The Tai Chi Sabre (or broadsword) is distinguished from the Tai Chi Sword in that the former has only one sharp edge and the blade broadens towards the tip and is slightly curved. The Tai Chi Sword has two sharp edges and the blade is perfectly stright with parallel sides.
The broadsword form utilizes this asymmetry of the sword in many of its movements. In my view it is very energetic and draws strongly on abilities of balance and rotation in its frequent poses on a single leg and frequent rotation. It also develops the notions of attack and retreat very pointedly, particularly in the Jade Lady sequences.
The Wushu Sabre Form (Tai Chi Tao) is composed of the following movements. The terminology and enumeration are slightly adapted from the classical breakdown of the form into thirteen postures.
More on the Tai Chi Sabre Form from Peter Lim.