the fact that it answers questions like Q: Who was president of the United States in 1955? accurately itself will tell that it is an AI. I guess the whole idea

the fact that it answers questions like Q: Who was president of the United States in 1955? accurately itself will tell that it is an AI. I guess the whole idea that an AI shouldn't be different from a human to say that it is generally intelligent implies, the AI has to fake its answers to behave like a human. And this means it is not something a desirable trait for an AI as we have enough real humans who can easily sound more human than an AI.