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    SD seems to love big breasts. But not all people prefer them too. Even most of the NSFW Lora's for SDXL only produce big ones. This is a Lora for really small breasts.

    SD 1.5 Version: https://civarchive.com/models/285031?modelVersionId=320676

    Read the "About this version" to get the best results.

    I have nothing against 5* ratings, but please refrain from doing so if this LoRA has obviously not been used...

    I recommend a strength between 08 and 1.25.

    I strongly recommend the "flat chested" versions. Other versions are experimental.

    Hopefully it is clear that this LoRA may not be used to create underage or otherwise illegal content

    Feel free to share the images you created with this LoRA if you like. I'm excited to see what others here have done with it.

    There are not many tutorials for training NSFW stuff. So I am absolutely no expert either.

    For this LoRA everything in the image was tagged except for the breasts. For the head I made it easy and it was either not on the pictures or I just tagged it with "head". Not much different than for SFW stuff.

    Description

    This version is based on a new, slightly smaller but better data set.

    I recommend to use adetailer because faces can look a bit worse than in the previous versions, but the rest is better.

    also add ``cropped, close up`` to negative prompt can help

    FAQ

    Comments (16)

    3824569Apr 14, 2024· 1 reaction
    CivitAI

    just put "fat-tits" and "xl-tits" in negative....

    checkpoints react on "tits" like crazy, so anything you prompt with that will 100% work.

    FPVxApr 14, 2024
    CivitAI

    I really prefer the output of the SD 1.5 over the SDXL Version. Have not being able to recreate my pictures and went back to using weighted prompts for SDXL sadly. But I really love your SD 1.5 Version.

    Explatord
    Author
    Apr 14, 2024

    interesting, im not as happy with the sd 1.5 version as with the SDXL.

    FPVxApr 14, 2024

    @Explatord Hehe :) Guess tastes are different.

    Explatord
    Author
    Apr 14, 2024· 1 reaction

    @FPVx yes haha. But glad that you like the sd1.5 version :)

    yofoton174609Apr 14, 2024

    yeah i prefer the sdxl more. Since sdxl can create better 1024x1024 better, which is just enough for upscaling. sd1.5 images are hard to upscale.

    FPVxApr 14, 2024

    @yofoton174609 IT is not about the Size, just that - to me - the flat chests in SD 1.5 look more beautiful than with SDXL. I always upscale anyway.

    FPVxApr 20, 2024

    @Explatord These here are perfect, and I really struggle to get anything alike in SDXL. The outcome in the SD 1.5 version was also realiable... the model I used here is DeliberateV5 or 6

    https://civitai.com/images/7622373

    EbenezerDanglewoodApr 27, 2024· 1 reaction

    For XL, I find that weighted prompts are sufficient most of the time. However, certain character loras (and even entire checkpoints) just refuse to go below a c-cup, and this lora will reliably force them to obey. It's extremely useful in those situations.

    ARATHRONApr 24, 2024
    CivitAI

    Best LoRa ever hehe, love it

    4272540Jun 21, 2024· 2 reactions

    I think you mean "breast LoRA ever"

    DudeWTFJun 9, 2024
    CivitAI

    I'm just learning LoRA's. I've never seen a model that starts out with a giant jpeg embedded in the beginning. Is this a different type or toolchain? Is there an easy way to parse the training caption keywords, because I'm not seeing them?

    Explatord
    Author
    Jun 9, 2024

    I'm Using OneTrainer (https://github.com/Nerogar/OneTrainer). Unlike kohya ss it does not store the training captions

    jzaiguyJun 16, 2024· 3 reactions
    CivitAI

    This is fantastic! It really had the desired effect of smaller breasts that look natural. Not all woman have big boobs! Only issue I noticed is that the cropping of the image gets tighter with the higher number.

    Explatord
    Author
    Jun 17, 2024· 1 reaction

    i'm working on a new version that hopefully resolves this issue

    jzaiguyJun 17, 2024

    @Explatord That's great! Thank you!

    LORA
    SDXL 1.0

    Details

    Downloads
    28,454
    Platform
    CivitAI
    Platform Status
    Available
    Created
    4/13/2024
    Updated
    6/11/2026
    Deleted
    -
    Trigger Words:
    flat chested

    Available On (2 platforms)

    Same model published on other platforms. May have additional downloads or version variants.