How is it possible to proxy the great search capabilities of ChatGPT or Claude?

Using local model is good for offline work. But what about online work? For example, stock research. SEC data, live market data, regulatory changes, etc. A lot of things that are not necessarily top google results (where a lot of times the top results are SEO garbage too), are buried in deeper places online, sometime behind paywall, sometime behind CloudFlare anti bot - and the list goes on and on. I am curious about how (if) do you handle that? Is it worth the dev time? Are result decent? Is it cheaper? When thinking about it deeply, maybe 20$ a month for a top quality model in a loss-leader environment is a great offer.