How Glance automates long-form to vertical video clipping with AI

Glance faces a scaling problem familiar to any platform sitting on long-form video: thousands of hours of new podcast, news, and movie content arrive daily, but mobile audiences consume short vertical clips on lock screens.

Manual editing can’t keep up with projected volume growth from 3,500 to over 10,000 videos per day, and a simple center crop destroys narrative context.

The core tension is that converting 1-2 hour landscape footage into 30-180 second portrait clips requires intelligent scene understanding—knowing who is speaking, when to split interview panels, and how to preserve conversational flow.