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    Klein 9B Body Weight Slider - Klein 9B v1.0
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    A bodyweight slider for Flux 2 Klein.

    As Flux 2 Klein base models were uploaded, the quality of the concept sliders is great.

    This is a first-shot, I'll refine it and upload a 4B version too.

    I recomment weights from -4.0 to 4.0 for realistic results.

    Hope you like it!

    Description

    FAQ

    Comments (17)

    Unseelie_AIJan 18, 2026· 3 reactions
    CivitAI

    Nice! Honestly, haven't used it yet, but instant download. I was waiting for slider loras specifically, particularly weight-based ones! I'm so tired of all my edits and gens immediately being given C and D cups along with hour-glass figures!

    It's like the creators of models have never experienced a woman outside of advertisements and playboy. xD

    l226
    Author
    Jan 18, 2026

    Haha yeah, I believe it's because "photogenic people" are more represented online, so in the datasets for training too. This results in the model believing that's what the reality is. Sadly that also applies to humans...

    Agent_SmthJan 18, 2026· 1 reaction

    cows.
    i see vulgar cows everywere

    That's what reality used to be before fast food

    Unseelie_AIJan 18, 2026· 1 reaction

    Nah, I'm living in Vietnam. Pretty much everyone is skinny and lacking curve here! >_>

    I live in America, hardly anything but J cups here, and with tattoos

    They still don't have curves though, except on the rich side of town

    cidika5417639iuyjkhkjhJan 19, 2026· 1 reaction

    @p_p It's "macromastia".... nah... It's fat. "She thicc".... Nah, she fat or ABOUT to be fat.

    Agent_SmthJan 20, 2026

    @cidika5417639iuyjkhkjh 😆 sorry i dont have any other measures for anything out fo my interest, neither the time to learn new words to describe whats my brain think is disgusting.

    AzzyboiJan 18, 2026· 8 reactions
    CivitAI

    Its hilarious because if you set it to -20 you get the sirenhead stickman xD

    Any lower and image starts deteriorating lol

    DuckFaceJan 18, 2026· 1 reaction
    CivitAI

    4b please!

    l226
    Author
    Jan 23, 2026· 1 reaction

    Done :)

    DuckFaceJan 23, 2026· 1 reaction

    @l226 thanks bro nice work

    brnfd24434343dJan 19, 2026
    CivitAI

    This came out great!

    Was this done a concept slider in aitoolkit? I tried twice and got terrible results. LR? Steps? Lokr?

    z1295868945993Jan 22, 2026
    CivitAI

    This method is obviously very easy to make a character look plump, but it's very difficult to make them look thin. Could it be that I used the wrong prompt words?

    l226
    Author
    Jan 23, 2026

    I don't specify any weight related keywords. Did you make sure to set the LoRA weight value negative for the "thin" effect? I didn't have any issues making a character look thin in my testing.

    timstertimster3Jan 23, 2026· 3 reactions
    CivitAI

    perfect for 9B. I tried on 4B just to check, but no effect whatsoever.

    I'd say "realistic" happens between -3 and +3 but for cartoon characters I do like cranking it up to -10 and +10 and it still looks coherent, just not natural.

    THANK YOU!

    l226
    Author
    Jan 23, 2026

    Uploaded a 4B version :)

    LORA
    Flux.2 Klein 9B
    by l226

    Details

    Downloads
    212
    Platform
    CivitAI
    Platform Status
    Available
    Created
    1/18/2026
    Updated
    8/12/2026
    Deleted
    -

    Files

    klein_slider_bodyweight.safetensors

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