Why is PCGS priceguide so high on this 1822 large cent?

AI is like any other computer program. If you put garbage in, you get garbage out. It is only bigger and more sophisticated.

 

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I have no clue on these but it seems like certain scarce varieties might throw off the price guide and it's tough to toss a generic value on one. The finest known AU58 N-13 for example sold on Heritage in 2006 for $11,500. An N-6 AU58 sold in 2014 for $3818, and an N-4 for $2585. But those are the only three that have ever sold there for over $1700 so...

I would add insidious to that list of adjectives. I tested ChatGPT again last night for "Canadian 1947 maple leaf dollar" and it came back with nonsense. I told it that it was nonsense and why, because on another forum someone said it's still being "trained", so I figured I would see what happened when I tried to train it. It was apologetic, told me I was right, but still returned wrong information. This ended after 4-5 attempts to train it, with "Let me try once again, this time drawing on the correct and factual details based on reliable numismatic knowledge:" and continued to insist that the maple leaf was added because of a "flaw in the 7" (total bunk). It's insidious because it acts so authoritative about nonsense, people trust it, and it will be manipulated in other areas for bad reasons.