Grok Imagine Video Edit & Extend applies xAI's Grok model to transform or continue existing video footage. In Edit mode, supply a video and a text description of the desired change — such as colorizing, restyling, or modifying scene elements — and receive an edited version at up to 720p resolution. In Extend mode, provide a video up to 15 seconds long and a prompt describing what should happen next to seamlessly append 2–10 seconds of new footage to the end of your clip.