Reactor

San Francisco, United States

series-a$133M raisedAI InfrastructureGenerative AIEnterprise Software

◆ Total Raised

$133M

◆ Stage

series-a

◆ Location

San Francisco, United States

◆ Links

Website ↗

◆ About Reactor

Real-time AI video generation platform founded by ex-Apple engineers that produces generative AI video dynamically rather than through batch processing.

◆ What sets it apart

It generates video in real time for interactive use cases instead of relying on slower batch generation workflows.

◆ Sectors

AI InfrastructureGenerative AIEnterprise SoftwareStreaming & Media

◆ Business

ModelSaaS

CustomerDevelopers, product teams, and companies building real-time AI video products

◆ Notable

Founded by ex-Apple engineers
Positioned as a real-time AI video generation platform

◆ Backing funds on Raise

Lightspeed India Partners Vseries-a
Lightspeedseries-a

◆ Funding rounds

series-a$74M

5 Oct 2026

Led by Lightspeed Venture Partners

With Nvidia, Sapphire Ventures

Source ↗

series-a$59M

28 May 2026

Led by Lightspeed Venture Partners

With WndrCo, Amplify Partners, Sky9 Capital, FPV Ventures

Source ↗

◆ Explore the market

AI Infrastructure Generative AI Enterprise Software Streaming & Media Series A United States

◆ FAQ

What does Reactor do?

Real-time AI video generation platform founded by ex-Apple engineers that produces generative AI video dynamically rather than through batch processing.

Where is Reactor based?

Reactor is based in San Francisco, United States.

How much has Reactor raised?

Reactor has raised $133M in tracked funding and is currently at the series-a stage.

Who has invested in Reactor?

Investors in Reactor include Lightspeed India Partners V and Lightspeed.