner and Face detailer [Low VRAM] — v1.4

Sources

6 sources

Comfy registrySource

raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/extension-node-map.json

Comfy registrySource

raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/extension-node-map.json

Source excerpts

1 excerpt

NoteJul 18github.com/cdzcj/comfyui-upscale-by-model

Source context: Repo cdzcj/comfyui-upscale-by-model

Upscale the input image with the upscale model.

Check the size of the upscaled image.

If the upscaled size is larger than the target size (calculated from the upscale factor upscale_by), then downscale the image to the target size using the scaling method defined by rescale_method.
If the upscaled size is smaller than or equal to the target size, then do nothing.

Return the upscaled image.

Input

upscale_model: Take an upscale model.
image: The image to upscale.
upscale_by: The factor to upscale the image by.
rescale_method: The method to downscale the image to the target scale.

Output

IMAGE: The upscaled image.

Install

Clone this repository into ComfyUI's custom_nodes folder.

Nodes in this pack

1 node

UpscaleImageByUsingModel

Verified Sep 13

GitHubSourceVersion e2bd620df79d73463e4f15dbedd3837f4496e6fe

github.com/ronn1xG/comfyui-upscale-by-model

Verified Sep 13

GitHubSource

github.com/cdzcj/comfyui-upscale-by-model

Verified Aug 9

GitHubSource

github.com/1x1r/comfyui-upscale-by-model

Comfy registrySource

raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/extension-node-map.json

Verified Aug 2