Marble World-Generation Audit: What We Actually Measured
World Labs' Marble turns a single photo into an explorable 3D world. Vendors make claims about commercial usability and dimensional accuracy — we ran the actual trial: two real generations, a byte-level provenance scan, and a real physical measurement. Here's what held up and what didn't.
The question this demo answers
“If a vendor tells you their AI-generated 3D reconstruction is commercially usable and dimensionally accurate, do you take that on faith — or do you check?”
Commercial rights & ToS
Checked against the actual terms, not a summary of them.
Run the audit to reveal.
Provenance scan
Byte-level scan of every exported file for C2PA/XMP/EXIF/glTF-extras/PLY-comment markers.
Run the audit to reveal.
Metric-scale accuracy
A real physical measurement, compared to the reconstruction — not a spec-sheet number.
Run the audit to reveal.
Every number on this page came from an actual run against World Labs' World API, not a mocked or illustrative scenario — 2 real generations (~$2.40), a byte-level provenance scan of every exported file, and a real two-point measurement against a physical reference. The test harness itself had 3 real integration bugs along the way (API response fields didn't match assumed names) — all caught and fixed by running it, not by reading documentation alone.
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