Stable Diffusion vs Stable Diffusion 3.5

Side-by-side comparison of pricing, features, and capabilities — 2026.

Tool A

Stable Diffusion by Stability AI is the foundational open-source AI image generation model. Run it locally, fine-tune it on your own images, or use it through hundreds of platforms — no restrictions, full control.

Try Stable Diffusion
VS
Tool B

Stability AI open-source image generation model

Try Stable Diffusion 3.5

Feature Comparison

FeatureStable DiffusionStable Diffusion 3.5
Pricing
Freemium
Freemium
Free Plan
Verified
Featured
Categories
Art Generation, Generative Art, Image Generation, Free, Developer Tools, Text to Image
Image Generation, Art Generation

Key Features Comparison

FeatureStable DiffusionStable Diffusion 3.5
Open-source model runs locally on consumer NVIDIA GPUs
Unlimited local generation with no API costs or content restrictions
Largest ecosystem of fine-tuned models and LoRA adapters
ControlNet for precise pose, depth, and composition control
Inpainting and outpainting for image editing and extension
SDXL and SD 3 for significantly improved quality and prompt adherence
Turbo and Lightning models for near-real-time generation
Powers Automatic1111, ComfyUI, and hundreds of downstream tools
Stability AI API for production deployments
Community of millions of users, models, and extensions
Multi-modal diffusion transformer
Improved text rendering
Open weights for self-hosting
Fine-tuning capability
High resolution output
API access

Use Cases Comparison

Use CaseStable DiffusionStable Diffusion 3.5
Running unlimited local image generation with no cost or censorship
Fine-tuning models on custom character or style datasets
Building AI image generation into products via API
Precise composition control with ControlNet and reference images
Creating consistent characters with trained LoRA models
Generating images in any style through community fine-tuned models
Research and experimentation with image generation techniques
Production image generation pipelines for content businesses
Open-source AI art generation
Building custom image apps
Fine-tuning for specific styles
Research and experimentation

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Stable Diffusion vs Stable Diffusion 3.5: Which Should You Choose?

Stable Diffusion is a freemium tool (verified by our team). Stable Diffusion by Stability AI is the foundational open-source AI image generation model. Run it locally, fine-tune it on your own images, or use it through hundreds of platforms — no restrictions, full control.

Stable Diffusion 3.5 is a freemium tool (verified by our team). Stability AI open-source image generation model

The right choice depends on your budget and specific needs. Both are listed in Nextool.ai's curated directory. See all Stable Diffusion alternatives or See all Stable Diffusion 3.5 alternatives.