World Models Are Taking Over

This was a huge month for simulated worlds. The vibe shifted from “make pretty video” to: build systems that can live inside a world.. Here's the list of World Model worth mentioning:

• Project Genie: playable worlds from text prompts (rolling out to Google AI Ultra subscribers in the US).
• World API (World Labs): persistent 3D worlds from text, images, video.
• D4RT (DeepMind): unify video into full 4D (space + time) representations.
• Roblox 4D generation powered by Cube Foundation Model (beta).
• Alibaba’s LingBot-World (open-source Genie competitor) getting attention.
• Hot take making the rounds: “World models, not video generation models, will dominate AI in 2026.”

Why it matters? Agents that can reason are good. Agents that can reason inside a stable world are the foundation of robotics, game economies, simulation-heavy science, and eventually: autonomous businesses.

Yann LeCunn is the strongest anti-LLMs advocate, he thinks World Model are the right direction, because models to be AGI need to predict the outcome of their actions.

Sources: deepmind project genie, worldlab AI, tweet 1, DeepMind Teaching AI to see the World in 4d, tweet 2, roblox tweet, Alibaba Tweet, hot take tweet, Yann Tweet