Absolute pitch (the proper name) is a spectrum. I have it myself, but my abilities pale in comparison to some others. While I have no problem identifying single

Absolute pitch (the proper name) is a spectrum. I have it myself, but my abilities pale in comparison to some others. While I have no problem identifying single notes and smaller chords, others can immediately name 10+ note chords. There's also the question of range: I'm hopeless at the extremes of the piano while others have no problem. Many musicians are able to memorize the tuning note A440, for instance, which suggests absolute pitch is not simply a boolean property of our brains but rather an ability that can vary (and be improved) like relative pitch. That being said, I do think those perfect pitch courses you see on Amazon are mostly snake oil.