# MARBLE: Duke General Robotics Lab robot

Canonical ID: `090144b9-95b0-4c62-8766-4edb420d6def`

- **Slug:** duke-marble
- **Form factor:** other
- **Maturity stage:** research
- **Lifecycle:** active
- **Deployments registered:** 0

## Deployments

_No deployments registered for this model._

## Supply chain

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

_Suppliers appear when verified with at least two strong sources. Sources are append-only; corrections add new sources rather than rewrite history._

## Common questions

### What is MARBLE?

MARBLE (Duke General Robotics Lab; Weaver, Xia, Lo, Huang, Chen; arXiv 2609.27358) is a fully enclosed omnidirectional amphibious rolling robot. Three orthogonal internal mass sliders shift 700 g masses over 220 mm strokes inside a sealed ~387 mm spherical shell with passive fins, producing land rolling and water-surface propulsion without external moving parts or mechanical reconfiguration. Research platform with planned open-source hardware/software; not a commercial product. Distinct from World Labs' Marble world-model brain and unrelated Marble delivery robots.

### How much does MARBLE cost?

MARBLE's price is not publicly disclosed. DEPLOY has no verified price on record for MARBLE from Duke General Robotics Lab. Physical-AI systems like this are often sold through enterprise contracts or operated as a service rather than at a public list price; check the manufacturer for the latest.

### Is MARBLE actually deployed in the real world?

MARBLE is at the research stage: it exists, but DEPLOY has no verified real-world deployment on record. Manufacturer capability claims should be read as claims pending independent verification.

### Who makes MARBLE?

MARBLE is made by Duke General Robotics Lab, based in Durham, North Carolina, USA.

### Can you buy MARBLE?

MARBLE is at research stage and is not yet available for sale.

### What are alternatives to MARBLE?

On the DEPLOY registry, comparable other robots to MARBLE include ASML EUV TwinScan, BrainOS, 10Beauty Manicure System, CleanSpark Bitcoin Mining Fleet.

### How does MARBLE compare to ASML EUV TwinScan?

MARBLE and ASML EUV TwinScan (ASML Holding · 7 deployments) are both other robots on the DEPLOY registry. MARBLE has 0 verified deployments on record. Compare both records for specs, safety, deployments, and verified-vs-claimed autonomy.

### Is MARBLE a top other?

On DEPLOY's intelligence score, which blends verified deployments, safety, adoption, media, and IP signals, MARBLE ranks in roughly the top 41% of other models tracked by the registry.

### What is MARBLE's maturity stage?

MARBLE is at the research stage on the DEPLOY maturity ladder (research, prototype, pilot, commercial, production). Research stage means active development without commercial deployments on file.

### Where is MARBLE deployed?

No verified deployments of MARBLE are currently on the DEPLOY registry. DEPLOY records deployments only when verified at a named site with a primary source; absence may reflect pre-deployment, research, or manufacturer-internal use.


## Sources (4)

1. https://arxiv.org/abs/2609.27358 · 2026-09-30
2. https://arxiv.org/html/2609.27358 · 2026-09-30
3. https://generalroboticslab.com/MARBLE · 2026-09-30
4. https://x.com/lukas_m_ziegler/status/2105264331445186892 · 2026-09-30

## The verified answers

- [Which robots are deployed in the most cities](/which-robots-are-deployed-in-the-most-cities.md)
- [Which types of robots are deployed the most](/which-types-of-robots-are-deployed-the-most.md)

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