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This model has some artifacting, but this can be kept low by generating with over 40 steps, and by not using a DPM-based sampler at lower step counts. It's most apparent when generating animals, but does still sometimes appear on human faces. Higher step counts usually help.
Don't use this model expecting a balanced general art experience. It's weird, finicky, and bugged, but it would've been a shame to let its specific strengths go to waste as well.
This unstable experiment model based on 526Mix V1.2 has a few strengths:
High-detail portraits
Close-up shots
Interiors
Semi-realism
Sci-Fi
It also has issues:
The aforementioned artifacts (semi-realistic faces will often need fixing)
Landscapes are usually messier and sometimes not as expressive
Some art styles aren't as good (e.g. line art, Jack Davis style)