The quality of the results are pretty much on par with Google because they use the Google Index (as well as others).
However, the secret sauce is the tools that Kagi gives you to improve the results even further. For example, you can boost and downrank whatever websites you want, they label AI-slop websites or websites with tons of ads, and you can narrow your searches with lenses.
The main index is Google but they have a ton of different sources, also they rejigger some of the results based on the number of trackers on the site, under the hypothesis that quality and ad tracking are inversely proportional.
The quality of the results are pretty much on par with Google because they use the Google Index (as well as others).
However, the secret sauce is the tools that Kagi gives you to improve the results even further. For example, you can boost and downrank whatever websites you want, they label AI-slop websites or websites with tons of ads, and you can narrow your searches with lenses.
The main index is Google but they have a ton of different sources, also they rejigger some of the results based on the number of trackers on the site, under the hypothesis that quality and ad tracking are inversely proportional.
i heavily use kagi and their result is definitely much better than google for uncommon queries, specially if technical.
google results is pretty much from sites that i have filtered out in kagi.