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World Labs

Founded in 2024 by Fei-Fei Li (creator of ImageNet) to build “world models” — AI that understands and generates 3D environments rather than just text.

Checked September 27, 2026

Lab siteAtlas announcement

No lab publishes a real roadmap

So this page keeps three things apart on purpose. What has already shipped is dated. What is coming is listed only where the lab itself has said it in public, with the source named. Everything else sits under “What to watch” and is my own read of their shipping pattern — informed guessing, not news. If a date matters to you, check the lab's own page linked above.

What they are

World Labs was founded in 2024 by Fei-Fei Li, who created the ImageNet dataset. It builds "world models": AI that creates and simulates 3D spaces instead of producing text.

The lab calls this goal "spatial intelligence" and names creative tools, high-fidelity simulation and robot planning as uses.

What they currently ship

Every model in the directory entry, with its free-tier status.

  • Marble— A generative world model that creates persistent, navigable 3D environments from text or images — free tier available with limits, paid plans for heavier use.Free with limits
  • Atlas (research preview)— A larger world model announced on the lab's blog, aimed at more coherent, physically consistent generated worlds.Free with limits

What you get for free

The honest version, in one paragraph.

Real but limited. You can sign up for Marble free and generate a few 3D worlds from text or images. Heavier use and exports need a paid plan.

Track record

Things that actually happened, oldest first, each with a date.

  1. September 2024World Labs comes out of stealth with Fei-Fei Li as co-founder.
  2. 12 November 2025Marble, the lab's multimodal world model, becomes available to everyone after a preview two months earlier.
  3. 2026Atlas is introduced as a next-generation "omni" world model, trained from scratch on text, images, video and 3D.

Confirmed and announced

Only what the lab has stated in public. Nothing here rests on a rumor.

  • Marble is open to the public, with an API and a free tier that has usage limits.

    Stated on the lab's own pricing or docs page

What to watch

My own read of where this lab is heading, based on how it has shipped so far. Not announcements — treat these as questions to check, not facts.

  • — When Atlas moves from research preview to the public Marble product.
  • — Use by robotics and simulation customers, which the lab names as a main goal.