Interview, Explained

In-depth breakdowns of tech interviews — section-by-section analysis with diagrams, quotes, and insights.

~10 min

Bloomberg Tech·2026-09-22

Fei-Fei Li on Why World Models Generate Worlds, Not Words

Fei-Fei Li· Co-founder & CEO of World Labs

Fei-Fei Li argues the next AI substrate is spatial intelligence — world models that generate navigable 3D worlds instead of words — and that the harder questions of safety, benchmarking, and governance are human problems to be solved at the ecosystem level, not left to any single lab or to fatalism.

MultimodalRoboticsAI SafetyAI Company

~44 min

a16z Podcast·2026-09-04

World Labs on new view prediction, a new base-model primitive

Fei-Fei Li, Justin Johnson & Ben Mildenhall· Co-founders

World Labs' Atlas model reframes 3D as new view prediction, a base-model primitive on par with next token prediction, unifying reconstruction and generation so a handful of photos can rebuild and re-film an entire scene.

MultimodalRoboticsTrainingAI Company

~66 min

The TWIML AI Podcast·2026-09-01

Justin Johnson on What a 'World Model' Actually Is

Justin Johnson· Co-founder

World Labs co-founder Justin Johnson says the term world model covers three distinct ideas, and argues spatial AI can use either explicit 3D representations or implicit models learned from data, rather than text prediction alone.

MultimodalReasoningTrainingAI Company