No, their output can mimic language patterns.
> If they aren't, you need a really good argument that shows how they differ from humans or you can take the opposite route and question the consciousness of most humans.
The burden of proof is firmly on the side of proving they are conscious.
> I currently hold the opinion that they are conscious.
There is no question, at all, that the current models are not conscious, the question is “could this path of development lead to one that is”. If you are genuinely ascribing consciousness to them, then you are seeing faces in clouds.