Noise Artifacts in Krea 2 Turbo Refining
Grouchy_Insurance191 · reddit · 2026-07-11
The post asks why Krea 2 Turbo (INT4 ConvRot) produces scattered noise resembling tiny freckles when doing high-resolution refines or img2img refine.
The author describes several observations:
- Noise appears as early as stage two, not just in the final low-denoise step
- Not caused by tiled upscaling, as it also occurs without tile
- At the same denoise level, more steps actually worsen the noise, not improve it
He wants to confirm whether this is an issue introduced by INT4 quantization or if such few-step turbo models are inherently unsuitable for the low-denoise regime of light refining.
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