Maybe I'm simplifying, and I haven't used it. But it looks like you are basically paying for an anonymized (maybe, since you need an account) proxy to google. https://help.kagi.com/kagi/search-details/search-sources.htm.... Getting 10 year old flickr images is great, I'm sure. But probably the most relevant search results still come from google.
> But it looks like you are basically paying for an anonymized (maybe, since you need an account) proxy to google.
Well the whole point is to pay for the product instead of being the product. I am very happy with Kagi, but I mostly pay to show that there is a market for that business model.