feat: Azure OpenAI Image Generation support

docs/getting-started/env-configuration.md

@@ -2745,6 +2745,13 @@ Strictly return in JSON format:
 - Description: Sets the OpenAI-compatible base URL to use for DALL-E image generation.
 - Persistence: This environment variable is a `PersistentConfig` variable.
 
+#### `IMAGES_OPENAI_API_VERSION`
+
+- Type: `str`
+- Default: `${OPENAI_API_VERSION}`
+- Description: Optional setting. If provided it sets the `api-version` query parameter when calling the image generation. If the Azure OpenAI service is used, this needs to be configured.
+- Persistence: This environment variable is a `PersistentConfig` variable.
+
 #### `IMAGES_OPENAI_API_KEY`
 
 - Type: `str`

docs/tutorials/images.md

@@ -157,7 +157,13 @@ Open WebUI also supports image generation through the **OpenAI APIs**. This opti
 
 ### 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 generation with a Azure OpenAI Dall-E or GPT-Image is supported with OpenWeb UI. Configure the Image Generation as follows:
+
+1. In Open WebUI, navigate to the **Admin Panel** > **Settings** > **Images** menu.
+2. Set the `Image Generation Engine` field to `Open AI` (Azure OpenAI uses the same syntax as OpenAI).
+3. Change the API endpoint URL to `https://<instance-id>.cognitiveservices.azure.com/openai/deployments/<model>/`. Set the instance and model id as you find it in the settings of the Azure AI Foundry.
+4. Configure the API version to the value you find in the settings of the Azure AI Fountry.
+5. Enter your Azure OpenAI API key.
 
 
 ## Image Router