Note from mel: this isn't full description, check out the original page please if you need information I omitted to fit(which is tips & tricks, prompting guide and Q&A section). Absinthe and Paradise are not in this reprint.
Update from 02/03/26: Added Reprint of [Blue Hawaiian].
Welcome to Fifth Mix, what mix would you like to start with tonight?
[Blue Hawaiian]: Illustrious (EPS)
[Screwdriver]: NAI (v-pred) ♥ LS582's recommended choice ♥
[Vieux Carré]: NAI (v-pred)
[Vieux Carré](Beta): NAI (v-pred)
[Banana daiquiri]: Illustrious (EPS)
[Absinthe]: Illustrious (EPS)
[Paradise]: Illustrious (EPS)
Now that you've ordered, please read the instructions below.
When using the recommended tools and settings, all versions of Fifth Mix should be usable within the same recommended values without alteration.
You are however welcome to approach Fifth Mix in any way you're most comfortable with. Below are my recommendations based on my personal experiences and usage.
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There are other UI choices, but A1111 is seemingly abandoned, and I don't know enough about anything outside of ReForge/Forge. Comfy has a large and supportive community and I know someone will be able to help you if you chose that.
Stable Diffusion UI:
Forge
ReForge
Comfy.
Extensions:
ADetailer (ESSENTIAL) link
Sweet and simple, you know what it dose and I couldn't live without it now. Here's the three ADetailer models I use most, and consider necessities for your library.
Kohya HRFix (RECOMMENDED) built-in w/ (Re)Forge/Comfy
(Kohya Deep Shrink for Comfy users.)
Kohya HRfix is generally required for 1.5x raw resolution and non-standard resolution generation stability.
Sometimes when using both K-HRFix and Forge Couple, they might break. In most cases, this is related to the K-HRFix option for Downscale Factor just keep that at the default (2) and it should be fixed.
Fifth Mix [Screwdriver] and [Vieux Carré] have been thoroughly tested with this tool and I can't begin to recommend it enough.
Forge Couple (QOL) link
(Or any alternative to it, are) One of the next most essential tools you should have available. Opening up many more options for generation, such as for couples, groups, or certain difficult image layouts that wouldn't be possible otherwise.
Tag autocomplete (QOL) link
An absolute necessity everyone should have. Don't forget to change the .csv in your UI options to use the e621 tags.
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The first row of resolutions represent the base supported resolutions that all SDXL and all fine-tunes built out of it's lineage should be capable of.
But, the further away from square images, both in terms of aspect ratio and resolution you move, most models become increasingly unstable without the support of tools like Kohya HRFix.
However, many newer models are slowly adding more support for higher base resolutions making more of these resolutions attainable without additional tools. I still highly recommend having access to Kohya HRFix, because raw 1.5x without Kohya HRFix can be very temperamental, resulting in very strange, impossible, grotesque and duplicate anatomy.
UI Settings:
Sampling steps: 25-50
CFG: 3-6
Sampling method | Schedule type
RECOMMENDED: Kohaku_LoNyu_Yog | KL Optimal
FALLBACK: Euler A | Automatic
If you don't already have the Kohaku_LoNyu_Yog sampler, this should be it. (Link)
additionally, there seems to be a small mistake in the files for this sampler, huge thanks to user ct_7r for informing me of this and instructions to fix it.
To fix this, go to the custom node installation directory, locate the init.py file, and remove the "sample_" prefix from the line SAMPLER_NAMES.append("sample_Kohaku_LoNyu_Yog"). This format differs from all the others and should be very easy to identify.
Hires. fix settings:
Upscale by: 2-2.5
Denoising strength: 0.15-0.4
Upscaler: 4x_foolhardy_Remacri (link)
(Use lower denoising with higher upscale percentages.)
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tips & tricks:
Much of what you can learn here from from all my guidance for using Fifth Mix will work on many other models. Not all, perhaps not even most, but many models work similarly enough to Fifth Mix series models that these directions should server well there too.
Getting a particularly "human" feature in your output? This can usually be solved by weighting prompts related to antho/furry features in your positive prompt up, and/or try adding some human related features in the negative.
Still getting obnoxious background characters that you don't want? Tried the recommended tags and then some? This is where you can use tools like Forge Couple to separate the character you're trying to prompt from the background, (Using advanced or mask mode) this is basically the nuclear option to delete unwanted background characters appearing, because it also tends to be harder to build your prompt and has a drastic impact on the final output. But it works.
Generally bigger prompts are better with Fifth Mix, no need to overly express every little thing, but leaving less ambiguity for the the model to fill in on it's own tends to help.
Opposite to the last tip, sometimes less is more! if you're using smaller prompts, you might want to use less enhancement and medium prompts, they have a more dramatic impact on the final output with smaller prompts.
As much as I prefer and recommend the use of e621 tags, sometimes, you might need to fall-back onto some very common, or specific Danbooru tags to solve something.
I always forget to mention this, but if you're ever trying to generate an oc serval... there's sadly a very heavy prompt overlap with Serval-chan of kemono friends, when using the prompt serval, best advice is to first prompt Serval-chan in the negatives, and better describe your oc serval. Similar occurrences are likely to appear with other species with popular characters that unfortunately use their species name in their official name.
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Credits!
A massive thank you to all the model creators out there, without whom Fifth Mix in all it's flavors would not be possible.
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Notes
⦁ [Blue Hawaiian]: So, anyway, you might notice the showcase for this model is a bit limited compared to normal. Short answer, I wanted to try some new things, and ended up getting burnt out when my UI got bricked and the first merge corrupted.
So I'll be looking for posts to pin on this one for sure.
⦁ [Blue Hawaiian]: Cover image created at 1.5x raw resolution, and upscaled 3x, all other images 1.5x raw 2.5x upscale; all using Remaci, and Khoya HRfix, a few images skipped ADetailer.
⦁ [Screwdriver]: All showcase images were created at 1.5x raw resolution using Kohya HRFix; upscaled 2.5x using 4x Foolhardy Remacri and ADetailer. (Half truth, all images were intended to use Kohya HRFix, a few do not, see if you can spot them!)
⦁ [Vieux Carré]: well, I guess you don't get a clean version of the cover image, every single time I've uploaded it, it gets flagged for review and this time Civit's dumb ass bot decided it breaks TOS... I'll let you make that make sense.
⦁ [Vieux Carré]: All showcase images were created at 1.25x raw resolutions and upscaled 2.5x using 4x Foolhardy Remacri and ADetailer. Showcase images with two characters also used Forge Couple to facilitate stability and image layout.
⦁ [Vieux Carré](Beta): All showcase images were created at 1.25x raw resolutions and upscaled 2.5x using 4x Foolhardy Remacri and ADetailer. Showcase images with two characters also used Forge Couple to facilitate stability and image layout.
⦁ [Banana daiquiri]: All display images are passed through HiRes with 4x Foolhardy Remacri at 2.5x/2.75x upscaling, and then hit with various ADetailer models as needed.