Last year, Google showed off Genie 3, an updated version of its AI world model with impressive long-term memory that allowed it to create interactive worlds from a simple text prompt. At the time, Google only provided Genie to a small group of trusted testers. Now, it's available more widely as Project Genie, but only for those paying for Google's most expensive AI subscription.
World models are exactly what they sound like—an AI that generates a dynamic environment on the fly. They're not technically 3D worlds, though. World models like Genie 3 create a video that responds to your control inputs, allowing you to explore the simulation as if it were a real virtual world. Genie 3 was a breakthrough in world models because it could remember details of the world it was creating for a much longer time. But in this context, a "long time" is a couple of minutes.
Project Genie is essentially a cleaned-up version of Genie 3, which plugs into updated AI models like Nano Banana Pro and Gemini 3. Google has a number of pre-built worlds available in Project Genie, but it's the ability to create new things that makes it interesting. You can provide an image for reference or simply tell Genie what you want from the environment and the character.
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Source: Ars Technica
