If anyone's wondering how this works, it looks like[1] Gemini + guardrails:

> Google is proud to be named a technology partner in this vital initiative, leveraging Gemini to help more than 100 million people access critical public resources with greater speed and ease

[1] https://blog.google/company-news/outreach-and-initiatives/pu...

This makes sense. I'm assuming that, for the AI search assistant, Google has worked plenty to refine data lookup and retrieval—they definitely have some internal tech that competitors don't.