Reactor

San Francisco-based developer platform for real-time generative AI video and world models — GPU provisioning, session orchestration, and sub-50ms-latency streaming infrastructure for interactive AI applications. Founded 2025 by Alberto Taiuti and Bryce Schmidtchen; raised a $59M Series A in May 2026 (led by Lightspeed Venture Partners). Sponsors and provides the runtime infrastructure behind OpenDreamer, an independent research project built by Diego Marti Monso, Francesco Sacco and Edward Hu — Reactor supported and hosts the work but did not itself author the model.