YiffyMix v3.4 Guide
YiffyMix v34 can create high quality, highly customizable images and is very easy to use with e621 tags. It is suitable for creating both human subjects and anthropomorphic (anthro) subjects provided you use the proper prompts.
This Model Excels At
- Color separations via tags.(e.g. red_shirt, white_underwear, black_fur)
- Male/Female/Furry/Trans model creation
- Sex positions
- Niche fetish/Fetish images
- Nsfw/SFW
- 3d Renders
- POV shots are easy to create using e621 tags.
What To Be Aware of About This Model
- Requires some knowledge of E621 website artists and tags
- Art quality can be lackluster, without the right artist.
- It's important to be aware that certain keywords may not yield the desired results, mainly because the model's training extensively relies on e621 tags.
- E621 website tag list: https://e621.net/tags
- Adheres to tag formatting rules (e.g., "by jay_naylor, close-up, 1girl, canine_humanoid" should be entered as "by jay_naylor, close-up, 1woman, canine_humanoid" in YiffyMix)
Prompting Style
The recommended prompt requires the following
Recommended Settings
- Steps: 30-39
- CFG Scale: 5-12
- Sampler: DPM++ 2M Karras
Prompting
| Prompt Component | Description | Example |
|---|---|---|
| uploaded on e621 | sets the engine to e621 style images and accepts e621 tags | red_fur, canine_humanoid, ear_tuft |
| art by e621 Artist Name | Name of artist from the e621 website, Max 4 artist | art by john_totleben,art by judy_chicago,art by kuno_veeber |
| Human modifier | (human:1.6) is required to make human images | this is left black for Anthro style images |
| Line Break | SexyAI does not support line breaks | BREAK will be break and empty lines will be deleted |
| Specific quality modifiers | A series of keyterms with specific weights to create realistic or 3d style images. Must be placed after the casual quality modifiers. | (masterpiece:1.2), (high detail:1.4),(intricate:1.2) |
For Anthro Style
uploaded on e621, art of E621 Artist Name , subject, major details,minor details, spesific quality modifiers
For Human Style
uploaded on e621 art style of [E621 Artist Name] (human:1.6) subject,major details, minor details, spesific quality modifiers
Specific Quality Modifiers
For 2D Realistic Style
(masterpiece:1.2),(high detail:1.4),(intricate:1.2),(film photography),(best quality:1.5),(best image:1.5)
| Prompt Component | Description |
|---|---|
(high detail:1.4),(intricate:1.2) | weights can be readjusted to create different levels of realism. |
For 3D style
,(3d render), (octane render),(unreal engine), (best render:1.5), (high detail:1.4), (intricate:1.2),(ultrarealistic), (ultra quality:1.5), (best quality:1.5), (blender:1.3)
| Prompt Component | Description |
|---|---|
3d render,(unreal engine) | weights can be changed to create different levels of 3d renders |
You can use terms from both 2D Realistic Style and 3D style as long as it's placed correctly. |
Artist Names
Artists name are important when creating image in stable diffusion. In YiffyMix it's crucial. The following images showcase the major impact an artist name can have.
 |  |
|---|---|
| Prompt | Prompt |
uploaded on e621,(art by henry_tonk, by prior_hall, by travos_louie),1female,a woman, standing, | uploaded on e621,(art by henry_tonk, by prior_hall, by travos_louie, by albert_bierstadt), 1female,a woman, standing |
,closeup portrait shot, in a forest, masterpiece, best quality, extremely detailed,soft light, soft shadows, soft backlighting, (best image,best quality:1.5) | closeup portrait shot, in a forest, masterpiece, best quality, extremely detailed,soft light, soft shadows, soft backlighting, (best image,best quality:1.5) |
Without artist albert bierstadt | With artist albert bierstadt |
POV and Perspective Shots
uploaded on e621,art by [artist names],subject
, type POV, quality modifiers
Notes
- You want to add these terms after the linebreak segment of the prompt after the second comma.
- Response to the keywords in Prompt101.
- e621 has special POV tags that only work on this engine.
Multiple subjects
For Anthro Style
uploaded on e621, artists, (`x`gender `animaltype`),(feral/anthro)
| Prompt Component | Description | Example |
|---|---|---|
animaltype | the species of animal | wolf,werewolf |
feral | creates a wild version of the subject | wolf,feral,lion,feral |
For Human Style
uploaded on e621,artists,(human:1.6),(`x`males)/(`x`female),
| Prompt Component | Description | Example |
|---|---|---|
xmales/female | replace x with a whole number | 3male,three females |
Groups
uploaded on e621,(art by [E621 Artist Name]),(grouptype),(animaltype),(feral/anthro) OR (grouptype),(human:1.6)
Sample Prompts
Wolf Pack
Positive Prompt
uploaded on e621,(art by Anatoly Metlan,by Albert Namatjira,by Hendrik Goltzius, by Mead Schaeffer),pack of werewolves,feral,(2male, 2female)
Group of Lumberjacks
Positive Prompt :
uploaded on e621,(art by winslow homer,by hioshiru,by lostgoose,by darwyn cooke),(human:1.6),large group of lumberjacks,(4males)
Werewolf
Positive Prompt :
uploaded on e621, (by henry tonk, by prior hall, by travos louie:1.3),(a werewolf:1.3), (short hair),(extremely handsome),(muscular),(white briefs),(two-tone fur),(counter shade fur:1.5),(white chest fur),(crouching),(detailed erect bulge:1.5),(wolf tail),(contrast collar:1.5),(contrast harness:1.5),(horny),(lustful:1.5),(looking at viewer:1.5),(dominate:1.3),(playful:1.1),(bedroom eyes:1.5),(smug:1.5),(long nose:1.3),
(receiving pov:1.5),(three quarters portrait:1.5),(rough fur texture:1.5),(faded block background),(darkest lines:1.5),(cinematic photography),(high detail:1.5),(intricate:1.1),(best quality:1.5),(best composition:1.5),([deep|shallow] focus:1.5),(best image:1.5),(best background:1.5),(soft lighting:1.2),(dramatic shadows:1.3),(best line art:1.5),(hard [red|blue]backlighting:1.5),(indirect [hard|soft] side light:1.5),(extremely detailed),(fur highlighted by [hard|soft] radial red light),(hard shading),(deep depth of field:1.5),(drop shadows:1.5)Negative Prompt :
(low quality face:1.5),(anomlies:1.5),(floating details:1.5),(wrong orientation),(low detail:1.5),monochrome, (worst composition, worst quality, worst image:2),(twisted body)
Dragon Scales
Positive Prompt :
uploaded on e621,(art by john totleben,by judy chicago,by kuno veeber,by lynda benglis), (a female dragon:1.5), (hard light absorbing dragon scales:1.5),(white prism scales:1.3),(seductive pose),
,(dark snow amazing background:1.1),(high detail:1.5),(intricate:1.3),(best quality:1.5),(ultra realistic),(ultra quality:1.5),(film photography),(octagonal scales illuminated by oscillating [on|off] moonbeams),(subsurface scattering light:1.3),(dramatic shadows:1.3),soft fractal light,(scales illuminated by radial ethereal backlight),contact shadows,(depth of field),watercolor blending,[thick|soft] blendingNegative Prompt :
(low quality face:1.5),monochrome,(worst image, worst quality,worst composition:2)
Prompt Style Comparison
Below you can see the difference in generation quality between applying only the general prompt style in Prompting 101 and applying the recommended style specific to this model.
| Result | Prompt |
|---|---|
 | closeup portrait shot, a woman standing in a forest, masterpiece, best quality, extremely detailed, soft light, soft shadows, soft backlighting, (best image,best quality:1.5) |
Final Thoughts
YiffyMix v3.4 is a beast of a model. It consistently performs well regardless of prompt syntax, but applying the recommended prompt style and relevant e621 tags provides control for generating detailed images inspired by over 2000 different art styles. This level of control also allows it to create unique images that are hard to replicate with other models. While it may require some knowledge or experimentation with artist names, its image quality is consistently outstanding.