A Google/Bing like SharePoint Online Search Experience

[nhtkid]

Hi Team,

I am looking for some guidance on how to build an AI infused SharePoint search experience.
I would like a similar experience like nowadays Google/Bing that when you perform a query on SharePoint home site, it will provide an AI summary first, with citations, followed by the traditional SP search results.

I know we probably can't make modifications to the existing SharePoint search box, which means we need to build a web part to mimic the look of SP search box. But in terms of the search result, I don't know how to bring the AI summary and conventional search results together.

I wonder how Google/Bing implemented.

Any ideas are welcome.
Thank you all!

nhtkid