With AI in development, humans are capable of creating superior beings
It is just a more sophisticated machine or s/w.
If we think in that angle even a telescope is a superior eye as it can see longer than a human. We never consider it as a superior eye which some use at times.
A nature created being which exists would be more relevant to this question than a man made stuff.
The difference between a simple machine, even a computer controlled one working off of a program, and one driven by a general AI is that a human did not have to be involved in the task at all. General AI, like the current purpose built AI, will be able to learn from first principals. That means they will be able to select and perform their own tasks once they are mature enough, just like us.
It is important to note that a real general AI has not yet been created. The technology is getting ever closer, though. It is only a matter of time before there is a break-through moment.