Upscaling In Comfy UI Done Easy!

AI Made Easier
1 Oct 202313:12

TLDRIn this tutorial, the creator guides viewers through the process of upscaling images using Comfy UI and a combination of models, including New Dawn Excel and 4X Ultra Sharp. The video demonstrates how to create custom workflows for image generation and upscaling, resulting in high-resolution images suitable for large prints. The creator also offers to share these workflows with the audience for easy implementation.


  • 🎨 The video tutorial focuses on upscaling images using Comfy UI and creating large images with a new workflow.
  • πŸ–ΌοΈ Two models are used for the process: New Dawn Excel and 4X Ultra Sharp, which can be downloaded from Civit and Upscale Wiki respectively.
  • πŸ”„ The New Dawn Excel model is particularly impressive and works well without a refiner, making it suitable for this tutorial.
  • πŸ“‚ The tutorial demonstrates how to install and integrate the upscale models into Comfy UI by placing them in the appropriate folders.
  • πŸ–±οΈ Customization of the workflow is shown, including the addition of checkpoints and nodes, with refresh capabilities in Comfy UI.
  • πŸ—οΈ The process starts with generating an image using the New Dawn model and an XL layer image of 1024x1024.
  • πŸ” The video highlights the importance of using an upscaler to increase the image size for printing or sharing on social media.
  • πŸ”§ The tutorial shows how to create a custom upscale workflow within Comfy UI, using the 4X Ultra Sharp model for upscaling.
  • πŸ“ˆ The upscaler works by breaking the image into tiles, upscaling them individually, and then stitching them back together to maintain quality and detail.
  • πŸ”„ The process can be repeated multiple times to achieve even larger image sizes, as demonstrated by upscaling the image twice for a massive file size and resolution.
  • πŸ’‘ The video ends with an offer to save and share the workflows for viewers to follow along and learn, encouraging engagement in the comments section.

Q & A

  • What is the main focus of the video?

    -The main focus of the video is to demonstrate the process of upscaling images using Comfy UI and creating large images with a specific workflow.

  • Which upscale model is recommended for this tutorial?

    -The recommended upscale model for this tutorial is 4X Ultra Sharp, which can be downloaded from the Upscale Wiki.

  • What is the name of the model downloaded from Civit?

    -The model downloaded from Civit is called New Dawn Excel.

  • How large should the initial layer image be for the New Dawn XL model?

    -The initial layer image for the New Dawn XL model should be 1024 by 1024 pixels.

  • What is the purpose of the sampler and scheduler in the workflow?

    -The sampler and scheduler are used to control the upscaling process. The sampler determines the algorithm used for generating the image, while the scheduler manages the steps and resources used in the process.

  • How does the upscaler work to maintain image quality?

    -The upscaler works by breaking the image into small tiles and upscaling each tile individually. This method prevents loss of quality or sharpness and avoids creating artifacts, resulting in a detailed final image.

  • What is the benefit of running the upscaler multiple times?

    -Running the upscaler multiple times allows for further enlargement of the image without significant loss of detail or quality, creating a very large and high-resolution image suitable for printing or other high-demand applications.

  • How can you create a custom workflow for upscaling in Comfy UI?

    -To create a custom workflow for upscaling in Comfy UI, you start by adding an image loader, then an upscale model loader, and finally, an output to save the upscaled image. This workflow can be customized by adding multiple upscalers or adjusting the settings to achieve the desired image size and quality.

  • What is the final image size and resolution after the initial upscaling process?

    -After the initial upscaling process, the final image size is 4096 by 4096 pixels.

  • What happens when the image is upscaled multiple times consecutively?

    -When the image is upscaled multiple times consecutively, the file size and resolution increase significantly, resulting in a very large and high-detail image. However, this process can also lead to extremely large file sizes that may be impractical for most uses.

  • How can viewers obtain the workflows demonstrated in the video?

    -Viewers can request the workflows by commenting below the video. The creator may then save and share these workflows for others to download and use, allowing them to follow along and learn more effectively.



πŸ–ΌοΈ Introducing Upscaling with Comfy UI and Creating Large Images

This paragraph introduces the video's focus on upscaling images using Comfy UI and creating large images. The speaker plans to demonstrate the process of upscaling with a specific model called New Dawn Excel, downloaded from Civit, and a favorite upscaler from Upscale Wiki named 4X Ultra Sharp. The speaker guides the audience on how to prepare for the tutorial by subscribing and enabling notifications to not miss any content. The tutorial begins with downloading the necessary models, setting up the Comfy UI with the downloaded models, and preparing a 1024x1024 pixel image for upscaling.


πŸ› οΈ Upscaling Process and Workflow Customization

In this paragraph, the speaker dives into the actual upscaling process, explaining how to use the Comfy UI to create a custom workflow. The process involves running the image through the New Dawn model with a limited number of steps, then using the 4X Ultra Sharp upscaler. The speaker emphasizes the efficiency of the upscaling process, which involves breaking the image into tiles, upscaling them individually, and stitching them back together without losing quality. The speaker also discusses the possibility of running the scaler multiple times for even more detail and offers to share the workflows with the audience.


πŸ“Έ Post-Processing Upscaling and File Management

The final paragraph covers post-processing upscaling and managing the upscaled images. The speaker demonstrates how to upscale an image after it has been generated, creating a new workflow within Comfy UI that includes an image loader, upscaler, and image saver. The speaker upscales the image multiple times, resulting in a significantly larger file size and resolution. The speaker concludes by offering to save and share the workflows for future reference and invites audience feedback on whether they would like the workflows saved and shared.




Upscaling refers to the process of increasing the resolution of an image or video, resulting in a larger and more detailed output. In the context of the video, upscaling is the primary focus, where the creator demonstrates how to use specific software and models to enhance the quality and size of images for various purposes, such as printing or sharing on social media.

πŸ’‘Comfy UI

Comfy UI is a user interface for a specific software used in the video for image processing. It allows users to create workflows, add models, and manage their image upscaling processes with ease. The video highlights the simplicity and effectiveness of using Comfy UI to build custom upscaling workflows.


Workflows are the series of steps or processes that are followed to achieve a particular task or goal. In the video, workflows refer to the custom sequences of operations set up in Comfy UI for image upscaling, which can be saved and shared for efficiency and consistency.

πŸ’‘XL Model

An XL model, as mentioned in the video, refers to a specific type of model designed for handling larger image sizes or more complex tasks. It is used in the context of image generation and upscaling to produce high-resolution outputs suitable for various applications.


Civit is a platform or source from which the creator downloads models for image processing. It likely hosts a variety of models for different purposes, including upscaling and generation, as demonstrated in the video.


An upscaler is a tool or model used to increase the size of an image without losing quality or introducing artifacts. In the video, the creator uses the '4X Ultra Sharp' as their preferred upscaler to enhance the resolution of generated images.

πŸ’‘Image Quality

Image quality refers to the clarity, sharpness, and overall visual fidelity of an image. The video emphasizes the importance of maintaining high image quality during the upscaling process to ensure that the final output is detailed and suitable for various uses, such as printing posters.

πŸ’‘Social Media

Social media refers to online platforms where users create and share content or participate in social networking. In the video, social media is mentioned as a context where users might want to share upscaled images, highlighting the practical applications of the techniques taught.

πŸ’‘DPM 2++

DPM 2++ is a term used in the context of the video to refer to a specific algorithm or setting within the image processing models. It is likely related to the Deep Photo Enhancer (DPE) or similar technology that improves image quality through machine learning, and is used to enhance the upscaling process.

πŸ’‘CFG Scale

CFG Scale is a term used in the context of the video to refer to a setting or parameter within the image processing workflow. It likely stands for a specific configuration or scaling factor that affects the output size and quality of the upscaled image.

πŸ’‘Image Loader

An image loader is a component or function within the software used to import images into the workspace for processing. In the video, the image loader is a step in the workflow that allows the creator to select and load an image for upscaling.


The video tutorial focuses on upscaling images using a comfortable user interface (Comfy UI) and creating large images.

The tutorial introduces a workflow for creating images using an XL model from Civit called New Dawn Excel, which is designed to work without a refiner.

An additional upscale model, 4X Ultra Sharp, is used from Upscale Wiki, which is the tutor's favorite upscaler.

The process involves installing the upscale model into Comfy UI and refreshing the screen to see the changes.

A starting image of 1024 by 1024 pixels is used, and the tutorial demonstrates how to generate an image using a prompt from Civit's examples.

The tutorial explains how to adjust settings such as the sampler and scheduler for the image generation process.

The video shows how to create a custom workflow in Comfy UI for upscaling images, including the use of an upscale model loader.

Upscaling works by breaking the image into tiles, upscaling each tile slightly, and then stitching them back together without losing quality or creating artifacts.

The tutorial demonstrates upscaling an image to a larger size suitable for printing, using the 4X Ultra Sharp model.

The video shows how to stack multiple upscalers to achieve even larger image sizes, if needed.

The tutor offers to save and share the workflows used in the video for easier learning and follow-along.

The final image produced is of extremely high resolution and quality, with a file size of 304 megabytes and a resolution of 16,384 by 16,384 pixels.

The video emphasizes the potential of AI-powered upscaling for photographers and artists to enhance their work.

The tutorial concludes by encouraging viewers to request the saving of workflows for future tutorials and to engage with the content by liking and subscribing.