Generates fully navigable 3D worlds (not single objects) as Gaussian splats, viewable in VR
World API (Jan 2026) for programmatic world embedding in apps
Free tier: 4 world generations/month, no credit card
World Labs Marble — straight answers
What is World Labs Marble?
World Labs Marble is listed under 3D & CAD Generation, in the Content & Media Generation category on Flocci AI Tools. Generates fully navigable 3D worlds (not single objects) as Gaussian splats, viewable in VR. It is freemium — a usable free tier with paid plans above it, and it lives at marble.worldlabs.ai.
Is World Labs Marble free?
World Labs Marble is freemium: there is a free tier you can work in and paid plans above it. It is one of 426 freemium tools in the catalog, all labelled the same way so you are never surprised by a paywall.
Can I use World Labs Marble in a browser, or is there an app?
World Labs Marble works in a normal browser tab with no install. It is available on the web.
What can World Labs Marble do?
World Labs Marble does 3 things the catalog singles out: Generates fully navigable 3d worlds (not single objects) as gaussian splats, viewable in vr; world api (jan 2026) for programmatic world embedding in apps; free tier: 4 world generations/month, no credit card.
What is the best free alternative to World Labs Marble?
CADAM (Adam) is the closest free alternative: it sits in the same 3D & CAD Generation sub-category and is free. Copilot 3D, Hunyuan3D-2 (Tencent) and HunyuanWorld 1.0 also start free. The full list is on the alternatives page.