https://kagi.com/images?q=baby+peacock
...shows that infamous AI-generated peacock image multiple times on the first row of results.
Merely filtering out websites that tend to have lots of AI images does not prevent this failure case, since (for example):
https://birdfact.com/articles/baby-peacocks
has the fake image in there, as an example of "What does a baby peacock not look like?"
As Emily Bender has correctly pointed out, AI images are like an oil spill, and the cleanup (if such a thing is even feasible) will be challenging:
https://medium.com/@emilymenonbender/cleaning-up-a-baby-peac...
(edited to add that I'm a paying Kagi customer, and this failure case isn't a ding against my overall impression of what Kagi is, and I'll continue using it)