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About the achan (blue semi) tag
achan (blue semi) is an artist tag that NovelAI Diffusion can use. On Danbooru it has 295 posts, and its best-rated still image scores 86. 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 achan (blue semi)
Follows pose and expression instructions closely. Good for clean standing portraits.
Picks up face shape, line and palette more strongly. Good when you want the style to lead.
WAI illustrious SDXL v17, a local model. Shows how the same tag reads outside NovelAI.
Writing achan (blue semi) in a prompt
Put the artist tag near the front, then add the subject and quality tags.
achan (blue semi), 1girl, solo, best quality, masterpieceachan (blue semi), hatsune miku, 1girlachan (blue semi), sasanomesi, 1girlThe mix example uses sasanomesi, the closest style on this site. The 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
Taiwanese artist.
Nickname: 阿蟬 (A Chan or Achan) The other name: 阿蟬蟬 (Achanchan) Circle & site name: BLUE SEMI
FAQ
Does NovelAI recognize achan (blue semi)?
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 achan (blue semi).
How do I write achan (blue semi) in a prompt?
Write "achan (blue semi)" near the front of the prompt and separate it from other tags with commas.
Which artists draw in a similar style to achan (blue semi)?
sasanomesi, kuro chairo no neko, hokori sakuni are the closest on this site, judged from the V4.5 samples.
Should I use V5 or V4.5?
V4.5 gives a stronger achan (blue semi) look. V5 gives steadier poses and fewer artifacts.