[emw]

Wikipedia indeed seems the most valuable for ML, by far. Wikidata, Wikimedia Commons, and Wiktionary also seem useful there.

[resolutebat]

Wikivoyage is underrated and that was not helped by the acrimonious split with Wikitravel (which was acquired a predatory marketing company), but it finally seems to be pulling ahead.

[hehdhdjehehegwv]

One of my favorite LLM applications is getting them to write wikidata queries. The data is amazing, but the query language is nothing but pure hell.