F99.ckpt [Verified 2026]

As a .ckpt file, it is designed for use in interfaces such as Automatic1111's Stable Diffusion WebUI or ComfyUI . Technical Note

Models like this are typically optimized to handle specific aesthetic tags and intricate details common in modern anime art styles that base models often struggle with. f99.ckpt

.ckpt (PyTorch Checkpoint), which is the standard format used by early versions of Stable Diffusion (v1.4/v1.5) for distributing model weights. As a .ckpt file