While nai.ckpt was revolutionary at its release, newer models hosted on platforms like Civitai often offer better performance and safety:
: The standard nai.ckpt file is approximately 4.27 GB . It is often distributed alongside a specialized VAE (Variational Autoencoder) file, which is necessary to prevent generated images from looking washed out or gray. How to Use nai.ckpt nai.ckpt
To run this model locally, you typically use a tool like the AUTOMATIC1111 WebUI . While nai
: Place the .ckpt file in the models/Stable-diffusion directory of your installation. : Place the
: This model responds exceptionally well to Danbooru-style tags (e.g., 1girl, solo, masterpiece ) rather than long natural language sentences. Modern Alternatives
: If you want to use it for modifying existing images, rename the file to end with inpainting.ckpt (e.g., nai-inpainting.ckpt ) so the UI recognizes its specialized function.