Local Installation of Stable Diffusion 3.5

install stable diffuion 3.5 now

So, it’s finally here. Stable Diffusion 3.5 has been released by StabilityAI on October 22nd, 2024. After huge back clashes in the community on Stable Diffusion 3, they are back with the improved version.

Basically three model variants are on the open market:

Model Variant Parameters Resolution Range Key Features Ideal Use Cases
Stable Diffusion 3.5 Large (Base Model) 8 billion 1 megapixel
  • Most powerful model in the SD family
  • Superior image quality and prompt adherence
  • Supports professional-grade outputs
 Professional-grade, high-quality image generation at 1 megapixel resolution
Stable Diffusion 3.5 Large Turbo (Distilled model) 8 billion 1 megapixel
  • Distilled version of 3.5 Large
  • Faster generation in just 4 steps
  • Maintains high-quality images with exceptional prompt adherence
 Faster image generation with high quality for time-sensitive professional projects
Stable Diffusion 3.5 Medium ( release on Oct 29th) 2.5 billion 0.25 – 2 megapixels
  • Designed for consumer hardware
  • Features improved MMDiT-X architecture
  • Balanced quality with ease of customization
 Consumer-grade projects with flexibility and support for resolutions up to 2 megapixels

All the models weights are customizable in nature and can be used for free non-commercial and commercial usage up to $1M in annual revenue. The released models are under StabilityAI Community License. Interested AI Startups and Enterprises can checkout their license page for in-depth understanding.

Now we just dive into the installation in ComfyUI. For Automatic1111 and Forge its all in development stage. We will be updating it soon in the coming days.

Table of Contents

Installation

1. First you have to install ComfyUI into your machine if you are new to it. Old user need to update the ComfyUI by navigating to the Manager and select “Update ComfyUI” and “Update All“. 

stable diffusion 3.5 large

2. Download the model weight from StabilityAI’s Hugging face for Stable Diffusion 3.5 Large.

stable diffusion3.5 large turbo

Download the model weight from StabilityAI’s Hugging face for Stable Diffusion 3.5 Large turbo.

accept license and agreement

3. While downloading for the first time, you need to accept their license from their repository.

4. After downloading save them inside “ComfyUI/models/checkpoint” folder.

5. Now, download the clip models (clip_g.safetensors, clip_l.safetensors, and t5xxl_fp16.safetensors) from StabilityAI’s Hugging Face and save them inside “ComfyUI/models/clip” folder. 

As Stable Diffusion 3.5 uses the same clip models, you do not need to download if you are a Stable Diffusion 3 or Flux user.

6. Restart ComfyUI to take effect.

Workflow

1. Download both the workflows for Stable Diffusion3.5 Large and Stable Diffusion3.5 Large Turbo   from StabilityAI’s Hugging face.
2. Drag and drop to ComfyUI.
Recommended settings by Official StabilityAI:
For Stable Diffusion 3.5 Large
CFG:4.5
Steps: 28
Sampler: Euler, DPM++
For Stable Diffusion 3.5 Large turbo
CFG:0
Steps: 4
Sampler: Euler, DPM++
We have tested Stable Diffusion 3.5 Large with the recommended settings.
stable diffusion 3.5 generation

Here is the result. Frankly, the result is not cherry picked. This is the first generation we got. Not so bad.  
Prompt used: 
portrait , high quality creative photoshoot of a model ,  black dress, bluish  hair, red lipstick, wearing funky sunglasses,  Vogue style,  fashion photoshoot, professional makeup, uhd
Negative prompts are not required.
CFG: 4.5
Resolution: 1024 by 1024
Steps: 28
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