About the nagato yuuki tag
nagato yuuki is a character tag that NovelAI Diffusion can use. On Danbooru it has 239 posts, and its best-rated still image scores 30. 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 nagato yuuki
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 nagato yuuki in a prompt
Put the subject first, then this tag, then quality tags.
nagato yuuki, solo, best quality, masterpiecewlop, nagato yuuki, 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
A fan-created widely-known male version of Nagato Yuki. Unlike Yuki, who only wears her glasses when reading, he still wears his glasses most of the time. Other than that, he still retains her personality and traits.
Phonetically, the genderswapped version's name is virtually the same as the original, it only takes the lengthening of the "yu" sound.
FAQ
Does NovelAI recognize nagato yuuki?
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 nagato yuuki.
How do I write nagato yuuki in a prompt?
Write "nagato yuuki" 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.