Dreamer 4

Danijar Hafner's Dreamer series of world models, culminating in Dreamer 4, demonstrates that robots can learn complex tasks from offline data alone, with Dreamer 3 being the first to autonomously solv…

Danijar Hafner, creator of the DreamerV3 AI that autonomously mined diamonds in Minecraft, left Google DeepMind on November 3, 2025, to launch a stealth startup in San Francisco's SoMa district focuse…

Researchers at a major AI lab trained a 350M-parameter generative world model on 210 tasks and found that hallucination in world models is predictable and preventable, primarily a data-coverage proble…