Z-Image + SDXL + Upscale = Stunning 4K+ Images

• Wildcards support in prompt with Impact Pack.

• Seed changed from primitive to Layer Style Seed node to address issues with wildcards

• GGUF support

• Switched to abliterated text encoder

• Tuned settings (steps, sampler, scheduler, CFG)

• Switched to a higher resolution - resolutions higher than 1024 x 1024 solve a lot of noise issues

Note: Z-Image Turbo is super sensitive to sampler settings. Honestly there is not a right or wrong and I would highly recommend you experiment to find what suites your needs.
Combinations I found work well:
CFG: 1 - 2.5
Sampler and scheduler: Euler A Simple, Euler A LQ, Euler A CFG PP LQ, Res Multistep Simple