a16z Podcast Fei-Fei Li: World Models and the Multiverse
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Jun 4, 2025 
Fei-Fei Li, cofounder and CEO of World Labs, is known as the 'godmother of AI' for her groundbreaking work in data-driven AI. In this conversation, she discusses the critical need for spatial intelligence in AI and how her company aims to develop world models that understand 3D environments. The dialogue delves into the limitations of current language models, the intersection of language and spatial navigation, and the future potential of embodied intelligence in robotics and creative fields.
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Spatial Intelligence is Core
- Spatial intelligence, the understanding of 3D space, is a critical and fundamental part of intelligence beyond language.
- It enables humans to perform many tasks that language alone cannot capture or express.
Origin of World Model Vision
- Fei-Fei Li and Martin Casado independently arrived at the intuition that AI needs a world model.
- Their meeting and deep definition of a world model confirmed their unique aligned vision.
Limitations of Language Models
- Large language models are powerful for language but insufficient to understand and navigate the 3D physical world.
- True general intelligence requires spatial understanding beyond linguistic capability.