Rayform vs World Labs
Generated worlds from an image or prompt, versus Rayform's reconstruction of what your sensors actually recorded.
What World Labs does.
World Labs' Marble generates 3D worlds from prompts and images, exported as Gaussian splats, collider meshes and panoramas. NVIDIA has published a workflow for bringing Marble worlds into Isaac Sim.
Where they are strong
- Unlimited variety: a new world on demand.
- A polished self-serve web app and public documentation.
- Exports splats and collision meshes for game engines and simulators.
How Rayform differs
- Marble imagines a plausible world. Rayform reconstructs the real one from your sensor data, with the raw frames kept to check against.
- Generated worlds have no recorded motion, contact or robot state. Rayform keeps all three.
Side by side.
| Capability | Rayform | World Labs |
|---|---|---|
| Works with your own recordingsUpload from your own robots, rigs or phones. | Yes | Partly |
| 3D reconstructionSplats, meshes and collision geometry built from your recordings. | Yes | No |
| Sensors and robot state alignedRGB, depth, LiDAR and joints on one clock and one coordinate frame. | Yes | No |
| Interactions on the timelineGrasps, placements and moved objects detected and marked. | Yes | No |
| Search across recordingsFind every grasp, scene or condition across all your data. | Yes | No |
| Versioned training slicesFrozen selections that always return the same data. | Yes | No |
| Export to training formatsLeRobot, RLDS or WebDataset for training; USD for simulators. | Yes | Partly |
| Self-serve accessStart without a sales call. | Partly | Yes |
Choose World Labs when
- You need many varied backgrounds quickly and accuracy is secondary.
Choose Rayform when
- You need ground truth from your own robots: real geometry, real motion, real contact.
Sources
Based on public information as of October 18, 2026. If anything here is wrong, write to contact@rayform.world and we will fix it. Names and trademarks belong to their owners.