SHORTList
Reactor logo
AI/ML
DevTools/Cloud

Reactor

We're a team of industry veterans building the missing layer for world models. We've co-founded Luma AI, shipped the Apple Vision Pro, and scaled real-time video and inference infrastructure at Meta, Replicate, Microsoft, and Adobe. We're backed by Tier 1 investors and angels across AI, gaming, infrastructure, and robotics.

Dnipro· 1 role

CORE INFO

$59M
Total Funding
Series A
Round
2025
Founded
San Francisco, California, USA
Headquarters

Reactor is a San Francisco-based company that provides a developer platform for real-time generative AI video and interactive applications, catering to developers in media, entertainment, and robotics industries.

  • Reactor secured $59 million in Series A funding, led by Lightspeed Venture Partners, with participation from WndrCo, Amplify Partners, Sky9 Capital, and FPV Ventures.thesaasnews.com
  • The platform offers sub-50ms streaming capabilities, significantly faster than the industry average of over 400ms, enhancing real-time video generation.citybiz.co
  • Variety reported on Reactor's $59 million funding round, highlighting its focus on real-time generative AI video.variety.com

WHY WE WOULD WORK AT REACTOR

Innovative Technology

Join a pioneering team at the forefront of real-time generative AI video, utilizing cutting-edge technologies like serverless GPUs and sub-50ms streaming capabilities.

Collaborative Culture

Work alongside industry veterans, including founders from Apple's Apple Vision Pro project, fostering a culture of innovation and collaboration.

Competitive Compensation

Benefit from a strong financial backing of $59 million in Series A funding, ensuring competitive salaries and resources for employee growth.

Empower Developers

Contribute to a platform that empowers developers with tools like the World Model SDK, enabling rapid deployment of interactive AI applications.

Impactful Mission

Be part of a company aiming to revolutionize media and entertainment through real-time AI, making a significant impact in the industry.

Growth Opportunities

Experience rapid career growth in a fast-evolving field, with opportunities to shape the future of interactive AI applications.

MARKET AND TRACTION

TOTAL ADDRESSABLE MARKET

  • Reactor is positioned in the emerging field of real-time generative AI, which is rapidly growing due to increasing demand for interactive media applications.

  • The company serves industries such as media and entertainment, physical AI, and robotics, indicating a broad market potential across various sectors.

    • KEY METRICS

    ✦ KEY METRIC
  • Reactor has raised a total of $59 million in Series A funding, demonstrating strong investor confidence in its business model and technology.

  • The platform boasts sub-50ms streaming capabilities, significantly outperforming the industry average of over 400ms, which enhances user experience in real-time applications.

    • GROWTH TACTICS

  • Reactor aims to empower developers by providing a full-stack infrastructure that includes serverless GPUs and dedicated clusters, facilitating rapid deployment from development to production.

  • The company offers a World Model SDK that allows developers to build and stream real-time world models, promoting innovation and scalability in AI applications.

    • COMPETITIVE ADVANTAGE

  • Reactor's proprietary networking layer enables near-zero latency in video streaming, setting it apart from competitors in the real-time generative AI space.

  • The platform's integration of a globally distributed GPU network allows for efficient resource utilization and faster deployment of AI models.

    • MARKET POSITION

  • Founded in 2025, Reactor has quickly established itself as a pivotal infrastructure provider in the real-time generative AI sector.

  • The company has garnered attention from notable investors, including Lightspeed Venture Partners, positioning it for future growth and market leadership.

    • PRODUCT AND TECH

    Real-Time Video Platform

    Reactor's real-time generative AI video platform enables developers to create and stream high-quality video content with sub-50ms latency, revolutionizing the way interactive media is produced and consumed.

    World Model SDK

    The World Model SDK allows developers to build and deploy real-time world models using a globally distributed GPU network, facilitating rapid development and integration of interactive AI applications.

    Serverless GPU Infrastructure

    Reactor provides a full-stack infrastructure with serverless GPUs and dedicated clusters, ensuring scalable and efficient processing power for real-time video and AI applications.

    Interactive AI Models

    The platform supports various advanced models such as LingBot for high-fidelity environments and Helios for interactive video generation, empowering developers to create immersive experiences.

    Sub-50ms Streaming Technology

    Reactor's proprietary networking layer delivers video frames in under 50ms, significantly enhancing the user experience in real-time applications compared to the industry standard.

    COMPANY CULTURE

    Values

  • Innovation is at the core of our mission

  • Commitment to empowering developers

  • Emphasis on speed and scalability in AI applications

  • Collaboration and teamwork drive our success

  • Integrity and transparency in all operations

    • Operating Principles

  • Focus on real-time solutions for generative AI

  • Utilize cutting-edge technology for optimal performance

  • Foster a culture of continuous improvement

  • Encourage experimentation and risk-taking

  • Prioritize user experience in product development

    • Benefits

  • Access to a globally distributed GPU network

  • Opportunities for professional growth and development

  • Flexible work arrangements to support work-life balance

  • Competitive compensation and equity options

  • Collaborative environment with industry experts

    • Learning & Growth

  • Regular training sessions on emerging technologies

  • Mentorship programs for skill development

  • Encouragement of attending industry conferences

  • Access to resources for personal and professional growth

  • Support for innovative projects and ideas

    • Team Cadence

  • Agile methodologies to enhance productivity

  • Regular team meetings to align on goals

  • Open communication channels for feedback

  • Emphasis on cross-functional collaboration

  • Celebrating milestones and achievements together

    • HIRING SIGNAL

    1
    Open roles on their careers page
    Snapshot via live ATS poll
    —
    Net new roles in the last 90 days
    Available once weekly history accrues
    90-Day VelocityV2 · BACKFILL
    Trend builds weekly as historical rows accrue
    By Function
    Breakdown of open roles
    Engineering · 1
    Top Locations
    Where hiring is concentrated
    Remote-eligible postings counted separately
    Dnipro, ua
    1
    SourcesGreenhouseLeverAshbyWorkableSmartRecruitersRipplingRecruiteeFallback · Wellfound, YC Work-at-a-Startup, careers-page scrape

    KEY COMPANY ANNOUNCEMENTS

    Filter
    11 announcements · ranked by importance
    Jun 10, 2026FUNDINGForm D filing — Reactor Technologies, Inc. (CIK 0002104457)sec.gov
    May 28, 2026FUNDINGReactor Raises $59M Series Athesaasnews.com
    May 28, 2026FUNDINGReactor Emerges from Stealth with $59M to Build the Platform for Real-Time AI Worlds - US Press Centerpress.aboutamazon.com
    Jul 14, 2026INTERVIEWReactor's founding insight: video models were already doing 3D better than the 3D pipeline.youtube.com
    Jul 10, 2026INTERVIEWActive Voice, Episode 11, "Birth of a New Reactor" Part 1youtube.com
    Jun 18, 2026INTERVIEWWhy Real-Time Video May Be AI's Next Big Opportunity | Alberto Taiuti and Bryce Schmidtchen, Reactoryoutube.com
    “Reactor co-founders Alberto Taiuti and Bryce Schmidtchen join Lightspeed partners”youtube.com · Jun 18, 2026
    Nov 1, 2025FUNDINGReactor | Valuation, Funding Rounds & Stock Price | Caplightcaplight.com
    Jan 1, 2025FOUNDER PROFILEReactor | F4 Startup Intelligencef4.fund
    Jul 8, 2026PRESSLingBot-World 2reactor.inc
    May 7, 2026PRESSShow HN: Real-time world model demoreactor.inc
    Apr 16, 2026PRESSReactor: Building the missing layer for world modelsyoutube.com