According to Lichess eng database (based on 2020-2021 played data),
The highest Elo points belongs to Nezh-BOT: 4919 / 4970
That means with 98.97% win. percentage...

Due to my Lichess ranking is based on only latest months.. but if adding.. Nezh BOT's
Points were 3555 Elo, about + 400 Elo points better than ProteusSFX AI

Ok...if I was new in chess, I mean as a beginner.. I'd believe...

But I am not..since a long time I am in chess..+45 years...a serious period
In other words, there is perfect saying over these issues:
All that glitters is not gold
If still not so clear,
In reality...in our current planet...no way to get these high numbers,
Exception, via playing ONLY vs weak opponents...hehe...
In other words,
via Cherry Picking Method... it's like nothing but self-deception!
One thing more, I have a small announcement:
For those who are hunting for high Elo points...
COME to SCCT... you will be ranked much more..
Very likely over than 3700+ Elo..
And the most important..in a very short time.. and
In same time, with serious number of games (per player)...
What I can do more ?)
Have a nice day,
Sedat