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About the vita (nanoha) tag
vita (nanoha) is a character tag that NovelAI Diffusion can use. On Danbooru it has 1,898 posts, and its best-rated still image scores 129. 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 vita (nanoha)
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 vita (nanoha) in a prompt
Put the subject first, then this tag, then quality tags.
vita (nanoha), solo, best quality, masterpiecewlop, vita (nanoha), 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 character introduced in Mahou Shoujo Lyrical Nanoha A's.
She appears in neither the previous series Mahou Shoujo Lyrical Nanoha nor the later story Triangle Heart, but she does appear in Mahou Shoujo Lyrical Nanoha StrikerS. Vita is one of the Wolkenritter, a creation of the Book of Darkness. She is the most devoted of the four to Yagami Hayate, their mistress.
Vita's weapon is a mallet called Graf Eisen, and as a magical creation, she has no familiar. She is named for the Opel Vita, much like characters of Magic Knight Rayearth are named for cars (for example, Opel Zafira).
She has orange twin braids and blue eyes, and wears a red beret and red dress.
She is voiced by Sanada Asami.
See also
FAQ
Does NovelAI recognize vita (nanoha)?
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 vita (nanoha).
How do I write vita (nanoha) in a prompt?
Write "vita (nanoha)" 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.