[Bug] cannot open z-image.

[bendyfan11]

Git commit

n/a, downloaded vulkan build

Operating System & Version

Windows 10

GGML backends

Vulkan

Command-line arguments used

sd.exe -m D:\models\img\z_img_turbo-Q4_k.gguf --vae D:\models\img\vae\ae.safetensors --llm D:\models\img\Qwen3-4B-Instruct-2507-Q4_K_M.gguf --diffusion-fa

Steps to reproduce

attempt to load Z image

What you expected to happen

the model loads

What actually happened

model does not load.

Logs / error messages / stack trace

[INFO ] stable-diffusion.cpp:228 - loading model from 'D:\models\img\z_img_turbo-Q4_k.gguf' [WARN ] model.cpp:379 - unknown format D:\models\img\z_img_turbo-Q4_k.gguf [ERROR] stable-diffusion.cpp:230 - init model loader from file failed: 'D:\models\img\z_img_turbo-Q4_k.gguf' [INFO ] stable-diffusion.cpp:282 - loading llm from 'D:\models\img\Qwen3-4B-Instruct-2507-Q4_K_M.gguf' [INFO ] model.cpp:370 - load D:\models\img\Qwen3-4B-Instruct-2507-Q4_K_M.gguf using gguf format [INFO ] stable-diffusion.cpp:296 - loading vae from 'D:\models\img\vae\ae.safetensors' [INFO ] model.cpp:373 - load D:\models\img\vae\ae.safetensors using safetensors format [ERROR] stable-diffusion.cpp:306 - get sd version from file failed: 'D:\models\img\z_img_turbo-Q4_k.gguf' new_sd_ctx_t failed

Additional context / environment details

No response

[wbruna]

You need to use the flag --diffusion-model instead of -m; see https://github.com/leejet/stable-diffusion.cpp/blob/master/docs/z_image.md for an example.

[bendyfan11]

You need to use the flag --diffusion-model instead of -m; see https://github.com/leejet/stable-diffusion.cpp/blob/master/docs/z_image.md for an example.

I actually ended up loading the model, but now it dosnt want to load the sampler. figuring that out now

[akleine]

Git commit n/a, downloaded vulkan build

Somewhat off topic: that's the reason why I suggested providing the current commit number at start of sd, see #1005 So printing a commit number would help here.