Komodo skill levels and Elo rating

I'm probably howling into the void here, but does anyone have a decent handle on what the levels on Komodo (as implemented here on chess.com) really mean?

Clearly the Elo numbers quoted are massively optimistic, by hundreds of points (at least around level 20ish). I'm wondering what they are based on.

This information is from Dragon, so is a bit higher than Komodo is, but should be in the ballpark.

• Dragon will drop about 125 elo for each point drop in Skill below 23 (24 to 23 drop is perhaps 200, 25 to 24 depends on time limit). Our intention is that for quick games (10 min, or 5 min + 5 sec increment) even a virtual beginner (say Elo 250) should be fairly matched with level 1, while the World Champion should have a tough time with level 23 (est. 3000 at 5’ + 5”). (Level + 1) * 125 would be a good estimate based on chess.com games. 

That may be what it says, but it just isn't plausible. It was playing really poor opening moves at level 20-21.

Check out move 3 in this game:

https://www.chess.com/analysis/game/computer/178378483?tab=explore&move=5

The only way a human over 1500 would ever play that move is a mouse slip.

The device is also going to have an impact on how well any given not plays, as they run locally. I also don't think there's an opening book being used for the base engine, though I could be wrong.

Except that part as the Martin_Stahl say:

Komodo will drop about 125 elo for each point drop in Skill below 23 (24 to 23 drop is perhaps 200, 25 to 24 depends on time limit)...

Exist that part:

Levels 1 and 2 will not use the opening book. Level 3 will only use the book for one move. Each level above this will use one more move for each side of the opening book. Note that this refers only to “own book”, so any outside opening book should be turned off for this book depth feature to work properly.

The engines take books, so what book play is based what book use and how deep in moves is.

Take your favorite engine, stockfish, dragon, komodo, other:

https://stockfishchess.org/

https://komodochess.com/downloads.htm

take you favorite book:

https://sites.google.com/site/computerschess/download

i suggest this 2, is The best opening books i have ever find:

01.04.2023: Perfect 2023 Opening Books

27.04.2023: Balsa v270423 Opening Suite

or this 2:

https://digilander.libero.it/taioscacchi/programmi/saros-page.html

Titans Book

Human Book

Take your favorite program to run the engine, one is this, also you can make your book on this program, very easily:
https://lucaschess.pythonanywhere.com/

and put your favorite engine level and book depth!!!