WorkflowListedExternal

Workflow for Flux.1-dev ControlNet Upscaler

Workflows for using a Flux Upscaler ControlNet.

Sourcecivitai.com/models/1142308

TaskMultiCapabilitiesImage to image · UpscalingFamilyFLUXEstimated VRAMEstimate unavailableBgrade

Runtime profile

Access: External workflow
Status: Listed
Source: Civitai
Updated: Jul 20, 2026

Source description

Workflows for using a Flux Upscaler ControlNet.

Specifically designed for jasperai / Flux.1-dev-Controlnet-Upscaler

Simple

Contains only Comfy Core nodes—requires an input image, upscale size, a prompt and the usual Flux settings.

Complex

Has some more features that may (or may not) achieve a better result.

Input image can optionally be scaled up to the target resolution (natively or via an Upscaling Model) which is then encoded into the input latent. Changing the denoise value will then vary how much Flux uses the original image vs the ControlNet. (denoise of 1.0 will ignore the pre-Flux upscale just like the Simple workflow, denoise of 0.0 will ignore the ControlNet). This may result in an image more consistent to the original, with Flux just smoothing out artifacts and filling in details.

AI-generated commentary

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

Purpose

This workflow is for upscaling an input image with a Flux Upscaler ControlNet. It takes an image, upscale size, prompt, and usual Flux settings, and can produce an upscaled image.

Flow

The Simple path uses only Comfy Core nodes.
The Complex path can optionally scale the input image to a target resolution, using native scaling or an upscaling model, before encoding it into the input latent.

Inputs and outputs

Inputs include an image, upscale size, positive prompt, and usual Flux settings.
The workflow includes PreviewImage and VAEDecode nodes.

Setup

It is designed specifically for jasperai / Flux.1-dev-Controlnet-Upscaler.

Dependencies

Named model files include clip_l.safetensors, flux_ae.safetensors, flux1-dev.safetensors, and jasperaiFlux1Dev_v10_upscaler.safetensors.
Other named model files are t5xxl_fp16.safetensors and ultramix_balanced.pt.
Named node dependencies include ControlNetLoader and WD14Tagger|pysssss.

Configuration

For a simpler path, choose Simple; for optional pre-scaling and denoise control, choose Complex.
Suggestion · not verified
In Complex, denoise 1.0 ignores the pre-Flux upscale, while denoise 0.0 ignores the ControlNet.
An optional Negative prompt is available, and WD14 Tagger can generate tags for the positive prompt.

Cautions

Before use, verify that the named model files are available: clip_l.safetensors, flux_ae.safetensors, flux1-dev.safetensors, and jasperaiFlux1Dev_v10_upscaler.safetensors.
Suggestion · not verified
Also verify t5xxl_fp16.safetensors, ultramix_balanced.pt, ControlNetLoader, and WD14Tagger|pysssss are available.
Suggestion · not verified

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Sources

1 source

CivitaiPrimary

civitai.com/models/1142308

Verified Jul 20

Source excerpts

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NoteJul 20civitai.com/models/1142308

Source context: 357 downloads · Type Workflows · Base model Flux.1 D