The Seamless Canvas: Unlocking Runway Gen-4’s AI Video Editing and Stitching Capabilities

The evolution of generative AI video has often felt like a series of brilliant, isolated explosions. For the past few years, creators could prompt stunning 4-to-5-second cinematic bursts, but gluing those fragments together into a coherent narrative was a messy puzzle. Seams showed, characters morphed unpredictably between cuts, and the editing suite remained a battleground of manual masking and color grading.