I haven’t tried putting images in the knowledge base, but I’ve had good success with putting instructions in the prompt that the bot should display certain images if certain topics come up in the conversation.
Example:
- If someone asks about [topic a], show them this image: https://anywebsite.com/pixA.jpg
- If someone asks about [topic b], show them this image: https://anywebsite.com/pixB.jpg
etc
Also see: How to render images inside a chat