# Reactor: physical AI company

Canonical ID: `b1f7e825-3071-468a-adcd-db42c990344a`

## Key facts

- **Series A extension (company-stated, Oct 2026):** [NVIDIA](/companies/nvidia.md) and Sapphire Ventures joined its [Lightspeed](/companies/lightspeed-venture-partners.md)-led Series A on Oct 5 2026. Amount undisclosed.
- **Total funding (reported, Oct 2026):** About $74M, per Fortune, which says [NVIDIA](/companies/nvidia.md) invested via [NVentures](/investors/nventures.md).
- **Product (company-stated):** Real-time inference infrastructure for world models and interactive video models.
- **Performance (company-claimed):** 60+ frames per second at under 40 ms latency.
- **Customer use (company-stated):** Running robot policies and world models in the cloud, and as closed-loop simulators for training and evaluation.
- **Leadership:** CEO Alberto Taiuti co-founded Luma AI and was its CTO; CTO Bryce Schmidtchen previously worked on Apple Vision Pro.
- **Hardware plans (reported, Oct 2026):** Plans to buy robot hardware, per Fortune.

- **Slug:** reactor-inc
- **Status:** private

## Models

_No models registered._

## Supplies to

_No verified supply relationships on file. Supply-chain coverage is being added across the registry; check back as the seed populates this company's outbound edges._

_Outbound supply edges. Each appears when verified with at least two strong sources. Sources are append-only; corrections add new sources rather than rewrite history._

## Common questions

### What is Reactor?

[San Francisco](/locations/san-francisco-ca.md) startup building real-time inference infrastructure for world models and interactive video models, used to run robot policies and closed-loop simulators.

### What does Reactor make?

Reactor has no robot models recorded on the DEPLOY registry.

### Is Reactor publicly traded?

No. Reactor is privately held and not publicly traded, per the DEPLOY registry.

### How can I invest in Reactor?

Reactor is a private company; its shares are not available on public markets, so retail investors cannot buy the stock today.

### Who owns Reactor?

Reactor is privately held; ownership sits with its founders and private investors.

### Is Reactor a top robotics company?

On DEPLOY's intelligence score, which blends verified deployments, funding, hiring, media, safety, and IP signals, Reactor ranks in roughly the top 7% of companies tracked by the registry.


## Sources (3)

1. https://markets.financialcontent.com/stocks/article/bizwire-2026-10-5-reactor-expands-investors-in-series-a-round-to-scale-real-time-world-model-infrastructure · 2026-10-05
2. https://fortune.com/2026/10/05/nvidia-backs-startup-reactor-buzz-grows-world-models/ · 2026-10-05
3. https://x.com/asteris_ai/status/2107586697001058550 · 2026-10-06

## The verified answers

- [Which companies have the most robots deployed](/which-companies-have-the-most-robots-deployed.md)
- [Which operators run the most robots](/which-operators-run-the-most-robots.md)
- [Which robot operators cover the most countries](/which-robot-operators-cover-the-most-countries.md)

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