I configured AI Engine’s ChatBot using Settings > Chatbots with a chatbot called WP-Pompey that operates in Images mode. This talks to DALL-E 3 to produce images of 1024×1024 pixels.
The ChatBot appears as a popup from an icon in the bottom right. I set this as the Site-Wide chatbot. Alternatively I could have used the shortcode
My prompt was simply
This screen capture was taken after the image was generated.