Schema App has a new tool called Knowledge Assistant. Haven't tried it, but if it works as well as they describe, it sounds really helpful.

• Search/chat tool for your website
• Powered by Microsoft's NLWeb
• Users ask natural-language questions & get answers grounded in the website's Content Knowledge Graph (a knowledge layer that can govern multiple websites & other digital properties!)
• If the answer doesn't exist, it says so instead of hallucinating
• Can also be used by employees to find answers
• Lets you identify content gaps through its database of customer questions (super helpful)

There's a video on the page and a link to try a demo. I tried it out (I assume) in SchemaApp's own site search tool and it's pretty okay. It takes a little bit to give you an answer, which ends up being an overview summary statement, list of key facts, and previews of web pages it drew information from. Cool to know about.