Video Extend is an online AI video extender for creators who need a natural next beat when a clip ends too early. Upload a short video or image, choose among integrated models (Kling, Veo 3.1 Fast, Wan, Pixverse, Luma, Hailuo), and continue the shot while preserving motion, subject, and atmosphere. Adjust duration and aspect ratio for landscape, square, and vertical edits. Review estimated credit cost before generating.