Reactor

Reactor: Developer Infrastructure for Real-Time World Models

Reactor is full-stack developer infrastructure for real-time video and world models. It gives developers a single SDK and API to stream generative video and interactive world models with sub-50ms latency, backed by a globally distributed serverless GPU network — so building a real-time, model-driven experience does not require running your own low-latency GPU stack. A library of frontier models is available behind one interface.

Real-time world models are an emerging frontier; Reactor focuses on the hard latency and infrastructure problems that make them usable in production.

Key Features

• Real-time world-model streaming via SDK
• Sub-50ms latency
• Globally distributed serverless GPU network
• Multiple frontier models behind one API
• Single interface across the model library
• Enterprise uptime SLA

Ideal Use Case

Reactor fits developers and teams building interactive, real-time generative-video and world-model experiences who do not want to operate a global low-latency GPU network themselves. It suits products where latency and reliability are the barrier to shipping.

How Reactor differentiates

Reactor specializes in the real-time, low-latency infrastructure for world models, with a serverless GPU network and a unified model API. It raised $59M in seed and Series A funding led by Lightspeed, with NVIDIA's NVentures and others, founded by former Apple Vision Pro and Luma AI leaders.

FAQ

What is Reactor? Developer infrastructure for real-time video and world models with serverless GPUs and sub-50ms streaming.

Who is it for? Developers building interactive, real-time generative-video and world-model products.

How do I access models? Through a single SDK and API across a library of frontier models.

Who backs Reactor? $59M led by Lightspeed, with NVIDIA's NVentures; founded by ex-Apple Vision Pro and Luma AI leaders.

tl;dr

Reactor is developer infrastructure for real-time video and world models, with serverless GPUs and sub-50ms streaming via one API, backed by $59M led by Lightspeed and NVIDIA's NVentures.