You can still do that sort of thing, but just have it perform searches whenever it has to deal with a matter of fact. Just because it's trained for tool use and equipped with search tools doesn't mean you have to change the kinds of things you ask it.
I guess that way of thinking may foster amazement, but it doesn't seem very grounded in how these things work or their current capabilities. Seems a bit manic tbf.
And again, enabling web search in your chats doesn't prevent these models from doing anything "integrative reasoning", so-to-speak, that they can purportedly do. It just helps ensure that relevant facts are in context for the model.
I frankly feel people don't spend enough time with ChatGPT 4.5... like, if you haven't yet found use cases that it can do that the other models can't even come close to, are you really using AI effectively?
LLMs are not encyclopedias.
Give an LLM the context you want to explore, and it will do a fantastic job of telling you all about it. Give an LLM access to web search, and it will find things for you and tell you what you want to know. Ask it "what's happening in my town this week?", and it will answer that with the tools it is given. Not out of its oracle mind, but out of web search + natural language processing.
Stop expecting LLMs to -know- things. Treating LLMs like all-knowing oracles is exactly the thing that's setting apart those who are finding huge productivity gains with them from those who can't get anything productive out of them.