Existing generative AI models are built on batch processing: You give the system instructions; it runs computations; then spits back the results.

Now comes a Silicon Valley startup that says it can produce gen-AI video (and other outputs) in real time — a potentially groundbreaking advance: San Francisco-based Reactor, co-founded by Alberto Taiuti and Bryce Schmidtchen, two former technical leads for the Apple Vision Pro AR/VR headset.

The duo have a vote of confidence from Jeffrey Katzenberg, the Hollywood mogul turned investor, who has taken a stake in Reactor through his WndrCo holding company. Reactor has raised a $59 million round of Series A funding led by Lightspeed Venture Partners, with participation from investors including WndrCo, Amplify Partners, Sky9 Capital and FPV Ventures.

Katzenberg says that when he met with Reactor founders and saw their demo, “I was incredibly impressed, if not astounded, by just how innovative their approach is to storytelling tools.”

“Literally every facet of the production pipeline can be enhanced using these tools: live action, TV, film, commercial work, animation – any visual medium can be enhanced by the applications from Reactor,” he says. With the funding, Katzenberg will join Reactor as a board observer.