About the koha-ace tag
koha-ace is a series tag that NovelAI Diffusion can use. On Danbooru it has 5,145 posts, and its best-rated still image scores 423. 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 koha-ace
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 koha-ace in a prompt
Put the subject first, then this tag, then quality tags.
koha-ace, solo, best quality, masterpiecewlop, koha-ace, 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 Type-Moon parody manga created by Keikenchi.
It stars Kohaku from Tsukihime and features characters from various Type-Moon series. It is drawn in a chibi style, and it is a self-aware series that constantly breaks the fourth wall.
Carnival Phantasm included segments based on the series, and it was the focus of Type-Moon's 2012 April Fools' Day joke. Several characters from Koha-Ace have been made into Servants in Fate/Grand Order.
External links
FAQ
Does NovelAI recognize koha-ace?
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 koha-ace.
How do I write koha-ace in a prompt?
Write "koha-ace" 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.

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