If it manages to be "relatable," it does so at the expense of a great deal of precision. OP doesn't explain his choice of wording, and it does not match any usage of "vibe." that I'm familiar with. Was "gist" not trendy enough, I wonder?
“Gist” to me implies accuracy, and has a meaning in GitHub, whereas the averaged embedding of 512-character chunks of text is more, uh, impressionistic.
