Stable Diffusion 3 - How to use it today! Easy Guide for ComfyUI

Olivio Sarikas
18 Apr 202416:13

TLDRThe video provides a guide on how to use Stable Diffusion 3, a new AI image generation tool. It starts with a comparison between Stable Diffusion 3 and Mid Journey SXL, showcasing various image results generated by both. The narrator praises Stable Diffusion 3 for its aesthetic closeness to Mid Journey, especially in terms of color and composition. The video also highlights the model's ability to handle text and complex prompts, although it notes some issues with emotional expressions and specific styles like anime. The guide then explains how to install and use Stable Diffusion 3 through the Stability API, including creating an account, obtaining API keys, and adjusting settings within ComfyUI. The summary also touches on the cost of using the tool and the process of translating the GitHub instructions from Chinese to English for easier setup.


  • 🎉 Stable Diffusion 3 has been released and offers new capabilities for image generation.
  • 📈 A comparison between Midjourney SXL and Stable Diffusion 3 shows that Stable Diffusion 3 is closer to the aesthetic and artfulness of Midjourney.
  • 🖼️ The generated images by Stable Diffusion 3 are noted for their cinematic and beautiful qualities.
  • 📝 The script highlights that Stable Diffusion 3 has issues with wider format images, such as 16x9, which can affect the composition.
  • 🐺 A favorite image generated is a wolf sitting in the sunset, which showcases the model's ability to create artful compositions.
  • 🐯 Stable Diffusion 3 has demonstrated a surprising ability to handle text, even when words are on top of each other.
  • 🧙‍♂️ The model struggles with highly detailed prompts, such as 'anime style' or specific character emotional expressions, and may require more detailed prompts to improve results.
  • 👗 For fashion-related prompts, Stable Diffusion 3 and SXL both produced high-quality and detailed images.
  • 🔍 The importance of adjusting the prompt for better results is emphasized, as seen in the 'girls with big guns' example.
  • 🌟 Stable Diffusion 3's results are variable, with some images showing excellent detail and others lacking certain elements, such as the wizard spell casting in the 'wizard on the hill' prompt.
  • 💻 To use Stable Diffusion 3, one must have an account with Stability, create an API key, and follow a straightforward installation process detailed in the script.

Q & A

  • What is the main topic of the video?

    -The main topic of the video is a guide on how to use Stable Diffusion 3, a new model for image generation, and a comparison of its results with those from Mid Journey SXL.

  • What is the significance of the 'prompt' in image generation using Stable Diffusion 3?

    -The 'prompt' is a crucial element in image generation as it provides the model with a description or concept to generate an image from. It determines the theme, style, and specific elements that should be included in the generated image.

  • How does the video compare the results of Stable Diffusion 3 with Mid Journey SXL?

    -The video compares the results by showing side-by-side images generated from the same prompts using both models. It discusses the aesthetic qualities, color composition, and artistic style of the images produced by each model.

  • What are the costs associated with using Stable Diffusion 3?

    -Stable Diffusion 3 costs 6.5 credits per image for the standard model and 4 credits per image for the Turbo model. Users also have the option to use a less expensive model called SDXL1, which costs between 0.2 to 0.6 credits per image.

  • How does one obtain and use the API key for Stable Diffusion 3?

    -To obtain the API key, one must create an account on the Stability AI website, navigate to the API Keys section, and create a new API key. This key is then used within the ComfyUI environment by adding it to the config JSON file for the Stable Diffusion 3 API.

  • What are the steps to install Stable Diffusion 3 in ComfyUI?

    -The installation steps include cloning the GitHub project into the ComfyUI custom notes folder, modifying the config JSON file with the API key, and adding the Stable Diffusion 3 note to the ComfyUI environment. The note is then connected to a save image node for use.

  • What are the different modes available in Stable Diffusion 3 for image generation?

    -Stable Diffusion 3 offers two modes for image generation: text-to-image and image-to-image. The former generates images from textual descriptions, while the latter transforms existing images based on a given prompt.

  • How does the video describe the quality of the images generated by Stable Diffusion 3?

    -The video describes the images generated by Stable Diffusion 3 as generally high quality, with good color composition and aesthetic appeal. However, it also notes some issues such as awkward compositions and occasional errors in the depiction of certain elements.

  • What are the limitations mentioned in the video regarding Stable Diffusion 3's handling of text and complex prompts?

    -The video mentions that Stable Diffusion 3 sometimes struggles with text, as seen in the tiger image where the text is not as clear. It also notes that for complex prompts, such as generating cartoonish cat expressions, the model may require more detailed prompts to produce the desired results.

  • What does the video suggest for users who want to use Stable Diffusion 3 for image-to-image rendering?

    -The video suggests that for image-to-image rendering, users should set the strength to a lower value than the default to take the input image into account more effectively.

  • How does the video guide viewers on how to adjust the settings within the Stable Diffusion 3 note in ComfyUI?

    -The video guides viewers to adjust settings such as the positive and negative prompts, aspect ratio, mode (text-to-image or image-to-image), model selection (SD3 or SD3 Turbo), and control settings like seed and strength within the Stable Diffusion 3 note.



🚀 Introduction to Stable Fusion 3 and Comparisons

The video begins with an introduction to Stable Fusion 3, a new image-generating tool. The host expresses enthusiasm and provides a brief overview of how to access and use the tool. They also compare Stable Fusion 3 with Mid Journey SXL, another image-generating model, by showcasing a series of generated images. The comparison highlights the aesthetic and artfulness of each model, noting that Stable Fusion 3 has made strides in achieving a more cinematic and beautiful output, similar to Mid Journey. The host discusses the composition, color, and style of the images, and provides a critique of each model's performance based on the results.


🎨 Artistic Comparisons and Detailed Image Analysis

The second paragraph delves deeper into the artistic qualities of the generated images. The host presents a variety of scenes created by both Stable Fusion 3 and the Mid Journey model, focusing on the aesthetic and emotional expressions in the images. They discuss the adherence to color rules, character interactions, and the overall composition of the images. The video also touches on the challenges faced by both models, such as handling text and complex prompts. The host shares their personal favorites and provides a critique on the effectiveness of each model in capturing the desired artistic style and emotional nuances.


📚 Installing and Using Stable Fusion 3

The third paragraph provides a step-by-step guide on how to install and use Stable Fusion 3. The host explains the process of creating an account with Stability, obtaining an API key, and purchasing credits for image generation. They also address the language barrier by suggesting the use of a translation tool to understand the instructions on the GitHub page. The host guides viewers through the process of cloning the GitHub project, configuring the API key, and setting up the necessary nodes in the Comfy UI folder. They also mention the different models available and their respective costs per image.


📝 Configuring Stable Fusion 3 and Viewer Engagement

The final paragraph focuses on the configuration settings for Stable Fusion 3 within the Comfy UI interface. The host outlines the various settings available, such as positive and negative prompts, aspect ratio, mode, model selection, and control settings. They also discuss the importance of the 'after generated' setting and the 'strength' parameter, especially for image-to-image rendering. The video concludes with a call to action for viewers to share their thoughts on Stable Fusion 3, subscribe to the channel for more content, and engage with the video through likes and comments.



💡Stable Diffusion 3

Stable Diffusion 3 is a new model in the field of AI-generated images. It is designed to create high-quality visuals based on textual prompts. In the video, it is compared with other models like Mid Journey SXL to showcase its capabilities in producing images that are cinematic, artful, and detailed. The video demonstrates how it can generate images that are aesthetically close to those of Mid Journey, with good use of colors and composition.


ComfyUI is a user interface where users can interact with AI models like Stable Diffusion 3. It is mentioned in the script as the platform where the Stable Diffusion 3 model is being used to generate images. The video provides a guide on how to install and use Stable Diffusion 3 within ComfyUI, making it accessible for users to create their own AI-generated images.


A prompt is a textual description or request given to an AI model to generate a specific type of image. In the context of the video, prompts are used to guide the Stable Diffusion 3 model in creating various scenes like a sci-fi movie scene or a character with emotional expressions. The effectiveness of the model is judged by how well it interprets and visualizes these prompts.

💡API Key

An API Key is a unique identifier used to authenticate a user with an application programming interface (API). In the video, it is mentioned as a requirement for using the Stability API to run Stable Diffusion 3. Users need to create an account with Stability, generate an API key, and use it in their ComfyUI setup to access the Stable Diffusion 3 model.

💡Image Resolution

Image resolution refers to the dimensions of an image, typically measured in pixels. The video compares the image resolution of Stable Diffusion 3 with that of other models, noting that the same resolution is used for a fair comparison. High resolution can lead to more detailed and clearer images.


Aesthetic refers to the visual or artistic appeal of an image. The video discusses how Stable Diffusion 3 is praised for its closer approach to the aesthetic and artfulness of Mid Journey, which is known for its cinematic and beautiful image generation. The term is used to describe the quality of the images produced by the model.

💡Text Integration

Text integration is the ability of an AI model to incorporate text into the generated image accurately. The video highlights that Stable Diffusion 3 successfully includes text in the images, such as 'I love you so much' in a pixel-style tiger image, demonstrating its capability to understand and visualize textual elements within the context of the image.


Photorealism is the quality of an image that makes it appear like a photograph. The video mentions that some of the images generated by Stable Diffusion 3 have a more photographic style, particularly when compared to the more artistic or painterly styles of other models. This is evident in the wolf sitting in the sunset image, which looks very lifelike and detailed.

💡Emotional Expressions

Emotional expressions refer to the depiction of emotions through facial features or body language in an image. The video discusses the ability of Stable Diffusion 3 to generate characters with a range of emotional expressions, although it notes that the model sometimes struggles with this, producing characters that look similar but lack distinct emotions.

💡Installation Guide

An installation guide provides step-by-step instructions on how to set up and use a software or application. The video offers a straightforward installation guide for Stable Diffusion 3 within ComfyUI. It covers creating an API key, cloning the GitHub project, and configuring the settings within ComfyUI to use the Stable Diffusion 3 model.

💡Image-to-Image Rendering

Image-to-image rendering is a process where an AI model uses an existing image as a base to create a new image, often with modifications or enhancements. The video touches on this feature, noting that while it is intended to be used with Stable Diffusion 3, it does not currently work as expected within ComfyUI.


Stable Diffusion 3 has arrived, bringing new features and improvements to the AI imaging model.

A comparison between MidJourney and Stable Diffusion 3 showcases the advancements in cinematic and aesthetic imagery.

Stable Diffusion 3 promises a closer match to the aesthetic and artfulness of MidJourney, with improved color composition and imagery.

The two-color rule is effectively followed in Stable Diffusion 3, creating visually striking images with a strong focus on character interaction.

Stable Diffusion 3 demonstrates its ability to generate artful compositions, even with challenging subjects like wolves in a sunset scene.

The model handles text integration surprisingly well, with correct placement and readability even when words overlap.

Stable Diffusion 3's results show a good understanding of artistic styles, such as pixel art, despite not being trained on pixel images.

The detailed and expressive portrayal of a poodle in a fashion shoot demonstrates the model's versatility and attention to style.

Stable Diffusion 3 sometimes struggles with emotional expressions in characters, indicating a potential area for improvement.

The model exhibits a strong performance in rendering complex scenes, such as girls with big guns, with impressive design and composition.

Stable Diffusion 3's handling of the 'wizard on the hill' prompt shows its capability to incorporate text and create a narrative in the imagery.

The installation process for Stable Diffusion 3 is straightforward, requiring an account with Stability AI and a few simple steps.

Users can adjust the prompts and settings in Stable Diffusion 3 to achieve desired results, such as detailed anime styles or dynamic poses.

The pricing for Stable Diffusion 3 varies depending on the model used, with the standard model being more expensive than the SXL model.

The GitHub page for Stable Diffusion 3's installation may initially be in Chinese, but can be easily translated to English for clear instructions.

Once installed, users can customize Stable Diffusion 3 within ComfyUI by adjusting settings such as prompts, aspect ratio, and model selection.

Stable Diffusion 3 offers a new level of creativity and detail in AI-generated images, pushing the boundaries of what's possible in AI art.