A philosophical zombie can behave and appear indistinguishably human, yet remain without consciousness.
So if your AI can behave and appear indistinguishably human, yet remain without consciousness, that could classify as a (behavioral) philosophical zombie.
That said, you've just claimed that the AI wouldn't have consciousness. If they can behave and appear indistinguishably human, one might posit whether there is any difference them and humans, with respect to consciousness (i.e. that either both have consciousness, or neither does).
If such AIs were created, this would certainly do a lot of damage to dualism and the idea of some sort of non-emergent or non-physical consciousness. That would be about as close as we can get to falsifying dualism (even though dualism seems fairly absurd from a scientific point of view, given modern scientific knowledge, and it's strictly-speaking unfalsifiable, with no supporting evidence).