The Summarize button is on the search results, therefore you don't need to visit a separate site and paste in the url. Additionally, you already know when a summary is available as the button only shows when it is. It is new but already I feel that it changes how you use a search engine having this feature available right there on the results.
The Kagi one said 'No summary available at this moment, please try again later.' for many of the urls I tried.
It does seem it's not able to do that.
>The Kagi one said 'No summary available at this moment, please try again later.' for many of the urls I tried.
I honestly find AndiSearch more finicky in not showing the "Summarize" button or giving error.
AndiSearch generates a good summary for every result.
https://andisearch.com/?q=google+chatgpt+clone
Maybe Kagi has HN hug of death but it returns the 'no summary available' message for me now.
what are you entering? It's not a search engine, you need to insert a link to an article, book, pdf, video etc... Look at the examples.