MetaEarth3D: AI Model Generates 3D Earth at Planetary Scale

Researchers have introduced MetaEarth3D, a generative foundation model capable of spatially consistent 3D generation across the entire planet. The model addresses a critical gap in generative AI: while existing models excel at language and visual understanding, their spatial scale is limited to bounded environments. MetaEarth3D treats spatial scale as a core dimension of intelligence, enabling ultra-wide-area spatial intelligence for Earth observation and simulation. The model was announced in a paper on arXiv (2604.22828) and represents a shift from scaling only parameters and data to incorporating spatial scale as a new scaling axis in foundation models.