SDXL Lightning is SUPER FAST! Only 2 Steps to Render!

Olivio Sarikas
21 Feb 202406:24

TLDRIn this video, the presenter introduces SDXL Lightning, a tool that can render SDXL images with remarkable speed, requiring only two steps. The video provides a basic workflow for using SDXL Lightning and mentions that patrons have access to an enhanced workflow with additional features. The presenter guides viewers through downloading and implementing the workflow, as well as the necessary Lura files. They also discuss the importance of using a specific sampler and scheduler for optimal results. The video showcases the process of creating a 1024x1024 image and emphasizes the effectiveness of SDXL Lightning for images with a prominent subject. The presenter also demonstrates how to upscale the image using the Ultimate SD Upscale method, achieving a detailed 2048x2048 image in just 20 seconds. The video concludes with a teaser for a more comprehensive workflow to be released for patrons and an invitation for viewers to engage with the content.


  • ๐ŸŒŸ SDXL Lightning is a tool that can render SDXL images extremely quickly, in just two steps.
  • ๐ŸŽ‰ There's a basic workflow available for everyone, while Patreon supporters get an enhanced version with additional features.
  • ๐Ÿ“„ To use the basic workflow, you need to download a specific file and save it with a .json extension on your hard drive.
  • ๐Ÿ“ You also need to download Lura files from the SDXL Lightning page and place them in your designated folder.
  • ๐Ÿ” The Lura files are small in size, making them easy to manage and download.
  • ๐Ÿ”ง The four-step Lura file is recommended for a balance between quality and speed.
  • ๐Ÿš€ The process involves using a workflow in a tool like Comfy UI, which can recognize Lura files.
  • ๐Ÿ“ˆ Ultimate upscaler is used for further enhancing the image quality without altering the content significantly.
  • ๐Ÿ” The upscaling process works best with images that are 1024x1024 in size.
  • ๐Ÿš€ The final rendered image is fast to produce, although it may lack some sharpness due to the low step and CFG count.
  • ๐Ÿ” The tool is particularly effective for images where the subject occupies a large portion of the frame.

Q & A

  • What is the main topic of the video?

    -The main topic of the video is about SDXL Lightning, a method to render SDXL images quickly using only two steps.

  • What is included in the basic workflow?

    -The basic workflow includes steps to download and use a workflow file and Lura files for rendering SDXL images.

  • How can one access the more advanced workflow?

    -An advanced or 'flashed out' workflow is available to the video creator's Patron supporters.

  • What is the file format that needs to be downloaded and saved?

    -The file format that needs to be downloaded and saved is a JSON file.

  • What is the role of the Lura files in the process?

    -Lura files are used as models in the rendering process and are downloaded into the user's Lora folder for the software to utilize.

  • Why are the Lura files important?

    -Lura files are important because they provide the necessary model data for the rendering process and are used by the software to generate the SDXL images.

  • What is the recommended image size to use with the current process?

    -The recommended image size to use with the current process is 1024 by 1024 pixels.

  • What is the benefit of using the Ultimate SD upscaler?

    -The Ultimate SD upscaler allows for upscaling of the image without significantly altering the content, resulting in a detailed and high-quality image.

  • How does the presenter upscale the final image?

    -The presenter upscales the final image using the Ultimate SD upscaler model with settings that include four steps, CFG scale, and a uler sampler.

  • What is the result of upscaling with the Ultimate SD upscaler?

    -The result is a detailed 2048x2048 SDXL image that renders quickly on a 3080ti GPU.

  • What is the future expectation regarding the SDXL Lightning process?

    -The expectation is that future refinements and more specialized models will improve the process, allowing for better details and image quality.

  • When will the fleshed-out workflow be available?

    -The fleshed-out workflow will be uploaded the day after the video was published, specifically for the video creator's Patreon supporters.



๐Ÿš€ Introduction to SDXL Lightning and Workflow Overview

The speaker begins by greeting the audience and introducing SDXL Lightning, a tool for rendering SDXL images. They explain that while a one-step process is in development, they will demonstrate a two-step process using a basic workflow. The speaker mentions an enhanced workflow available to Patron supporters, which includes additional features and a detailed video explanation. The video then guides viewers on how to download and use the workflow, navigate the Hugging Face page, and access the necessary Lura files. The speaker also discusses the process of saving the file, placing it in the correct directory, and using it with the comu I tool. They touch on the use of different step counts for the Lura model and the importance of the sgm uniform scheduler for the process. The speaker concludes by emphasizing the speed of image creation and the potential for future improvements with refined models.


๐ŸŽจ Upscaling SDXL Images with Ultimate SD Upscale

The speaker discusses the use of the Ultimate SD Upscale for enhancing SDXL images without altering their content significantly. They detail the process of using the upscaler model, specifically the 4X n mkd supercale SP,178,000 settings. The speaker highlights the compatibility of the Ultimate SD Upscale with the same settings used in the previous process, emphasizing the four-step CFG, scale, and uler sampler, along with the sgm uniform schedule. The video demonstrates the impressive results of upscaling to a detailed 2048x2048 SDXL image, which is rendered quickly on a 3080ti. The speaker encourages viewers to experiment with the Lura tool and expresses excitement about sharing a more comprehensive workflow with Patreon supporters. The video ends with a call to action for likes and a farewell message, inviting viewers to stay tuned for future content.



๐Ÿ’กSDXL Lightning

SDXL Lightning is a method or tool that is described as 'SUPER FAST' in the title, suggesting it is a high-speed rendering process for creating SDXL (Stable Diffusion XL) images. It is the main subject of the video, as the speaker is discussing its capabilities and how to use it effectively. The term is used to introduce the video's focus on a rapid image rendering technique.


A workflow in the context of this video refers to a sequence of steps or processes involved in using the SDXL Lightning tool to render images. The basic workflow is included for viewers to follow, while Patreon supporters get an enhanced version with more controls and features. The workflow is crucial for understanding how to operate the tool and achieve the desired results.

๐Ÿ’กHugging Face

Hugging Face is mentioned as a platform where the viewer can find more information about the SDXL Lightning tool. It is likely a website or service that hosts or provides access to the technology discussed in the video. The mention of Hugging Face establishes a resource for further exploration of the technology.


ControlNet is mentioned as a component of the more advanced workflow available to Patreon supporters. It is likely a feature or tool within the workflow that provides additional control over the image rendering process. The term is used to highlight the enhanced capabilities available to supporters, suggesting a level of customization or fine-tuning.

๐Ÿ’กIPA Face Detailer

The IPA Face Detailer is another feature mentioned as part of the Patreon supporters' workflow. It implies a tool or function that is used to enhance or refine the details of faces in the rendered images. This keyword is significant as it points to a specific area of improvement that the advanced workflow offers.


An upscaler in this video script refers to a tool or process used to increase the resolution or detail of an image without losing quality. The speaker mentions using an 'ultimate upscaler' to achieve better results with the rendered images. The term is central to the theme of enhancing image quality through upscaling.


LURA, in the context of this video, seems to refer to a specific model or file type used in the rendering process. The speaker discusses downloading LURA files and using them in the workflow, indicating that they are essential for the functioning of the SDXL Lightning tool. The mention of LURA files provides insight into the technical requirements for using the tool.


Auto-GPT is mentioned as a platform that may not be compatible with certain file types like .pth, which are used in the workflow. The speaker discusses saving the workflow as a .json file to make it accessible to Auto-GPT. This keyword is important as it relates to the technical setup and compatibility issues that users may encounter.


A checkpoint in this video is a reference to a specific version or state of a model used in the rendering process. The speaker mentions using 'Chuggernaut XL version 8' as a checkpoint, indicating that it is a pre-trained model that can be loaded for use. The term checkpoint is significant as it relates to the starting point for the image rendering process.

๐Ÿ’กCFG Count

CFG Count likely refers to a configuration setting or parameter within the rendering process that affects the quality or detail of the output image. The speaker mentions that a low CFG count results in a less sharp or crisp image, suggesting that it is a factor in the image's final appearance. This keyword is relevant as it ties into the technical aspects of image rendering.


A scheduler in the context of this video is a component of the rendering process that determines the sequence or timing of operations. The speaker mentions 'sgm uniform' as a type of scheduler, which is important for the format of the rendering process. The term scheduler is significant as it relates to the efficiency and order of operations within the rendering workflow.


SDXL Lightning is a method that can render SDXL images in only two steps.

A basic workflow is included, but Patron supporters receive an enhanced version with additional features.

The process can be further simplified to one step, although it is not yet functional.

The Hugging Face page is where users can download and utilize the workflow.

The Lura files are small in size, making them easy to download and manage.

The four-step Lura file is recommended for better quality results.

The Lura file needs to be placed in a specific folder for the Automatic 1111 to recognize it.

The workflow includes an Ultimate Upscaler for improved image quality.

The Ultimate SD upscaler can be used with the same settings as the Lura model for consistent results.

The method works best with images where the subject occupies a large portion of the frame.

The process is expected to improve with future model refinements.

The video demonstrates how to upscale images without significantly altering their content.

The 4X n mkd upscaler model is used for a 2048x2048 SDXL image.

The final image renders quickly on a 3080ti GPU in about 20 seconds.

The presenter will upload a more detailed workflow for Patreon supporters in the future.

The video provides a guide on how to use the SDXL Lightning method effectively.

The presenter encourages viewers to experiment with the Lura file for fun and creative results.

The video concludes with a call to action for viewers to like the video and engage with other content.