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Companies

Reactor

SDK for streaming and steering real-time world models

Raised to date

$25.2M

of $48M offered across 1 Form D filing

Still open
$22.8M
Investors
8
Last filed
Jun 10, 2026

About

Reactor Technologies, Inc., which operates as Reactor, is a San Francisco developer platform for real-time generative video and world models. Its SDK and API let a developer connect to a world model, receive live generated video, and send commands that steer what the model generates while it is still running. The company was founded in 2025 by Alberto Taiuti (CEO) and Bryce Schmidtchen (CTO), both former technical leads on Apple Vision Pro, and emerged from stealth in May 2026 with $59M led by Lightspeed Venture Partners. AWS is its strategic partner and preferred cloud provider.

Sub-second, interactive streaming latency and several major world models behind a single API, so developers get steerable real-time video generation without provisioning or scaling GPU infrastructure themselves.

Funding

  • EquityFiled Jun 10, 2026Form D
    $25.2M/ $48M

Product

Reactor platform

AI developer infrastructure

A developer platform for real-time world models, delivered as a unified SDK and API. Developers connect to a model in a few lines of code, receive a live video stream, and issue commands to steer generation as it runs, with the GPU capacity and deployment handled by Reactor.

  • Unified SDK and API with JavaScript, React, and Python clients
  • Sub-second round-trip latency for interactive control of generation
  • Live video streaming that can be steered with commands mid-generation

Built for

Developers and technical teams at film and television studios, media and entertainment companies, and robotics or physical-AI companies

People on file