Google overview frequently cites webpages that don't include the keywords of a query.

This is Google, the most used search engine in the world, made by a company that is at the forefront of AI development.

ChatGPT, Claude, etc,. constantly generate answers without sources and rarely cite anything verbatim. I'm not sure if they could cite something verbatim even if they wanted.

Essentially none of these tools are appropriate for information.