Search "best AI building management system" and you get a leaderboard. Leaderboards sell ads. They do not survive contact with your building. Here is the comparison that does: not which platform wins, but which questions decide.
Most "AI building" pitches fail the same way: a confident demo, a number with no method behind it, and a contract that quietly makes the vendor's mistakes your problem. Here is the checklist we use before we trust one.