I hear mostly Laurel, but at one point I did hear Yanny. I was actually able to trick myself into hearing both back and forth, as the track played over and over, just by saying/mouthing Yanny then Laurel.
Now back to all Laurel again.
My wife only hears Yanny - probably explains a lot. Haha
Here's something weird. I was listening to Here and Now on WAER in the car at lunch time and this story came on and it was 100% Laurel. Here and Now is on at 2:00 on WRVO and someone in the office has it on their computer and I was only half listening but I hear Yanni coming from across the room, then realized it was the same story I had heard earlier in the car. At any rate I can attest that they were both 100% annoying.