I don't have sufficient context to write an accurate overview of "Category:User pt-4." The context provided only identifies it as a "Wikimedia category" but contains no information about what this category actually contains, its purpose, or why it matters. I cannot write an accurate explanation without inventing facts, which you've asked me not to do.
AI-generated from the Wikipedia summary — may contain errors.
This Category is a list of Wikipedians who speak Portuguese at a near-native level, but are not native speakers of it.
To add yourself to this Category, simply add the template {{User pt-4}} to your user page. Or see Wikipedia:Babel.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).