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A workflow is a set of connected steps that creates an image, video, or other result. You can start with a ready-made template. You do not need to build a workflow or understand every node before your first run.

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Before you begin

You can follow this guide in Comfy Cloud first. Open it in your browser to use an image template without installing ComfyUI or downloading a local model. If you prefer to run ComfyUI on your own computer, install Comfy Desktop and follow the same steps. A local template may ask you to download models.
This guide uses an image template as an example. Template names and available models can change as ComfyUI is updated.

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Run an image template

1

Open a template

In ComfyUI, click Templates in the left sidebar, or open Workflow → Browse Workflow Templates. Choose an image generation template that accepts a text prompt.A template loads a complete workflow onto the canvas. Each box is a node that handles one part of the process. The lines between boxes pass information from one node to the next.
2

Resolve any missing models

In Comfy Cloud, choose a template whose models are ready to use. On a local installation, ComfyUI may report missing models. Follow its download prompt before running the workflow.Comfy Desktop downloads supported files from the prompt. With portable or manual installations, the browser may download the files instead. Save each file in the model folder shown in the prompt, then refresh the model list or restart ComfyUI. See Workflow Templates for details.
3

Change the prompt and run

Find the text input in the loaded workflow and replace it with a short description, such as a red bicycle parked beside a café, watercolor illustration. Depending on the template, this may be a text field inside a node or an input panel.Click Run. ComfyUI will process the workflow and show the result in its output node or the queue panel. The first run can take longer while the model loads.
4

Save and try one change

Right-click the finished image and select Save image. Change a few words in the prompt and click Run again to see what changes.

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What you just used

  • Template: A ready-made workflow you can run and edit.
  • Node: A box that performs a step, such as loading a model, reading a prompt, or saving an image.
  • Model: The downloaded AI file used to generate the result. Local workflows need the models they reference.
  • Link: A connection that passes information between nodes.
You can learn more in Workflows, or follow the text-to-image tutorial to explore the image generation steps in detail. If you are unsure whether your template uses a downloaded model or a hosted node, see Where a workflow runs.

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If the workflow does not run

  • Missing model: Open the missing-model details and install the requested file. If a model dropdown is empty after downloading, check its folder and refresh or restart ComfyUI.
  • Missing node: Try a built-in template first. Imported or custom-node templates may require extra nodes. See install custom nodes.
  • No visible result: Check the queue panel for progress or errors, and look for an output node such as Save Image.
For other errors, use Fix a workflow that will not run.