I recently bought a 6800 piece LOZ Block set (Chinese Nanoblock knockoff). I was wandering if there are sets in any block size or brand that have more pieces than that?
Brickset has a query for sets with most pieces: brickset.com/sets/query-45
Top of the list is Taj Mahal with 5922 pieces.
Certainly not from the Lego camp, in terms of commercially released consumer sets. As far as I can remember, the Taj Mahal from 2008/9 had something around 5900 pieces, and is no longer available to buy new.
The obvious update for this question is the LEGO 75192 Millenium Falcon with 7,541 pieces.
I wonder whether LEGO has plans for a 10k-piece set, maybe also the Millenium Falcon :)