Nearly two years since the Pentagon started bringing artificial intelligence to the battlefield, the algorithms still need human help, a top U.S. Air Force general said Tuesday.

But Gen. Mike Holmes said the technology is getting better at identifying people, cars, and other objects in drone video. He also sees promise in other AI applications, like predicting when parts on planes will break.

“[W]e’re still in the process of teaching the algorithms to be able to predict what’s there from the data and be as reliable as we would like it to be or as reliable as our teams of people [who] are doing that,” the Air Combat Command leader said Tuesday at a Defense Writers Group breakfast.