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About the sans (undertale) tag
sans (undertale) is a character tag that NovelAI Diffusion can use. On Danbooru it has 1,210 posts, and its best-rated still image scores 196. 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 sans (undertale)
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 sans (undertale) in a prompt
Put the subject first, then this tag, then quality tags.
sans (undertale), solo, best quality, masterpiecewlop, sans (undertale), 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 lazy skeleton in Undertale. Brother of Papyrus. Speaks in the Comic Sans font. Final boss of the 'Genocide' route.
He wears a blue jacket/hoodie, white shirt, black shorts, and slippers, and is always grinning in the game. In his battle as the final boss of the Genocide Route, he is seen with a distinct glowing left eye when using telekinesis, and fights with bones and gasterblasters as well. At one point during his battle, you're offered the option to spare him, which results in him killing you. In English, he exclaims "geeettttttt dunked on!!!", while in Japanese, he comments that all he did "was try to hug you...", prompting differences in fanart based on the region.
During the peak of the game's popularity, Sans gained memetic status due to his association with edgy and angsty teens on the internet, as well as numerous fan games involving him that were usually cheaply made and unfairly hard. His fan-made alternate universe versions would similarly be swept up in memes.
h4.See also
FAQ
Does NovelAI recognize sans (undertale)?
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 sans (undertale).
How do I write sans (undertale) in a prompt?
Write "sans (undertale)" 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.