
Apps like Dall-E 2, Stable Diffusion, and Midjourney allowed us to convert a text description into a detailed image. Then ChatGPT let us spin a story from a prompt. Now, Runway Gen-2 is combining both aspects — creating moving images to tell a story.
But they are very short stories, limited to four seconds. And the videos often produce freaky, surrealist effects that were not called for in the prompt: a ball of yarn with a wagging tail, a cat whose body melts away, a horse with a bicycle wheel.