Reactor, a developer platform for real-time generative video, announced on May 28 that it has emerged from stealth with $59 million in funding led by Lightspeed Venture Partners, along with participation from WndrCo, Amplify Partners, Sky9 Capital, FPV Ventures, and other investors.
The company is building an infrastructure layer aimed at making real-time world models accessible to developers. This technology is intended to enable interactive artificial intelligence applications across media and entertainment, physical AI, and robotics. Reactor’s platform offers a unified software development kit (SDK) and application programming interface (API), allowing developers to build interactive applications without managing the complexity of deploying these systems at scale.
Alberto Taiuti, co-founder and CEO of Reactor, said: “World models are redefining what AI can do, moving from systems that generate content in isolation, to ones that perceive and respond in real time. We are building the critical layer between the model labs and the developers who want to create with them. This is about enabling a new form of media; one where experiences that weren’t previously possible are generated live, and anyone can build and distribute them.” The team includes engineers with backgrounds at Apple Vision Pro as well as experience from companies such as Netflix, Meta, Google, Adobe, Replicate, and Microsoft.
Bucky Moore of Lightspeed said: “Real-time video models are currently inaccessible to developers due to a lack of infrastructure that can reliably serve them. Alberto, Bryce, and the team bring a rare combination of real-time systems expertise and product vision to this problem, and we believe Reactor is well positioned to become the foundational platform in this new category.” Jeffrey Katzenberg of WndrCo will join Reactor as a board observer.
Reactor’s partners include Amazon Web Services (AWS), which will be its preferred cloud provider for compute infrastructure needed for global scale deployment. Jason Bennett of AWS said: “Reactor’s real-time video platform demands inference infrastructure that can deliver at the speed of interaction, not just the speed of generation, and AWS is unmatched in solving for the latency, scale, and reliability that these workloads require… AWS is uniquely positioned to help platforms like Reactor scale real-time generative video economically to developers everywhere.” Amazon provides services including online shopping, cloud computing, streaming entertainment, digital devices, and advertising, according to its official website.
The Reactor platform is available via SDK and API with usage-based pricing billed by model type.