> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Flux 1.1 Pro Ultra Image Workflows in ComfyUI

> How to run the Flux 1.1 Pro Ultra Image text-to-image and image-to-image workflows in ComfyUI, locally or on Comfy Cloud

This guide shows how to run the Flux 1.1 Pro Ultra Image workflows in ComfyUI. For what the model is and what it does best, see the [Flux 1.1 Pro Ultra Image overview](/tutorials/partner-nodes/black-forest-labs/flux-1-1-pro-ultra-image).

<Tip>
  To use the Partner Nodes, you need to ensure that you are logged in properly and using a permitted network environment. Please refer to the [Partner Nodes Overview](/tutorials/partner-nodes/overview) section of the documentation to understand the specific requirements for using the Partner Nodes.
</Tip>

<Tip>
  <Tabs>
    <Tab title="Local users">
      Make sure your ComfyUI is updated.

      * [Download ComfyUI](https://www.comfy.org/download)
      * [Update Guide](/installation/update_comfyui)

      Workflows in this guide can be found in the [Workflow Templates](/interface/features/template).
      If you can't find them in the template, your ComfyUI may be outdated.

      If nodes are missing when loading a workflow, possible reasons:

      1. You are not using the latest ComfyUI version (Nightly version)
      2. Some nodes failed to import at startup
    </Tab>

    <Tab title="Cloud users">
      * [Cloud](https://cloud.comfy.org) will update after ComfyUI stable release.

      So, if you find any core node missing in this document, it might be because the new core nodes have not yet been released in the latest stable version. Please wait for the next stable release.
    </Tab>
  </Tabs>
</Tip>

## Flux 1.1 Pro Ultra Image Node Documentation

Check the following documentation for detailed node parameter settings:

* [Flux 1.1 Pro Ultra Image](/images/built-in-nodes/api_nodes/bfl/flux-1-1-pro-ultra-image.jpg)

## Flux 1.1 \[pro] Text-to-Image Tutorial

### 1. Download Workflow File

Download and drag the following file into ComfyUI to load the workflow:

![Flux 1.1 pro Text-to-Image Workflow](https://raw.githubusercontent.com/Comfy-Org/example_workflows/main/api_nodes/bfl/flux_1_1_pro_t2i.png)

### 2. Complete the Workflow Steps

<img src="https://mintcdn.com/dripart/OVkvfOwYrH10fL3Y/images/tutorial/api_nodes/bfl/flux_1_1_pro_t2i_step_guide.jpg?fit=max&auto=format&n=OVkvfOwYrH10fL3Y&q=85&s=b9403dd3baf434686961672addef2a39" alt="Workflow Steps" width="3030" height="1370" data-path="images/tutorial/api_nodes/bfl/flux_1_1_pro_t2i_step_guide.jpg" />

Follow the numbered steps to complete the basic workflow:

1. (Optional) Modify the prompt in the `Flux 1.1 [pro] Ultra Image` node
2. (Optional) Set `raw` parameter to `false` for more realistic output
3. Click `Run` or use shortcut `Ctrl(cmd) + Enter` to generate the image
4. After the API returns results, view the generated image in the `Save Image` node. Images are saved to the `ComfyUI/output/` directory

## Flux 1.1\[pro] Image-to-Image Tutorial

When adding an `image_prompt` to the node input, the output will blend features from the input image (Remix). The `image_prompt_strength` value affects the blend ratio: higher values make the output more similar to the input image.

### 1. Download Workflow File

Download and drag the following file into ComfyUI, or right-click the purple node in the Text-to-Image workflow and set `mode` to `always` to enable `image_prompt` input:

![Flux 1.1 pro Image-to-Image Remix](https://raw.githubusercontent.com/Comfy-Org/example_workflows/main/api_nodes/bfl/flux_1_1_pro_i2i.png)

We'll use this image as input:
![Input Image](https://raw.githubusercontent.com/Comfy-Org/example_workflows/main/api_nodes/openai-dall-e-3/text2image.png)

### 2. Complete the Workflow Steps

<img src="https://mintcdn.com/dripart/OVkvfOwYrH10fL3Y/images/tutorial/api_nodes/bfl/flux_1_1_pro_i2i_step_guide.jpg?fit=max&auto=format&n=OVkvfOwYrH10fL3Y&q=85&s=0217606be6c3f599e3d6ebd2fb14829a" alt="Workflow Steps" width="2825" height="1076" data-path="images/tutorial/api_nodes/bfl/flux_1_1_pro_i2i_step_guide.jpg" />

Follow these numbered steps:

1. Click **Upload** on the `Load Image` node to upload your input image
2. (Optional) Adjust `image_prompt_strength` in `Flux 1.1 [pro] Ultra Image` to change the blend ratio
3. Click `Run` or use shortcut `Ctrl(cmd) + Enter` to generate the image
4. After the API returns results, view the generated image in the `Save Image` node. Images are saved to the `ComfyUI/output/` directory

Here's a comparison of outputs with different `image_prompt_strength` values:

<img src="https://mintcdn.com/dripart/OVkvfOwYrH10fL3Y/images/tutorial/api_nodes/bfl/flux_1_1_pro_image_prompt_strength.jpg?fit=max&auto=format&n=OVkvfOwYrH10fL3Y&q=85&s=eea7014b92e63f0b8d1bb50d5dae11c3" alt="Comparison" width="3150" height="1173" data-path="images/tutorial/api_nodes/bfl/flux_1_1_pro_image_prompt_strength.jpg" />