Introduction

World Labs just took Atlas out of preview. Anyone can now sign up and build 3D worlds with it. The Atlas launch page went up on November 12 alongside an

. It's a closed, hosted world model from Fei-Fei Li's lab, and you can use it today in two web apps, Viewfinder and Chisel, or through a developer API. World Labs says the API exposes "all of the API endpoints powering these apps," so the same calls the apps make are open to developers and agents.

We covered the Atlas research reveal in September and the Frameboy real-time preview last week. Back then Viewfinder was still a closed beta. Now it's open.

What shipped

  • Model: Atlas, World Labs' next-generation world model
  • Vendor: World Labs
  • Modality: image-to-3D world. Photos or generated images go in. Explorable scenes come out, along with camera-path renders, video clips and 3D Gaussian splats
  • Open vs API: closed and hosted. No weights. Access is through the web apps and developer API endpoints
  • Where to run it today: sign up at atlas.worldlabs.ai and open Viewfinder or Chisel, or call the API from your own tools. World Labs lists Blender among the integrations
  • Concrete fact: Viewfinder builds a whole world from a single image, or reconstructs a real place from

The four tools

World Labs launched Atlas with four tools:

  • Viewfinder reconstructs a scene from your photos or generated images. You can then move the camera through it, find new viewpoints and render camera paths. It exports images, videos or 3D Gaussian splats that stay spatially consistent.
  • Chisel is for building scenes you can control, including grayboxing. You block out the layout, move things around, and every camera view updates to match. The X thread says it's "built around agentic workflows for creating explicit 3D geometry," and it takes a text prompt or reference images.
  • Splats to Mesh turns splats into meshes with real geometry. World Labs pitches it directly at "games and interactive environments."
  • Relight lets you change the lighting on splats.

Why it matters for game devs

This is the first time Atlas plugs into a normal asset pipeline. Before, you could look at an Atlas world. Now you can graybox a level in Chisel, let Atlas fill it in, convert the splats to a mesh and bring it into your engine or Blender. That's a quick way to make blockout-to-environment concepts, previs for cutscenes, or a starting point for set dressing.

The API matters too. If your team already runs agents or pipeline scripts, you can call Atlas from those instead of exporting from a browser tab by hand.

The catch

Atlas is hosted only, so you're relying on World Labs' servers and terms. The launch page doesn't give per-call pricing, mesh quality numbers or polycounts, so test Splats to Mesh on a real level before you count on it for shipping geometry. Splats are great for previs and backgrounds, but you'll probably still need retopology, collision and LODs before anything turns into a playable space.

—Titus