UPSTREAM PR #1053: feat: Longcat-Image / Longcat-Image-Edit support

[loci-dev]

Note

Source pull request: leejet/stable-diffusion.cpp#1053

for leejet/stable-diffusion.cpp#1052

Seems to only work with --clip-on-cpu, at least on HIP (ROCm) backends.

sd-cli.exe --diffusion-model ..\ComfyUI\models\unet\LongCat-Image-Q8_0.gguf --vae ..\ComfyUI\models\vae\flux\ae.safetensors --cfg-scale 4.0 --sampling-method euler -v --clip-on-cpu -p "A cinematic, melancholic photograph of a solitary hooded figure walking through a sprawling, rain-slicked metropolis at night. The city lights are a chaotic blur of neon orange and cool blue, reflecting on the wet asphalt. The scene evokes a sense of being a single component in a vast machine. Superimposed over the image in a sleek, modern, slightly glitched font is the philosophical quote: \"THE CITY IS A CIRCUIT BOARD, AND I AM A LONG CAT.\" -- moody, atmospheric, profound, dark academic" --preview proj --steps 20 --qwen2vl ..\ComfyUI\models\clip\Qwen2.5-VL-7B-Instruct.Q4_K_M.gguf --diffusion-fa --color -W 1024 -H 1024

Test models (converted to bfl format) can be found there:

• https://huggingface.co/stduhpf/LongCat-Image-gguf/tree/main
• https://huggingface.co/stduhpf/LongCat-Image-Edit-gguf/tree/main
• https://huggingface.co/stduhpf/LongCat-Image-Dev-gguf/tree/main

Inference for models in diffusers format seem to be still broken

I recommend using the smoothstep scheduler with euler sampling method.