Image Generation
Create visuals according to user prompts
These instructions describe the school web app. Models, actions and class access depend on school setup. Native app controls and release availability can differ.
Overview#
The image generation feature allows users to create PNG images according to their prompts which can be rendered in the chat and easily downloaded.
Configuration#
Currently, Nexus supports five models for image generation, through OpenAI, Azure or Vertex (Google). In the future, we will be adding support for other options such as Stability AI.
GPT-Image-1.5: Newest model, best for production-quality generation, with strong prompt control and reliable in-image text/structured layouts
GPT-Image-1: Newer model, better prompt adherence. Likely a better default for most use cases.
Nano Banana: Flash Gemini model designed for fast and efficient image generation. Great for fast, creative exploration and simple tasks.
Nano Banana Pro: Advanced Gemini model with professional and high-fidelity 4K output. Great for complex tasks where consistency and details are key.
DALL-E 3: Older model, slightly better for more imaginative and rich styles.
Usage#
Configure your image generation models in the Admin Panel under Configuration → Image Generation.
Once configured, you can invoke the Image Generation action from any Agent or AI model in Nexus.
Be explicit in prompting for specific Actions you want your Agent to invoke.
In a school deployment#
Image generation is available to a student or teacher only when all of these are true:
An image provider is enabled for the school.
The class allows image generation.
The class is in Full answer with critique mode. A class in hints or guided mode is refused even when image generation is allowed for that class.
The school subscription is active and has allowance left.
School conversations reach image generation through the same Image Generation action. The class policy, the answer mode, and the allowance are checked on the server.