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The image generation action allows your Agents to create images based on text prompts. Once configured, any AI model in Nexus can invoke this action to generate images using supported image generation models.

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Supported Models

ModelProvider
GPT Image 1.5OpenAI / Azure OpenAI
GPT Image 1OpenAI / Azure OpenAI
DALL-E 3OpenAI / Azure OpenAI
Nano BananaVertex (Google)
Nano Banana ProVertex (Google)

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Configuration

1

Navigate to Image Generation

Go to the Admin Panel and select Image Generation under the Configuration section.Image Generation Configuration Page
2

Connect a Model

The page displays available models grouped by provider (OpenAI, Azure OpenAI and Vertex).Click Connect on any model to configure it. A modal will open where you can set up credentials:
  • Use existing API key: Select from previously configured OpenAI API keys
  • Enter new API key: Add a new OpenAI API key
The last configured model will automatically become the Current Default.
3

Manage Default Model

The model marked as Current Default is used when users request image generation in chat.
  • To remove a model as default: Click the “Current Default” badge on that model
  • To edit credentials: Click the settings icon (gear) to open a modal where you can update the API key

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Using Image Generation

Once image generation is configured with a default model, any AI model in Nexus can invoke the image generation action. When a user requests an image, the Agent will automatically use the configured default image generation model.