Cutting Edge vs. Leading Edge. Bleeding edge is generally defined as newer, more extreme, and even riskier than technologies on the cutting or leading edge. For that reason, some companies prefer to play it safe by marketing products that fall under the category of bleeding edge as cutting edge instead.
The tip of a knife is known as the bleeding edge. The tip pierces and breaks through. The cutting edge is the part of the knife that does most of the work.
Via Constant Tech