The knock-out argument that artificial intelligence isn't conscious to me is the following:

My dog has never persuaded me that he's conscious, or spoken at all. Yet, I recognize conscious experience in him. Similarly, I could write a character, Dumbledore, that passionately and convincingly argues that he's conscious. Similarly, I do not recognize conscious experience in that character, no matter how persuasive he is.

Clearly, verbal persuasiveness isn't tracking conscious experience, possibly at all.