DEPLOYDatabase

Robot model

MARBLE

otherresearchby Duke General Robotics Lab

MARBLE (Duke General Robotics Lab; Weaver, Xia, Lo, Huang, Chen; arXiv 2609.27358) is a fully enclosed omnidirectional amphibious rolling robot.

Track MARBLE
Manufacturer
Duke General Robotics Lab
Form factor
other
Maturity
research
Lifecycle
active

The verified answer

As of Oct 2026, DEPLOY verifies MARBLE, a other by Duke General Robotics Lab (research). 4 sources back the record.

Overview

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.

Verified vs. claimed

Maturity stage
research(Lab-stage only; no commercial or public deployment reported.)
Sources on file
View all sources →

No verified deployments on file. DEPLOY tracks independently-sourced deployment evidence separately from manufacturer capability claims.

Key facts

Actuation (project-stated)

Project-stated (project-stated): three mutually orthogonal linear sliders each shift a 700 g mass over a 220 mm stroke inside a sealed spherical shell (~387 mm outer diameter) so the same internal mass actuation produces land rolling and water-surface propulsion via passive fins, with no external moving parts and no mechanical reconfiguration between media. Cap: paper-reported hardware

Locomotion results (project-stated)

Project-stated (project-stated): authors report terrestrial runs reaching mean ~0.75 m/s (max ~1.03 m/s), aquatic mean ~0.38 m/s, plus demonstrated land-water transitions and continued locomotion during direct shell contact with obstacles. Cap: author-reported lab results

Data & sources

Research

2

Web sources

2

4 sources backing this record.View all →

Pricing

No verified price is on record for MARBLE. Physical-AI systems are often sold through enterprise contracts or operated as a service rather than at a public list price.

How DEPLOY tracks pricing

Recent activity

Every change to this record is dated, sourced, and independently verified where marked.

Full change history →

Safety record

No incidents on record for MARBLE.

Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.

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

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.
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.
Is MARBLE safe?
MARBLE has no incidents on record in the DEPLOY registry. This does not constitute a safety guarantee; it reflects the incidents DEPLOY has tracked and verified to date.
Methodology: Unreviewed · 4 sources (no primary) · last reviewed 2026-09-30

Verification posture

Unreviewed

Low confidence

Review state

Stable

Last reviewed 2026-09-30

Maturity + lifecycle

Maturity stage: research

Lifecycle: active

Architectural position

Cohort: other

Sources by quality tier

2
preprint
Preprint
2
unclassified
Unclassified source

The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.

Methodology surface for MARBLE.