About the koiwai yotsuba tag
koiwai yotsuba is a character tag that NovelAI Diffusion can use. On Danbooru it has 630 posts, and its best-rated still image scores 247. 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 koiwai yotsuba
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 koiwai yotsuba in a prompt
Put the subject first, then this tag, then quality tags.
koiwai yotsuba, solo, best quality, masterpiecewlop, koiwai yotsuba, 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
The main character from the Yotsubato!. A tiny five-year old girl with a distinctive green hair tied into quad tails, resemble a four-leaf clover, fitting with her name. Also, apparently not a Japanese.
4chan uses her as a mascot/on their 404 pages and hold her in high enough regard that asking for porn of her gets angry reactions and most often even bans.
FAQ
Does NovelAI recognize koiwai yotsuba?
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 koiwai yotsuba.
How do I write koiwai yotsuba in a prompt?
Write "koiwai yotsuba" 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.