About the lily black tag
lily black is a character tag that NovelAI Diffusion can use. On Danbooru it has 677 posts, and its best-rated still image scores 685. The samples above put the tag at the front of a fixed base prompt with seed 1234, so the differences between tags come from the tag alone.
How each model draws lily black
Follows composition and expression instructions closely, so the effect shows in a tidy form.
Reacts to the tag more strongly, so its effect is easier to see.
WAI illustrious SDXL v17, a local model. Shows how the same tag reads outside NovelAI.
Writing lily black in a prompt
Put the subject first, then this tag, then quality tags.
lily black, solo, best quality, masterpiecewlop, lily black, soloThe negative prompt and the full settings are on the terms page.
How these samples were made
Every image uses 832×1216, seed 1234, 23 steps and the k_euler_ancestral sampler. The base prompt and negative prompt stay the same for every tag, and only the tag under test changes. Images flagged by the NSFW check are regenerated with a new seed or hidden.
From the Danbooru wiki
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A fan nickname for a black-clad version of Touhou's Lily White, first appearing as a random encounter in Phantasmagoria of Flower View.
Doujins vary on her relationship to her canonical counterpart - some depict her as an alternate persona, and others as an entirely different character - but nevertheless she is frequently depicted as a more serious counterpart to the cheerful Lily White.
ZUN eventually confirmed that Lily Black is just Lily White dressing like Shiki Eiki. Given all the other fairies in the stage do the same, it's possible that the outfit is a uniform of sorts.
FAQ
Does NovelAI recognize lily black?
Compare the samples on this page. Every tag on this site shares the same seed and base prompt, so any change you see comes from lily black.
How do I write lily black in a prompt?
Write "lily black" near the front of the prompt and separate it from other tags with commas.
Should I use V5 or V4.5?
V4.5 shows the tag's effect more strongly. V5 gives steadier images with fewer artifacts.