LLMs are intelligent in the same way books are intelligent. What makes LLMs really cool is that instead of searching at the book or page granularity, it searches at the word granularity. It's not thinking, but all the thinking was done for it already by humans who encoded their intelligence into words. It's still incredibly powerful, at it's best it could make it so no task ever needs to be performed by a human twice which would have immense efficiency gains for anything information based.