Stable Diffusion 3 on ComfyUI: Tutorial & My Unexpected Disappointment
TLDRStability AI has released Stable Diffusion 3, a cutting-edge image generation model that excels in text-to-image translation. Despite its potential, the model's non-commercial license and resource-intensive requirements might be a letdown for some. The tutorial covers how to set up the model in ComfyUI, highlighting its three variants and the importance of pre-trained text encoders for high-quality image generation. However, the creator expresses disappointment due to the limitations and performance compared to expectations.
Takeaways
- 🚀 Stability AI has released their advanced image generation model, Stable Diffusion 3 Medium.
- 📚 The model is called a Multimodal Diffusion Transformer (MMD), which excels at creating high-quality images from text descriptions.
- 📈 It claims significant improvements in image quality, typography understanding, complex prompts, and resource efficiency.
- 🔑 Stable Diffusion 3 Medium is released under a non-commercial research license, requiring a separate license for commercial use.
- 🎨 The model can be used for creating artworks, design projects, educational tools, and research in generative models, but not for real representations of people or events.
- 📦 There are three variants of the model catering to different user needs: one with core weights, one balanced with an FP8 T5 XXL text encoder, and one for minimal resource usage.
- 📚 The model uses three pre-trained text encoders: CLIP ViT-g, CLIP ViT-l, and T5 XXL, to interpret and generate images from text effectively.
- 💾 The models should be placed in the Comfy UI directory inside the models folder, alongside SD 1.5 and SdxL models.
- 🔄 Update Comfy UI to the latest version to ensure compatibility with the new model.
- 📝 Load the example workflows in Comfy UI and configure the nodes for the model variant and text encoders.
- 🕒 The model's performance was tested on an RTX 3060 with 12 GB VRAM, generating images in about 30 seconds, with a minimum requirement of 8 GB VRAM.
- 😔 Despite high expectations, the non-commercial license may limit the model's tuning and customization by the community.
Q & A
What is Stable Diffusion 3 Medium?
-Stable Diffusion 3 Medium is Stability AI's most advanced image generation model, also known as a multimodal diffusion Transformer (MMD), which excels at converting text descriptions into high-quality images.
What improvements does Stable Diffusion 3 Medium claim to have over its predecessors?
-Stable Diffusion 3 Medium claims significant improvements in image quality, typography understanding, handling complex prompts, and it is more efficient with resources.
Under what license is Stable Diffusion 3 Medium released?
-Stable Diffusion 3 Medium is released under the Stability Non-Commercial Research Community License, which means it's free for non-commercial purposes like academic research but requires a separate commercial license for commercial use.
What are the three different packaging variants of the Stable Diffusion 3 Medium model?
-The three variants are: 1) sd3 medium.safe tensors, which includes the core MMD and VAE weights but no text encoders; 2) sd3 medium.incl Clips T5 XL fp8 do safe tensors, which includes all necessary weights with a balance between quality and resource efficiency; and 3) sd3 medium.incl clips, which is designed for minimal resource usage but sacrifices some performance quality due to the absence of the T5 XXL text encoder.
What are the three fixed pre-trained text encoders utilized by Stable Diffusion 3 Medium?
-The three fixed pre-trained text encoders are CLIP ViT-g, CLIP ViT-l, and T5 XXL, which work together to interpret and translate text descriptions into high-quality images.
How should the Stable Diffusion 3 Medium models be placed in the Comfy UI directory?
-The models should be placed in the Comfy UI directory inside the 'models' folder, and then inside the 'checkpoints' folder, which is the same location where SD 1.5 and SdxL models are usually stored.
What is the minimum requirement for video RAM (VRAM) to generate images with Stable Diffusion 3 Medium?
-The minimum requirement for VRAM to generate images with Stable Diffusion 3 Medium is 8 GB.
Why might some users be disappointed with Stable Diffusion 3 Medium despite the hype?
-Some users might be disappointed due to the non-commercial license restricting fine tuners from working on it and the fact that the current SdxL models already look much better, leading to less perceived improvement.
What does the tutorial suggest for users who prefer flexibility in integrating their own text encoders?
-The tutorial suggests using the first variant, sd3 medium.safe tensors, which includes the core MMD and VAE weights but does not come with any text encoders, allowing for flexibility in integration.
What is the recommended next step after downloading the models and updating Comfy UI?
-The recommended next step is to load the SD3 example workflows, starting with the first JSON file to understand the basic workflow in the load checkpoint node.
What is the narrator's current preference for image generation models after testing Stable Diffusion 3 Medium?
-The narrator prefers to stick with SD 1.5 and SdxL for now, due to the high expectations not being fully met and the limitations imposed by the non-commercial license.
Outlines
🌟 Introduction to Stable Diffusion 3 Medium
The video introduces Stable Diffusion 3 Medium, a new image generation model by Stability AI. It highlights the model's capabilities and the mixed reception it has received, emphasizing that despite improvements in image quality, typography, and resource efficiency, there are notable limitations and challenges, including the non-commercial license restricting its use for commercial purposes.
🚀 Variants of Stable Diffusion 3 Medium
Stable Diffusion 3 Medium comes in three variants: sd3 medium.safe tensors, sd3 medium incl Clips T5 XL fp8 safe tensors, and sd3 medium incl clips.safe tensors. Each variant offers different features and resource efficiencies, catering to various user needs from those integrating their own text encoders to those requiring minimal resource usage. The video explains where to place these models in the ComfyUI directory and highlights the differences among them.
📚 Understanding Text Encoders in Stable Diffusion 3 Medium
The model uses three pre-trained text encoders: Clip ViTG, Clip ViTL, and T5 XXL, which convert text prompts into representations for image generation. Clip ViTG is paired with text descriptions to generate images based on input, Clip ViTL handles complex and detailed image generation tasks, and T5 XXL processes and understands nuanced text prompts. Users must download these models and update ComfyUI to utilize them effectively.
🔧 Setting Up and Testing SD3 Medium
The video provides a step-by-step guide to loading and setting up example workflows for SD3 Medium in ComfyUI. It details the process of loading models, setting text encoders, and configuring image generation parameters. The demonstration shows that with an RTX 3060 and 12GB VRAM, generating an image takes about 30 seconds, with a minimum requirement of 8GB VRAM.
🤔 Evaluation and Future Plans
Despite high expectations, the video notes that SD3 Medium's performance may not meet the standards set by existing SDXL models. The non-commercial license limits fine-tuning opportunities, making SD1.5 and SDXL preferable for some users. The creator announces plans to stick with these models for future videos and an upcoming digital AI model course, providing more details in the video description.
Mindmap
Keywords
💡Stable Diffusion 3
💡ComfyUI
💡Multimodal Diffusion Transformer (MMD)
💡Non-commercial Research Community License
💡Weight Models
💡Text Encoders
💡CLIP
💡T5 XXL
💡Sampler
💡CFG
💡Fine Tuners
Highlights
Stability AI has released their advanced image generation model, Stable Diffusion 3 Medium.
The model is a multimodal diffusion Transformer, excelling at turning text into high-quality images.
Stable Diffusion 3 Medium claims improved performance in image quality, typography understanding, and complex prompts.
The model is released under a non-commercial research license, requiring a separate license for commercial use.
It can be used for creating artworks, design projects, educational tools, and research in generative models.
The model is not intended for creating representations of real people or events.
Three different weight models are available to cater to diverse user needs.
SD3 Medium includes core weights but no text encoders for flexibility.
SD3 Medium incl Clips T5 XL fp8 balances quality and resource efficiency.
SD3 Medium incl clips is designed for minimal resource usage with some performance trade-off.
Models should be placed in the Comfy UI directory for compatibility.
Three fixed pre-trained text encoders are utilized for converting text prompts into image representations.
CLIP ViT-g and CLIP ViT-l are used for understanding and generating images from text.
T5 XXL is a text-to-text Transformer model enhancing the accuracy and quality of generated images.
An update to Comfy UI is required to use Stable Diffusion 3 Medium.
Loading the model involves selecting the appropriate weights and text encoders.
The presenter experienced disappointment with the model's performance and licensing restrictions.
The presenter plans to continue using SD 1.5 and SDXL models for future projects.
The presenter suggests checking a link in the description for more information on the model.
