update Image Generation tutorial

docs/tutorials/images.md

@@ -137,9 +137,9 @@ SwarmUI utilizes ComfyUI as its backend. In order to get Open WebUI to work with
 
 The address you will input as the ComfyUI Base URL will look like: `http://<your_swarmui_address>:7801/ComfyBackendDirect`
 
-## OpenAI DALL·E
+## OpenAI
 
-Open WebUI also supports image generation through the **OpenAI DALL·E APIs**. This option includes a selector for choosing between DALL·E 2 and DALL·E 3, each supporting different image sizes.
+Open WebUI also supports image generation through the **OpenAI APIs**. This option includes a selector for choosing between DALL·E 2, DALL·E 3, and GPT-Image-1 each supporting different image sizes.
 
 ### Initial Setup
 
@@ -148,18 +148,46 @@ Open WebUI also supports image generation through the **OpenAI DALL·E APIs**. T
 ### Configuring Open WebUI
 
 1. In Open WebUI, navigate to the **Admin Panel** > **Settings** > **Images** menu.
-2. Set the `Image Generation Engine` field to `Open AI (Dall-E)`.
+2. Set the `Image Generation Engine` field to `Open AI`.
 3. Enter your OpenAI API key.
-4. Choose the DALL·E model you wish to use. Note that image size options will depend on the selected model:
+4. Choose the model you wish to use. Note that image size options will depend on the selected model:
    * **DALL·E 2**: Supports `256x256`, `512x512`, or `1024x1024` images.
    * **DALL·E 3**: Supports `1024x1024`, `1792x1024`, or `1024x1792` images.
+   * **GPT-Image-1**: Supports `auto`, `1024x1024`, `1536x1024`, or `1024x1536` images.
 
 ### Azure OpenAI
 
 Using Azure OpenAI Dall-E directly is unsupported, but you can [set up a LiteLLM proxy](https://litellm.vercel.app/docs/image_generation) which is compatible with the `Open AI (Dall-E)` Image Generation Engine.
 
+
+## Image Router
+
+Open WebUI also supports image generation through the **Image Router APIs**. Image Router is an [open source](https://github.com/DaWe35/image-router) image generation proxy that unifies most popular models into a single API.
+
+### Initial Setup
+
+1. Obtain an [API key](https://imagerouter.io/api-keys) from Image Router.
+
+### Configuring Open WebUI
+
+1. In Open WebUI, navigate to the **Admin Panel** > **Settings** > **Images** menu.
+2. Set the `Image Generation Engine` field to `Open AI` (Image Router uses the same syntax as OpenAI).
+3. Change the API endpoint URL to `https://api.imagerouter.io/v1/openai`
+4. Enter your Image Router API key.
+5. Choose the model you wish to use. For more information, [see all models](https://imagerouter.io/models)
+
 ## Using Image Generation
 
+#### Method 1:
+
+1. Toggle the `Image Generation` switch to on.
+2. Enter your image generation prompt.
+3. Click `Send`.
+
+![Image Generation Tutorial](/images/tutorial_image_generation_2.png)
+
+#### Method 2:
+
 ![Image Generation Tutorial](/images/tutorial_image_generation.png)
 
 1. First, use a text generation model to write a prompt for image generation.