About the karlach tag
karlach is a character tag that NovelAI Diffusion can use. On Danbooru it has 480 posts, and its best-rated still image scores 858. 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 karlach
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 karlach in a prompt
Put the subject first, then this tag, then quality tags.
karlach, solo, best quality, masterpiecewlop, karlach, 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
One of the eight Origin characters in Baldur's Gate 3 who can either be the player character or potential party member.
Karlach is a female tiefling barbarian who was sold to the archdevil Zariel to become her prized soldier.
Her heart has been replaced by an Infernal Engine, making her burst into flames if under extreme emotion, [spoilers]But her heart can't survive outside of Avernus and will kill her if she doesn't return. [/spoilers]
FAQ
Does NovelAI recognize karlach?
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 karlach.
How do I write karlach in a prompt?
Write "karlach" 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.