That is not WAY tall for a seedling at that stage of growth, but it is a slight bit tall. What sort of lighting are you using? How far from the tops of your seedlings is your light? Do you use a quality reflective material?
It sounds like you might be a tad bit under-lit, lacking enough light to keep seedlings a bit shorter by the time they push out leaves. If you do not have a fan blowing a light breeze across your seedlings it would be good to add one. The movement of the stem causes it to grow thicker and stronger faster, which is a plus, but that also means some of the energy that would be used for more upward growth will be used for thicker stem growth and that will help keep seedlings a tiny bit shorter early on. If you are already doing that, then I think maybe increasing your lighting in some way or ways might be something worth considering.