Google shows Gemini 4 Argon building a 3D island sandbox in AI Studio

Google says it used Gemini 4 Argon in Google AI Studio to build an interactive 3D island sandbox.

In a post on X, Google says each brush stroke simulates terrain, sand, and water physics in real time, using custom Three.js and GLSL shaders. The post is Google's own description of the demo; no independent testing or release details are reported.