Reactor Raises $59M Series A

Reactor, a San Francisco, CA-based software startup developing a platform for real-time generative AI video, has raised $59 million in a Series A funding round.

Investors

The funding round was led by Lightspeed Venture Partners, with participation from WndrCo, Amplify Partners, Sky9 Capital, and FPV Ventures.

Reactor Use of Funds

Reactor plans to use the capital to expand its operations internationally and within the United States to serve large customers. The company also intends to invest in expanding its GPU capacity for real-time processing and dedicate resources to marketing efforts.

About Reactor

Founded in 2025 by Alberto Taiuti and Bryce Schmidtchen, Reactor is a company specializes in real-time generative artificial intelligence and AI world models, The company provides a unified software development kit and application programming interface that enables developers to build real-time interactive AI applications at scale. The platform offers a critical software layer between AI model labs and developers, allowing for dynamic, user-interactive media that is generated instantaneously.

Funding Details

Company Website: https://reactor.inc

Company: Reactor Technologies, Inc.
Raised: $59M
Round: Series A
Funding Date: May 28, 2026
Lead Investor: Lightspeed Venture Partners
Additional Investors: WndrCo, Amplify Partners, Sky9 Capital, FPV Ventures
Company Website: https://www.reactor.inc/
Software Category: Generative AI
Source: https://variety.com/2026/digital/news/reactor-real-time-ai-video-funding-jeffrey-katzenberg-1236755883/