Best closest I stumble on is nouswise. Lets you contain an agent with even more sources and generate almost all outputs.
Like how many sources? And what you mean by sources (tables pdfs...)?
I have several projects with lots sources (800+). I mostly work with webpages, papers and youtube videos. It also supports mcp if you want to connect something.
No pricing, "call for demo". Not sure this is for personal use.
I use it for personal use. They have 3 plans, 1 free 2 paid.
Or maybe just a way to use chatgpt/Claude with files , and get accurate references to the page/paragraph in the source?
It's cumbersome to have llm duplicate all quotes and still get good response. Else you get no visibility into your sources.
Claude/ChatGPT still end up making things up when they can't find anything, notebook is much better to 99% reply based on quotes.
But yes a backup is to use Claude and grep, but not quite the same.
Microsoft Copilot in the Enterprise has is notebook feature