Stability AI's open flagship image model — 1024px renders, fine-tuneable, runs anywhere.
Stable Diffusion XL (SDXL) is Stability AI's most capable open image model. Trained to render crisp 1024x1024 images with better composition, hands, and text than its predecessors, it became the default base model for the entire open-source image ecosystem — from ComfyUI to Automatic1111 to Fooocus. Because the weights are open, you can run it locally, fine-tune it on your own art, and own the outputs.
Who it's for: Indie creators, developers, and studios who want unlimited, private, customizable image generation without per-image API fees or content filters.
SDXL outputs native 1024x1024 with noticeably better composition and prompt adherence than SD 1.5.
Download and run it locally on a consumer GPU. No API key, no usage caps, no telemetry.
Chain the base model with the refiner step, or attach community LoRAs for styles, faces, and concepts.
Every major UI (ComfyUI, A1111, Fooocus, Invoke) supports SDXL out of the box.
If you value ownership, privacy, and unlimited generation, SDXL is the backbone of the open image world in 2026. Pair it with a good UI and it rivals closed tools at zero marginal cost.