Stable Diffusion 3.5
Full control, local deployment, endless customization
The only real choice if you need full data privacy, custom fine-tuning, or truly unlimited generation at cost of hardware. Not for non-technical users.
Stable Diffusion 3.5 is the latest in the open-source SD lineage. Run it locally for free, fine-tune it on your own dataset, and integrate it into any workflow without usage fees. Quality has improved significantly from SD 2.x. The tradeoff is setup complexity — you need hardware (or cloud GPU) and technical knowledge.
Completely free and open-source
Full customization via fine-tuning and LoRA
Thousands of community models on Civitai
Local deployment for data privacy
Fastest inference when self-hosted on good GPU
Requires technical knowledge to set up
Needs GPU hardware (or pay for cloud)
Base model quality lags behind commercial models
Results vary wildly depending on settings
"Portrait of a young woman with freckles, soft studio lighting, 85mm lens, detailed skin texture, photorealistic"
"Fantasy dragon perched on a cliff, dramatic storm clouds, epic scale, cinematic lighting"
Requires GPU (RTX 3080+ recommended)
Official cloud API
Community hosted versions