Oasis is an interactive, AI-generated world model jointly built by the startups Decart and Etched, announced on October 31, 2024 and described by its makers as the first realtime, playable, open-world AI model. It presents a Minecraft-like environment in which a player can move, jump, collect items, and break blocks, but there is no traditional game engine underneath; each frame is predicted by a neural network in response to the player’s keyboard and mouse input.
Architecturally, Oasis combines a spatial autoencoder based on a Vision Transformer with a latent-diffusion backbone based on a Diffusion Transformer, generating frames autoregressively while conditioning on user actions. To keep long play sessions stable, it uses a dynamic-noising technique that adds noise early to limit error accumulation, then reduces it to preserve detail. A 500-million-parameter model was released publicly with weights, a larger checkpoint powers the live demo, and the system runs at 20 frames per second, with the team noting it was optimized for Etched’s specialized Sohu transformer chip.
Oasis put the abstract idea of a neural world model into a hands-on, playable demo that anyone could try in a browser, making the concept concrete in a way papers alone could not. For a general reader, it dramatizes both the promise and the limits of the approach: the world genuinely responds to your actions, yet it also drifts and hallucinates, a vivid illustration of how far generative world models have come and how far they still have to go.