It's hard to be sure, but Quantum Computing is useful only in a few specific problems, for example to calculate the Fourier Transform, because it's easy to para

It's hard to be sure, but Quantum Computing is useful only in a few specific problems, for example to calculate the Fourier Transform, because it's easy to parallelize and each part needs a very similar operations. With some clever trick, this can be used to factorize numbers. But it's not clear how to se it to solve arbitrary problems, so I guess a quantum AI is very difficult.