I'm an 1100 and I defeat the 1500 Wendy bot

Im at 900 only beat nelson highest record

Here's my last win over Wendy-Bot. The bots are over-rated, but it is hard to say by how much. I do wish they had a "bot-rating", like the separate ratings for bullet, blitz, rapid, etc, and ideally would keep track of the same for the bots themselves (which they could use "for show", so even if, say, Wendy-bot's rating dropped, anyone who plays it gains/loses their "bot-rating" based upon 1500. Eventually, Chess.com could use that information to try and tweak the bot settings so that they actually end up at the targeted value.
Anyway, here's the game, and I've left my analysis notes and thoughts in. Oh, and I'm old, so I often use description notation in my notes as it's what I grew up with. Old habits die hard.

im barely 1100 and i have beaten all bots up till the li bot

The bots perform a little below the raking they indicate they have, it's always good to beat bots with higher levels than us but chess.com should review the rankings and adjust the difficulty of the bots to something more realistic.

The bots "real feel" rating in my opinion is closer to 60% to 70% of their stated rating.

I just defeated Li bot (2000) in challenge mode and I'm only 990. I've also defeated other bots up to and including 2000 all in challenge mode, so the bots must be overrated.

What time control are you playing the bots at? The bots play the same regardless, but you of course play better the more time you have. My experience is that in 10-minute games, the bot ratings are "realistic". That is, I'm rated 1232 right now. I'll beat a 1200 bot about half the time, if we play 10-minute games. But in 30-minute games, I'm about on par with a 1600 bot. (5-minute games, I'm as good as a 1000 bot.) Your mileage may vary...

I wasn't using time controls with any bots over 1200. I'll try playing 10 min games and see what happens.

Check my game archive:
I’m 800 in BULLET and I’ve beaten unlocked bots up to and including Wally, but not Li (that’s my next target )

Yeah

Bots are not strong, I beaten Danny Rensch, Daniel Naroditsky, and even Judit Polgar bot.

Wally's tricky. I beat him 1 out of 4 games, but not with time controls. My best luck with him is playing Scandinavian defense.

I only beat Li once, but drew her a few other times.

I'm 600 and I beat Wendy in 30 moves.