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Chroma Flux | ComfyUI Tweaked | Workflow

Basic ComfyUI workflow for Chroma Diffusion

Sourcecivitai.com/models/1414436
TaskText to imageFamilyFLUXEstimated VRAMNot yet characterizedBgrade

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External workflow
Status
Listed
Source
Civitai
Updated
Oct 25, 2026

Source description

Basic ComfyUI workflow for Chroma Diffusion

Necessary extension , put into "ComfyUI\custom_nodes" folder:

https://github.com/lodestone-rock/ComfyUI_FluxMod

Models folder same as for Flux:

"ComfyUI\models\unet"

"ComfyUI\models\clip"

Chroma GGUF models run same as normal ones, use "Load Chroma Diffusion Model" and "Padding Removal" custom nodes with T5 text encoder only.

Checkpoints for GPU's with high VRAM :

https://huggingface.co/lodestones/Chroma/tree/main

Checkpoints for GPU's with medium VRAM :

https://huggingface.co/silveroxides/Chroma-GGUF/tree/main

T5 text encoder (e4m3fn preferred for medium VRAM):

https://civitai.com/models/497255?modelVersionId=568405

Suggested parameters to use:

I prefer euler ancestral with beta scheduler as it follows prompt better than just euler beta or other combinations as I experimented.

It produces a lot of dots look like trypophobia hell and noise clusters at image edges. So "ModelSamplingFlux" with "max_shift" = 1.5 "base_shift" = 0.5 improves quality pretty much.

Other parameters same as for Flux:

good results at 25 steps with CFG 4.0-5.0, faster at 20 steps

What you need

Hardware and download-size estimates are not available yet.

Requirements

Models

5

  • chroma-unlocked-v16-Q4_0.gguf

    Not resolved

    Checkpoint · Unknown

  • CLIPLoader

    Not resolved

    Text encoder · Unknown

  • stableDiffusion3SD3_textEncoderT5E4m3fn.safetensors

    Not resolved

    Text encoder · Unknown

  • VAEDecode

    Possible

    VAE · Unknown

  • VAELoader

    Not resolved

    VAE · Unknown

Node packs

7

  • ChromaDiffusionLoader

    Not resolved

    Node pack · Unknown

  • ChromaPaddingRemoval

    Not resolved

    Node pack · Unknown

  • CLIPTextEncode

    Possible

    Node pack · Unknown

  • EmptyLatentImage

    Possible

    Node pack · Unknown

  • KSampler

    Possible

    Node pack · Unknown

  • ModelSamplingFlux

    Found

    Node pack · Unknown

  • SaveImage

    Possible

    Node pack · Unknown

AI-generated commentary

AI-generated explanation based on source and configuration details. Suggestions are clearly labeled.

Purpose

  • This ComfyUI workflow is for generating Chroma Diffusion images from a text prompt, using a Chroma checkpoint and T5 text encoder; its named VAEDecode and SaveImage components suggest decoded images can be saved as output.

    Suggestion · not verified

Inputs and outputs

  • For Chroma GGUF models, the description specifies a T5 text encoder only and the custom nodes “Load Chroma Diffusion Model” and “Padding Removal.”

  • Choose a Chroma checkpoint from the listed high- or medium-VRAM collections; e4m3fn is preferred for the T5 encoder on medium VRAM.

Setup

  • Install the ComfyUI_FluxMod extension in ComfyUI\custom_nodes.

  • Place model files in ComfyUI\models\unet and ComfyUI\models\clip.

Dependencies

  • Named model files include chroma-unlocked-v16-Q4_0.gguf and stableDiffusion3SD3_textEncoderT5E4m3fn.safetensors.

  • Other named components are ChromaDiffusionLoader, ChromaPaddingRemoval, CLIPLoader, CLIPTextEncode, EmptyLatentImage, and KSampler.

  • The named list also includes ModelSamplingFlux, SaveImage, VAEDecode, and VAELoader.

Configuration

  • Try Euler ancestral with a beta scheduler as a starting setting; the description’s author prefers it to Euler beta and other combinations.

    Suggestion · not verified

  • If dot-like marks or edge noise appear, try ModelSamplingFlux with max_shift = 1.5 and base_shift = 0.5.

    Suggestion · not verified

  • The description suggests 25 steps with CFG 4.0–5.0 and also mentions 20 steps as an option.

    Suggestion · not verified

Cautions

  • No model-use license is listed; check the applicable usage terms before using the checkpoint or encoder.

    Suggestion

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Sources

1 source
CivitaiPrimary
civitai.com/models/1414436

Verified Jul 19

Source excerpts

1 excerpt
NoteJul 19civitai.com/models/1414436

Source context: 453 downloads · Type Workflows · Base model Flux.1 S