at the cutting edge of something

at the cutting edge of something

or

on the cutting edge of something

COMMON If something is at the cutting edge of or on the cutting edge of an area of activity, it is one of the most advanced developments in that area. No designer can be at the cutting edge of the fashion industry for more than 15 years. The company has always prided itself on being on the cutting edge of computer technology. Note: You can also simply talk about the cutting edge of a particular area of activity. This is the cutting edge of medicine. Note: You can also use cutting-edge before a noun. These were the men and women doing the cutting-edge research. These are cutting-edge technologies and we must support them.
See also: cutting, edge, of, something