I appreciate your request, but I notice the context provided ("Wikimedia category") is too brief for me to write an accurate overview of "Category:Categories by language" without inventing details. To fulfill your requirement of basing my answer ONLY on provided context and not inventing facts, I would need more substantial information about this specific category's purpose and structure.
AI-generated from the Wikipedia summary — may contain errors.
via Wikidata · CC0
via Wikidata sitelinks · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).