The tech is pretty grown up at this point... If you open up snapchat and hold down on your face while the selfie camera is active, a lot of masks will show up that change your face in real-time. One of these swaps your gender (and does a pretty good job of it to be honest). And this is just running on a phone (including android where there's no AI chip like in iphones), I'm sure with a computer you can do much better!