Stable Diffusion 3.5

Stable Diffusion 3.5 is an open-weight image generation model from Stability AI that runs even on consumer GPUs and can be freely customized. Because it is open source and you can self-host it, it suits developers and researchers who want to run the model in their own environment and even fine-tune it. It fits a hands-on workflow more than a casual user who just wants fast results from a few clicks.

Its strengths are openness and value. You download the weights and run them yourself, so hosting and fine-tuning are unrestricted, and a huge community ecosystem backs it up. Output comes without watermarks.

The limits are difficulty and licensing. An ease-of-use score of just 58 reflects the effort of building and configuring the environment, and there is essentially no Korean support, a burden for non-English users. Commercial use is free only under $1M in annual revenue; above that, a separate license is required.

In short, for developers and researchers who want to self-host and customize the model, it is an outstanding choice for value and freedom. If you instead want high-quality images straight from a browser with no setup, or Korean support matters to you, another tool is worth a look.