Someone I know runs https://docsbot.ai/ and that seems like maybe what you're talking about?

I have looked around quite a bit but haven't really found anything that strikes the right balance for me of features, cost, effectiveness, etc.

I've been sort of building my own system in Go which is already a big improvement on the Python-based solutions, but it's nowhere near ready for this type of thing. But it uses Go-colly and go-readability for web scraping.

AWS Bedrock does it, but we had about 300 rows of CSV so it was faster to roll out our own. I spent a couple days wrestling with permissions on Bedrock, but if you're familiar with AWS, you may find it useful.

Take a look at Bionic https://bionic-gpt.com/

David sacks’ glueai app uses ragie.ai under the hood