CivArchive
    Flux.2 Character replacer v2.4 - v2.4
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    Workflow for "Replace character on image_1 with character from image_2".

    Requires Flux.2 Klein 9B and optional Illustrious-based model for style transfer.

    Important:
    You need this specific ComfyUI-NAG implementation (it supports Flux.2)

    Description

    This version has automatic face detection and optional style transfer feature

    FAQ

    Comments (20)

    gavin1111Mar 16, 2026
    CivitAI

    hi,I can't find the NAGCFGGuiderAdvanced,where to download it.tks

    brainburns894
    Author
    Mar 16, 2026

    You can install it from there:
    https://github.com/BigStationW/ComfyUI-NAG.git

    SeanX17Mar 16, 2026
    CivitAI

    hello , was NAGCFGGuiderAdvanced updated? can´t find it.

    brainburns894
    Author
    Mar 16, 2026· 1 reaction

    You need this plugin:

    https://github.com/BigStationW/ComfyUI-NAG.git

    SeanX17Mar 16, 2026

    @brainburns894 thnx bro , nice workflow !

    suraneitherMar 16, 2026
    CivitAI

    is it possible to use face detailer without style transfer? When I turn off style transfer toggle and then turn it on the workflow gets broken and start getting a series of errors starting with 'Failed to validate prompt for output 34'

    brainburns894
    Author
    Mar 16, 2026

    To switch off style transfer completely remove or disable 'Preview Image' node at the bottom right corner.

    kennedysworksMar 17, 2026· 2 reactions
    CivitAI

    What a great workflow! If you don't mind, is it possible to do the next version manually specifying the mask area? If there are more than two people, there is an error in replacing it.

    brainburns894
    Author
    Mar 17, 2026· 2 reactions

    Here's version with manual mask:

    https://pastebin.com/yyaSV5iq

    kennedysworksMar 17, 2026

    @brainburns894 I've tried the mask version and still have 2 characters, I get a problem. Maybe there should be an Inpaint Crop and Stitch. Of course it's still so great as of now! :)

    isitMar 17, 2026
    CivitAI

    took a little rewiring but good pose replacement!

    DasOmenMar 17, 2026

    can you share your workflow fixed?

    brainburns894
    Author
    Mar 17, 2026

    @DasOmen Sure

    DasOmenMar 17, 2026· 1 reaction

    @brainburns894 Where bro?

    Eydahn8Mar 17, 2026
    CivitAI

    I loved your previous workflow, but I’m having trouble with this one because the facefix preview doesn’t show anything and it seems like it isn’t being applied, this happens even if i disable the node-group in the lower right corner.. Could you please help me please?

    rzbre663Mar 17, 2026· 1 reaction
    CivitAI

    the workflow breaks sometimes wen minor changes are made

    * VAEEncode 28:103:144:

    - Required input is missing: vae

    - Required input is missing: pixels

    1720435Mar 19, 2026· 3 reactions
    CivitAI

    somehow it doesnt do anything like it just stop then return my original image

    MoreColors123Mar 25, 2026
    CivitAI

    for anyone having problems, i found out that the subgraphs are broken (probably due to the current problems from new comfyui versions). you need to extract the subgraphs and combine them again so the links to the conditioning are reset.

    zylzzz66Mar 26, 2026

    yep, is annoying unless you use old version

    whisk3yApr 23, 2026
    CivitAI

    NAG Fix:
    You need to install this specific fork of ComfyUI-NAG (and remove previous):

    https://github.com/BigStationW/ComfyUI-NAG.git

    Workflows
    Flux.2 Klein 9B

    Details

    Downloads
    1,468
    Platform
    CivitAI
    Platform Status
    Available
    Created
    3/15/2026
    Updated
    5/13/2026
    Deleted
    -

    Files

    flux2CharacterReplacer_v24.zip

    Mirrors

    HuggingFace (1 mirrors)