Based on this alone, Kagi.

<https://techcrunch.com/2025/04/24/perplexity-ceo-says-its-br...>

The first answer is to try each one full time for a week and see which one is better for your use case.

For my part, I loved the eye candy on perplexity, but I caught it mixing up answers a few times and I lost confidence. The other part is that I felt passive in the search process, while on Kagi I am/feel empowered thanks to the advanced controls.

kagi has a free trial (100 searches) so you can just answer this very personal question for yourself.