Runway is a New York-based AI research and applied products company founded in 2018 by Cristóbal Valenzuela, Anastasis Germanidis, and Alejandro Matamala, focused on generative video and multimodal AI tools for filmmakers, designers, and creative professionals. The company's Gen series of video generation models, including its Gen-4 and Gen-4.5 releases, are used both by individual creators and by major media and entertainment companies exploring AI-assisted production workflows.
Runway raised $315 million in a funding round announced in February 2026 led by private equity firm General Atlantic, with participation from Nvidia, Fidelity, and other institutional investors, valuing the company at $5.3 billion. Co-CEO Cristóbal Valenzuela has been a prominent voice arguing that AI video tools represent an early step toward broader “world models” capable of simulating dynamic environments, not merely a video-editing feature.