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    General Penis Lora [Klein 9B/Z-Image] - Z-Image-v1.0
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    Flux Klein 9B v1.5 BETA

    • Beta release because there's some improvements but not a huge upgrade, and is kind of broken in some areas compared to v1.

    • Experimenting with different captions and training styles with mixed results. Penises generally look good and has more variations, but also prone to distorting.

    • Describing the type of penis in the prompt is highly recommended, like a "hung and uncut penis", though some combinations work better than others. Check the trigger words.

    • Uncut (facing down) penises are mostly improved. Erect and circumcised are still difficult to create consistently, and the 'dick pic' angle still doesn't work well.

    • Body proportions look better.

    • Edit mode does a better job at retaining the subject's appearance.

    Next update will definitely need to fix the weird distortions or those instances where it doesn't know where to place the penis. Decided to release this because you can still good results, but it's not as consistent.


    A general penis LoRA intended to create different types of penises on different types of skin tones, though it still needs some work. This page is currently only focused on the Flux.2 Klein and Z-Image models. As a disclaimer, please use this model responsibly, especially when using the edit feature.

    This was trained on a mix of high resolution close-ups and full body photos of various penises. 76 images overall. Most were flipped on the x-axis but some weren't due to text being in the image.

    Trigger words: penis, erect, flaccid, hung, foreskin, circumcised, uncut, glans, frenulum


    I've spent the past couple of months staring at deformed blobs of flesh on men's crotches. If you support my hobby, feel free to buy me a coffee: https://ko-fi.com/avrik

    Description

    • For Z-Image Base

    • Not recommended with Z-Image Turbo. It sort of works but doesn't look as good, and increasing the lora strength just makes it worse.

    • Less detailed and realistic compared to the Klein 9B version but a little more flexible. Update for Klein coming soon.

    • Leans more toward realism.

    • Generates circumcised and uncircumcised but some foreskin got lost in the training lol. Need to add more training data for erect uncircumcised penises as well.

    • If you prompt with too much clothes or strange positions it might get confused about where to place the penis.

    • Might run into some body horror/blob hands/disembodied hands/double penises and other random issues.

    FAQ

    Comments (5)

    wiizFeb 7, 2026· 1 reaction
    CivitAI

    Which did you find better to train Klein or Z-image and can you share a bit more about your dataset

    Avrik
    Author
    Mar 23, 2026

    They're both kind of hard to train tbh. Maybe it's because I'm trying to train different "types" of penises but trying to make the model understand it all feels more like a balancing act. One angle will look good but will break another angle, or it will decide to just mess up the limbs and hands even more.

    And the dataset isn't really too big, just tried to categorize different angles and penis types (like hung, flaccid, erect, side view, etc), then dividing them up in separate folders so that I could adjust its repeat count depending on if something needs more representation in the training. Honestly I'm still figuring it out too, especially with captioning and settings.

    ss9999Feb 9, 2026· 1 reaction
    CivitAI

    Glans size and penis skin smoothness (non-veiny, non-wrinkly) would be nice to have as control factors for an upcoming version. I happen to like penises with large glans that aren't super long and smooth skin (plus large testicles). Thank you.

    EvilPeterPanFeb 10, 2026
    CivitAI

    i've trained z-image base penis lora but it keeps failing can you give me some advice?

    AelyadrielFeb 21, 2026
    CivitAI

    The LoRA is great, thanks! But when I use it with my character’s LoRA, it changes the face and hair even with the strength adjusted. Anyone, any solution please? 🙏🏻