World Labs, a startup co-founded by Stanford A.I. pioneer Fei-Fei Li earlier this year that quickly grabbed the attention of high-profile investors, has remained relatively quiet on its products—until now.

Stanford professor Fei-Fei Li, dubbed the "godmother" of AI, on Monday released an early peek at what her AI startup has been working on: an engine that can turn still images into realistic three-dimensional worlds.

World Labs wrote in a thread on X that its new AI system works by taking an image, approximating 3D geometry, and filling in the scene so that there's more to see. The AI adapts t