That is NOT a Hot Banana. It could be a Hungarian Hot Wax, but the pods are a little short and stubby for that as well.

The Sweet and Hot Banana Peppers will grow with the pods hanging down. That is how I know it is NOT a Banana pepper. The Hungarian Hot Wax is similar but has pods that grow upright like yours.

I am going to say it is a HHW and the stubby peppers might be a result of that small container the plant is in. It just might be stunted. That being said, in most respects, it will produce pods very similar to Hot banana in heat, shape, size and color.

Hot Hungarian Wax on the left........................Hot Banana on the right

I grew hot banana last year. they defininately didnt grow straight up like that. They look like in esox picture. I don't know what you have though.