YouTube is working on a tool called a “Bumper Machine” that can cut down a longer ad into 6 seconds.
This is all done automatically using machine learning. The Bumper Machine takes a 30 or 90-second ad and creates a 6-second bumper ad.
TechCrunch reports that YouTube is currently alpha testing the Bumper Machine.
Eventually, the current test will move to a beta test and ultimately a worldwide rollout.