Their AI is pretty good, both assistant and search summaries. Been using it extensively as it actually provides correct and objective information (at least more often than others). It is also privacy-first, so you don't get those annoying personality shifts as with like GPT.

Kagi's summaries are great.

They're hidden by default, requiring you to click the button first. They don't extrapolate too much. And their sources will be the exact same links you got from the search.