Happy Oyster

World Model by Happy Oyster The world is your Oyster. Open it.

Happy Oyster is an open-ended world model product for real-time world creation and interaction. Built on a natively multimodal architecture, Happy Oyster supports multimodal understanding together with joint audio-video generation. Unlike traditional AI video tools that follow a one-shot workflow of "write a prompt, wait for rendering, receive a finished clip," Happy Oyster keeps listening and responding throughout the generation process. The scene reacts in real time and continues to evolve as the user keeps giving instructions.

Capabilities Directing Directing turns users into real-time directors, letting them transform ideas into reality inside an endlessly evolving video stream.

What Happy Oyster generates is not just footage, but a running physical world where lighting, gravity, character motion, and scene causality remain continuous and coherent over time. On top of that world, users can step in at any moment, using text, voice, or images to switch camera angles, direct characters, or alter the course of the story. The world responds immediately and continues unfolding in line with those instructions.

Wandering Wandering turns users into explorers, allowing them to freely move through infinitely extendable worlds.

With just a line of text or a single image, users can generate a complete physical world where object placement stays stable, the environment persists over time, and viewpoint and lighting respond continuously as they move. Users can roam in first-person, freely change direction and camera movement, and move beyond the original frame while the world keeps generating and remains coherent.