Stable Diffusion 3.5 Large

Our flagship 8B parameter model, setting new standards in image generation with superior quality and unmatched prompt adherence.

Try Stable Diffusion 3.5 Large Online

Experience the power of our flagship model directly in your browser

Why Choose SD 3.5 Large

Unleash the full potential of Stable Diffusion 3.5

Superior Quality

8B parameters delivering exceptional image quality and detail with the most powerful model in the Stable Diffusion family.

Professional Results

Optimized for 1 megapixel resolution, perfect for professional content creation and commercial applications.

Advanced Understanding

Market-leading prompt adherence with enhanced text understanding through multiple advanced encoders.

Stable Diffusion 3.5 Large Specifications

Technical details and capabilities

Model Architecture

  • 8B parameters
  • MMDiT architecture
  • QK-normalization
  • Multiple text encoders:
    • OpenCLIP-ViT/G
    • CLIP-ViT/L
    • T5-xxl

Performance

  • 1 megapixel resolution
  • Superior prompt adherence
  • Professional-grade output
  • Enhanced detail preservation

Stable Diffusion 3.5 Large Integration Guide

Implement SD 3.5 Large in your projects

Python Implementation


import torch
from diffusers import StableDiffusion3Pipeline

pipe = StableDiffusion3Pipeline.from_pretrained(
    "stabilityai/stable-diffusion-3.5-large",
    torch_dtype=torch.bfloat16
)
pipe = pipe.to("cuda")

image = pipe(
    "your prompt here",
    num_inference_steps=28,
    guidance_scale=3.5
).images[0]

Implementation Steps

  1. Environment Setup

    Prepare your environment with required GPU drivers and dependencies.

  2. Model Installation

    Download and configure the SD 3.5 Large model.

  3. Resource Allocation

    Ensure sufficient GPU memory for optimal performance.

  4. Pipeline Configuration

    Set up the generation pipeline with recommended parameters.

Stable Diffusion 3.5 Large Best Practices

Optimize your results with SD 3.5 Large

Prompt Engineering

  • Be specific with descriptions
  • Include artistic style references
  • Use detailed composition guides
  • Specify lighting and atmosphere
  • Include technical parameters

Quality Optimization

  • Use recommended inference steps
  • Adjust guidance scale as needed
  • Optimize for 1MP resolution
  • Consider batch processing
  • Monitor resource usage

Professional Usage

  • Implement proper error handling
  • Set up automated pipelines
  • Use version control
  • Document configurations
  • Regular performance monitoring

Stable Diffusion 3.5 Large Performance Benchmarks

Real-world performance metrics

Generation Speed

Configuration Time (sec) VRAM Usage
RTX 4090 2.8s 12GB
RTX 4080 3.2s 12GB
RTX 3090 3.5s 12GB

Stable Diffusion 3.5 Large Advanced Capabilities

Explore the cutting-edge features of SD 3.5 Large

Enhanced Text Understanding

Triple encoder system combines OpenCLIP-ViT/G, CLIP-ViT/L, and T5-xxl for superior prompt comprehension and artistic interpretation.

Professional Image Quality

Delivers exceptional detail preservation, accurate color reproduction, and sophisticated compositional understanding at 1MP resolution.

Fine-tuning Capabilities

Advanced architecture supports efficient fine-tuning and customization for specific use cases and artistic styles.

Stable Diffusion 3.5 Large Professional Applications

Industry-specific solutions powered by SD 3.5 Large

Digital Art & Illustration

  • Professional-grade artwork creation
  • Concept art development
  • Character design
  • Background illustration
  • Style consistency maintenance

Marketing & Advertising

  • Campaign visual creation
  • Product visualization
  • Brand asset generation
  • Social media content
  • Promotional material design

Game Development

  • Asset creation pipeline
  • Rapid prototyping
  • Environment design
  • Texture generation
  • Visual style exploration

Stable Diffusion 3.5 Large Technical Deep Dive

Understanding the architecture and capabilities of SD 3.5 Large

Architecture Components

  • Advanced MMDiT Implementation
    • Enhanced transformer blocks
    • Improved cross-attention
    • Optimized feature extraction
    • Refined upsampling pathway
  • Text Encoder System
    • CLIP context length: 77 tokens
    • T5 context length: 256 tokens
    • Enhanced token embedding
    • Cross-modal alignment

Performance Optimizations

  • Memory Management
    • Gradient checkpointing
    • Attention optimization
    • Cache management
    • Resource allocation
  • Processing Pipeline
    • Parallel processing
    • Batch optimization
    • Pipeline scheduling
    • Load balancing

Stable Diffusion 3.5 Large Optimization Guide

Maximize performance and quality with SD 3.5 Large

Memory Optimization

  • Use BitsAndBytesConfig for 4-bit quantization
  • Enable gradient checkpointing
  • Implement model offloading
  • Optimize batch size
  • Monitor VRAM usage

Quality Optimization

  • Set optimal inference steps (25-30)
  • Adjust guidance scale (7.0-8.5)
  • Use appropriate scheduler
  • Enable VAE tiling
  • Implement noise offset

Pipeline Optimization

  • Implement proper error handling
  • Use attention slicing
  • Enable torch.compile
  • Optimize prompt processing
  • Cache model weights

Stable Diffusion 3.5 Large Community & Support

Join the SD 3.5 Large community

Development Resources

  • Official documentation
  • API reference guides
  • Code examples
  • Performance tips

Community Support

  • Discord community
  • GitHub discussions
  • Technical forums
  • Bug reporting

Enterprise Solutions

  • Custom licensing
  • Technical support
  • Integration assistance
  • Performance optimization

Stable Diffusion 3.5 Large FAQs

Common questions about Stable Diffusion 3.5 Large

What are the key differences between SD 3.5 Large and other Stable Diffusion 3.5 models?

SD 3.5 Large features 8B parameters, making it the most powerful in the family. It offers superior image quality and prompt adherence compared to Medium (2.5B parameters), while maintaining better quality but slower speed compared to Large Turbo.

What hardware is required to run SD 3.5 Large?

For optimal performance, we recommend a GPU with at least 12GB VRAM. The model can be run on lower VRAM configurations using optimization techniques like model quantization and CPU offloading, but this may impact generation speed.

How does licensing work for commercial use of SD 3.5 Large?

Under the Stability AI Community License, SD 3.5 Large is free for commercial use by organizations with annual revenue under $1M. For larger organizations, an Enterprise License is required - contact Stability AI for details.

What's the optimal image resolution for SD 3.5 Large?

SD 3.5 Large is optimized for 1 megapixel resolution (e.g., 1024x1024 or equivalent dimensions). While it can generate other resolutions, this is the sweet spot for quality and performance.

Can I fine-tune SD 3.5 Large for my specific use case?

Yes, SD 3.5 Large supports fine-tuning. The model features QK normalization which improves training stability. Detailed fine-tuning guides are available in the official documentation.

How does the image generation speed compare to previous versions?

SD 3.5 Large typically requires 25-30 inference steps for optimal quality. While not as fast as Large Turbo (4 steps), it provides superior image quality and better prompt adherence for professional applications.

What integration options are available for SD 3.5 Large?

You can integrate through various methods: Hugging Face Diffusers, ComfyUI, direct API access via Stability AI API, or self-hosting. Each option offers different levels of control and convenience.

How do I handle long or complex prompts with SD 3.5 Large?

SD 3.5 Large supports extended context lengths: 77 tokens for CLIP encoders and up to 256 tokens for T5 encoder. This allows for detailed prompts and complex descriptions while maintaining coherence.

What are the best practices for achieving consistent results?

Key factors include using detailed prompts, maintaining consistent guidance scale (recommended 7.0-8.5), using appropriate number of inference steps, and properly formatting your inputs. Documentation provides detailed guidelines.

Is SD 3.5 Large suitable for batch processing?

Yes, the model supports batch processing. However, batch size will depend on available VRAM. Using techniques like gradient checkpointing and attention optimization can help manage memory usage.

What safety measures are implemented in SD 3.5 Large?

The model includes comprehensive safety measures including filtered training data and content guidelines. Additional safety features can be implemented through API integrations and custom pipelines.

How can I optimize VRAM usage?

Techniques include using model quantization (4-bit or 8-bit), enabling attention slicing, implementing gradient checkpointing, and utilizing CPU offloading. These can reduce VRAM requirements significantly.

What support options are available?

Support is available through official documentation, community forums, GitHub discussions, and Discord channels. Enterprise users have access to additional support through Stability AI.

Can I use SD 3.5 Large offline?

Yes, you can download and run the model locally using frameworks like Diffusers or ComfyUI. This requires appropriate hardware and setup but offers maximum control and privacy.

How often is the model updated?

Stability AI regularly releases updates and improvements. Check the official repository and announcement channels for the latest versions and changelog information.

Start Creating with SD 3.5 Large

Experience professional-grade AI image generation today