Fei-Fei Li on Spatial Intelligence and Robotics

July 28, 2026

AI Summary

5 min read

World Labs, the two-year-old startup founded by renowned AI researcher Fei-Fei Li, recently acquired robotics company Cinex. In this conversation, Li and Cinex co-founder Yunchu Li explain why this wasn't a pivot but a natural convergence. The core thesis: the next frontier of AI is not just language but spatial intelligence—the ability to generate, understand, reason with, and act within physical and virtual spaces. Cinex’s technology, which builds high-fidelity digital twins of real environments for robot training and evaluation, slots directly into World Labs’ ambition to build "large world models." The two founders walk through the technical and philosophical underpinnings of this vision, the role of simulation versus real-world data, and why the path to useful robotics runs through semi-structured environments, not your living room.

What Spatial Intelligence Actually Means

Fei-Fei Li sets the stage with a clear distinction: language models transformed how AI handles words, but the next leap requires teaching AI to handle the physical world. This is what she calls spatial intelligence—the ability to perceive, reason about, and act within three-dimensional space, whether that space is a factory floor, a video game world, or a virtual reality environment.

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What you'll learn

1 (01:49) **Fei-Fei Li Defines Spatial Intelligence** - The World Labs founder explains the core concept behind the company and the next frontier of AI.
2 (04:04) **Yunchu Zhang Introduces the "Real to Scene to Real" Pipeline** - The Cinex co-founder describes his company's approach to solving robotics data bottlenecks.
3 (05:51) **The Surprising Origin of the Partnership** - The acquisition began with Cinex as a customer of World Labs' generative model, Marble.
4 (06:21) **Marble: World Labs' 3D Generative Model** - A quick overview of the core technology that attracted Cinex.
5 (07:35) **Complementary Strengths: World Labs + Cinex** - A breakdown of what each team brings to the combined entity.
6 (09:57) **Why Cinex Joined World Labs** - The strategic rationale from Yunchu Zhang's perspective.
7 (11:10) **The Path to a Foundation Model for Robotics** - Discussion on whether World Labs will build a general-purpose model for physical action.

+ Full timestamped outline available in the app

Guests on this episode

Fei-Fei Li

Show Notes

Last week, World Labs announced its acquisition of SceniX, bringing together two teams working on one of AI's biggest unsolved problems: how to give machines a true understanding of the physical world.

Martin Casado sits down with Fei-Fei Li, co-founder and CEO of World Labs, creator of ImageNet, and pioneer of spatial intelligence, alongside Yunzhu Li, co-founder of SceniX and assistant professor at Columbia University. They discuss why World Labs acquired SceniX, how simulation can unlock the next generation of robotics, and why training robots may require a fundamentally different approach than training language models.

The conversation explores real-to-sim-to-real pipelines, world models, robotics foundation models, evaluation, synthetic data, and why the future of AI depends not just on understanding language—but on understanding and interacting with the physical world.

Resources:

Follow Fei-Fei Li on X: https://x.com/drfeifei

Follow Yunzhu Li on X: https://x.com/YunzhuLiYZ

Follow Martin Casado on X: https://x.com/martin_casado

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