CivArchive
    Upscale with Flux-Klein - Portrait - v1.0
    Preview 119220915
    Preview 119220961
    Preview 119220956
    Preview 119221991

    Upscale small images
    trained on pairs 256pix -> 1024pix

    YOU must change standard workflow!
    The input image (~256pix) must be connected directly to reference-condition (workflow inside PNG)
    The use case is the upscale of small images with low resolution.

    Always change the image size (your output resolution) by at least 2, preferably 4.
    ...

    ...

    Flux2.D is quite ok but it is a large model.
    Flux-klein-9b is in some conditions okay, this lora push and force upscale portrait images.


    Main prompt:

    preserve the overall impression of the image. Repair this portrait photo and refine.

    oc you can add instructions eg "looking to the left", "change hair color to red" ...
    Sometimes it helps to add a complete image description.

    it is not that good for old analog photos, i will train next time.

    9b-base-version:
    Play with Lora-weight: 0.5 - 1
    Play with CFG-Guider: 2 - 4
    the distilled version (none base) 4-8 step with cfg 1, is also very impressive


    Description

    my first lora

    upscale-concept

    LORA
    Flux.2 Klein 9B-base

    Details

    Downloads
    189
    Platform
    CivitAI
    Platform Status
    Available
    Created
    1/29/2026
    Updated
    2/1/2026
    Deleted
    -
    Trigger Words:
    preserve the overall impression of the image. Repair this portrait photo and refine.