San Francisco-based startup Reactor has secured additional funding from Nvidia and Sapphire Ventures, bringing its total Series A investment to $74 million. The company previously raised $59 million upon exiting stealth mode on May 28, 2026.
Reactor provides a developer platform featuring an SDK and API designed to enable real-time generative video and world model integration. The infrastructure supports performance exceeding 60 frames per second with latency below 40 milliseconds.
The platform architecture relies on a proprietary inference engine, a global GPU cloud, and a specialized streaming layer. Reactor targets customers in media, entertainment, physical AI, and robotics sectors.
The startup maintains partnerships with AWS and research labs such as Overworld. Co-founded by former Apple Vision Pro technical leads Alberto Taiuti and Bryce Schmidtchen, the team includes talent from Google, Meta, and Microsoft.
