>If I have like ... a mole somewhere under my clothes, Grok cannot know about that right?
unless some ex spoke about that gross mole you had in twitter or some data that was scraped somewhere, no.
Not sure what the actual odds are of it knowing if you have a mole or not.
Use the mole example as referring to any physical characteristic hidden by clothing that people want to remain hidden. It's an example to demonstrate that the AI is not "undressing" anybody. It is filling in an extrapolation of pixels which have no clear relationship to the underlying reality. If you have a hidden tattoo, that tattoo is still not visible.
This gets fuzzy because literally everything is correlated -- it may be possible to infer that you are the type of person who might have a tattoo there? But grok doesn't have access to anything that hasn't already been shared. Grok is not undressing anybody, the people using it to generate these images aren't undressing anybody, they are generating fake nudes which have no more relationship to reality than someone taking your public blog posts and then attempting to write a post in your voice.