Reactor emerges from stealth with $59M led by Lightspeed to power real-time AI world models
Ex-Apple Vision Pro leads Alberto Taiuti and Bryce Schmidtchen debut a developer platform for real-time generative video and world models; AWS named preferred cloud provider and SDK/API available today.
By Ryan Merket · Published
Why it matters
If Reactor can actually deliver near-zero latency AI video generation, it unlocks new classes of interactive products for agents, gaming, and live creation. A $59M seed-plus-A led by a top firm signals investor conviction that the World Model stack needs purpose-built infrastructure.
Reactor, a developer platform for real-time generative video and world models, emerged from stealth with $59 million led by Lightspeed Venture Partners, with participation from WndrCo, Amplify Partners, Sky9 Capital, FPV Ventures, and other investors, according to a press release.
https://x.com/reactorworld/status/2060015607928819876
The company was co-founded by CEO Alberto Taiuti and CTO Bryce Schmidtchen, both former technical leads on the Apple Vision Pro. Taiuti previously co-founded Luma AI, where he served as CTO.
Reactor positions itself as the infrastructure layer for real-time world models, providing a unified SDK and API that lets developers build interactive applications without managing the complexity of deploying and operating these systems at scale. The company is targeting media and entertainment, physical AI, and robotics use cases.
"We are building the critical layer between the model labs and the developers who want to create with them," Taiuti said in the release.
Reactor said world model developer Overworld is already building on its platform. The company is working with partners across media and entertainment and physical AI, with active demand from film and television studios and robotics companies. Jeffrey Katzenberg, founding partner at WndrCo, will join as a board observer. The broader team includes alumni of Apple, Netflix, Meta, Google, Adobe, Replicate, and Microsoft.
Reactor named Amazon Web Services as its preferred cloud provider to support the latency, scale, and reliability requirements of real-time generative video workloads.
The platform is available today via SDK and API. Pricing is usage-based, billed by model type. Developers can get started at reactor.inc.