Kagi Assistant gives me blatantly false information stated as fact for... I'd estimate about 85% of queries, even when asked very pointed queries.
Every query requires contradicting the response and forcing it to go and actually look things up instead of just spewing out straight hallucinations or information from years ago that's no longer valid.
Worse is the typical confident tone in which it states obvious falsehoods. The number of times I've read, "You're right to push back," or "That's fair, let me check instead of guessing" is outrageous.
EDIT: Here's just the most recent query since I posted this comment, for example:

Even when I've asked questions with a suffix like "in 2026" I've had similar results....