How do I replicate ChatGPT's web search feature?

Hey,

I have been trying to replicate the web search feature as I am pretty sure there is no API access to it.

At the moment my application accepts queries from the user and uses Bing Search (from Azure) to get the results and summarize the “snippets” from those results using GPT-4o and then present it to the user.

However my search results never seem to be deep or as detailed as the one from ChatGPT.

Is it possible to do it without web crawling?

I simply cant find a definitive answer online anywhere.

Thanks