AI world models you can try
| Tool | Best for | Pricing | Free plan |
|---|---|---|---|
| Project Genie | Designers who want to sketch a level idea or mood as a short explorable world before building it in an engine | Only available with a Google AI Ultra plan (18+), from $99.99/month in the US (Ultra 5x; Ultra 20x is $199.99/month), as of October 2026 | No |
| Viggle JST-2 | Game developers who want fast 3D splat scenes, animation-ready characters and text or video mocap to prototype with | Free to try in PINOC (60 one-time credits). PINOC Starter is $12.99/month or $10.39/month billed annually, and Pro is $39.99/month or $31.99/month billed annually, as of October 2026. The API is pay as you go at $0.01 per credit | Yes |
Project GenieExplore short AI-generated interactive worlds
Viggle JST-2World model for 3D splat scenes, characters and motion
Compiled by AIGamer from each tool's own pages; we haven't tested every tool hands-on. Prices change, so check the tool's site before you buy.