At one time some were claiming that one that could play chess better than a human would be expressing genuine artificial intelligence. Yet it turns out all you need to achieve that is the application of the refinement of some relatively basic algorithmic concepts and reasonably fast hardware. It's essentially a glorified version of adding faster than a human.
The latest goalpost is a system that can converse in a compelling fashion with a human (and we're nowhere near that yet, but getting into the details of the facade the most recent "turing test" success was is outside the scope of this post), but it will no more prove sentience than an AI's ability to play a good game of chess.
Once achieved, you'll be able to reset the system state, keeping a constant RNG, repeat the same conversations and get the exact same outputs. Or change the training set and see that reflected in a 1:1 way. It will look and feel decidedly artificial, because it is. And in my opinion, my initial question to you is probably unanswerable because I don't actually see any goal posts you can set where there is a genuinely compelling answer beyond the kick-the-can style intrigue of "Wow, what will it be like when we finally do this." Answer: "Pretty much the same as now."