Image classification in Chat GPT 4 is. It working. Am I getting something wring

Hi. I’m a newbie and hope somebody can point me in the right direction.

I have just signed up and paid to GPT Plus to get access to GPT-4 and specifically the image classification service.

I am asking it to describe an image and linking a URL as per the online example video but all I get is “as a language based…… I can’t understand images”.

Isn’t that exactly what I have just paid for?

Anybody have any ideas what I’m doing wrong.