Reactor logo

Reactor

Reactor is a full-stack infrastructure platform that enables developers to build and deploy real-time world model applications. It provides a unified SDK and API for frontier models like LingBot World 2, Helios, and SANA-Streaming, with globally distributed GPUs and sub-50ms streaming latency. Reactor handles the complexity of GPU infrastructure so developers can focus on creating interactive generative experiences for gaming, media, robotics, and simulation.

Visit Website

What is Reactor?

Reactor is a developer platform for building and deploying real-time world model applications. World models represent a fundamental shift in AI — from a tool you prompt into an experience you can step inside and interact with in real time. Reactor provides the infrastructure layer that makes this possible, offering a unified SDK and API that lets developers integrate leading world models with just a few lines of code. The platform supports models like LingBot World 2 for high-fidelity interactive environments, Helios for infinite streaming video generation, SANA-Streaming for real-time video editing, and LongLive 2 for multi-shot video generation. Reactor handles GPU deployment, scaling, and sub-50ms streaming latency across a globally distributed network, so developers can build interactive AI applications without managing infrastructure.

Reactor AI Developer Tools product interface screenshot

Reactor Core Features

Unified API

Access every leading real-time world model through a single SDK integration, with new models added constantly.

Sub-50ms streaming

Proprietary networking layer delivers frames in under 50ms, against a 400ms+ industry average.

Serverless GPUs

Deploy world model inference without managing GPU infrastructure, with automatic scaling.

Global distribution

Run workloads on a globally distributed GPU network with 99.99% uptime SLA.

TypeScript and Python SDK

Build applications in your preferred language with first-class SDK support.

Enterprise-grade isolation

Dedicated GPU isolation for production workloads requiring security and performance guarantees.

One-day production deployment

Go from integration to production in as little as one day with the Reactor platform.

10,000 concurrent sessions

Handle massive scale with support for up to 10,000 simultaneous streaming sessions.

Frontier model library

Choose from top production-ready world models including action-controlled and interactive video generation.

Who is Reactor for?

Game developers building real-time interactive worlds. AI researchers deploying world models in production. Film and television studios creating generative media. Robotics companies simulating environments for training and testing. Media and entertainment startups exploring interactive AI. Advertising agencies building generative ad creatives. Synthetic data generation teams powering computer vision pipelines.

Reactor Use Cases

Build interactive gaming environments where users explore AI-generated worlds in real time.

Create dynamic video content that responds to user input through real-time world model streaming.

Deploy robotic simulation environments for training and testing AI agents in physics-accurate worlds.

Generate interactive advertising experiences that adapt to viewer engagement in real time.

Power digital human and avatar applications with real-time video generation and streaming.

Produce multi-shot video narratives with seamless transitions and hard cuts for film production.

Run synthetic data pipelines for training computer vision and embodied AI models.

Develop next-generation media applications that blend generative AI with real-time interaction.

Reactor Pros and Cons

Pros

  • Industry-leading sub-50ms streaming latency enables truly real-time interactive experiences.
  • Access to multiple frontier world models through a single API simplifies integration.
  • Founded by ex-Apple Vision Pro and Luma AI technical leads with deep infrastructure expertise.

Cons

  • Pricing is not publicly listed — usage costs require contacting sales for detailed quotes.
  • Currently in public beta, so some features and documentation may still be evolving.
  • Requires familiarity with SDK/API development, not a no-code solution for non-technical users.

FAQ About Reactor

Reactor Pricing

Contact

Usage-based pricing billed by model type. Contact Reactor for detailed pricing. Startup program offers credits for prototyping and integration.

Check official pricing

Reactor Alternatives