one dataset · paper, tables, graph, wiki
simgrammar the grammar of simulation

mechanism

Genie (2024) learned from 30k hours of unlabeled 2D platformer video: a video tokenizer, a latent action model that infers 8 discrete actions between frames without labels, and a 10.1B-parameter dynamics model that predicts the next frame tokens given an action. Genie 2 (December 2024) is an autoregressive latent diffusion model with a transformer dynamics model that turns a single image into a 3D world controlled by keyboard and mouse. Genie 3 (August 2025) generates frames auto-regressively in real time from a text prompt, keeps visual memory of earlier frames for about a minute so revisited places look the same, and accepts text 'promptable world events' during play that add objects, characters, or weather changes. No explicit 3D scene or game state is stored; consistency comes from the frame history.

limitations

  • Session length: Genie 2 coherence is usually 10 to 20 seconds; Genie 3 manages a few minutes; Project Genie caps exploration at 60 seconds because of compute.
  • No inspectable state: there are no variables for inventory, health, or object identity, so mechanics that need stocks or rules must live in a separate system.
  • Limited action space and no reliable multi-agent interaction (DeepMind's stated Genie 3 limitations).
  • Access is a hosted research prototype for paying subscribers; no public API, price per hour, or on-device version is published.
  • Guardrails refuse copyrighted settings and nudity, which constrains user-generated worlds.

relations

7 stored edges
affects

Direct avatar control

First- or third-person character movement is rendered by the model from WASD, camera, and jump input; the action space is small and collisions are not guaranteed (characters passing through walls).

Replaces substrate
affects

Generative content on demand

Whole explorable scenes, characters, and events are generated at runtime from player text, sketches, or photos, which extends generative content from text and items to playable space.

Enables new form
affects

God powers

Promptable world events work as a free-form god power: typed text adds characters, objects, or weather to the running world; Genie 3 attaches no cost or rule to them and their effects exist only in rendered frames.

Enables new form
affects

Procedural terrain

Worlds come from a text or image prompt instead of a seed and noise pipeline, in any visual style; persistence is minutes long (about one minute of visual memory in Genie 3, 60-second sessions in Project Genie).

Enables new form
affects

Rigid-body physics

Object responses such as doors opening, balloons bursting, water, and smoke are produced by learned video dynamics (Genie 2) rather than a physics engine, with no conservation or collision guarantees.

Replaces substrate
affects

Storyteller director

A director could inject an event (a new character, object, or condition) as a text prompt that Genie 3 renders into the running world, removing per-event art and animation; event selection and pacing still need a separate system with real state.

Cuts authoring cost
affects

Weather

Genie 3's promptable world events change weather by text during a session with no weather simulation or authored weather assets; the change is visual only and has no stored state for crops, agents, or travel to read.

Enables new form

backlinks

computed from other records

claims

6 with sources
c01high

Genie has 11B parameters trained on 30k hours of 2D platformer clips with 8 latent actions; it generates about 1 frame per second and has 16 frames of memory, which the paper lists as limitations.

src-bruce-2024-genie

c02high

Genie 2 turns one image into a playable 3D world with water, smoke, gravity, lighting, door opening, and NPCs; worlds stay coherent for up to a minute, but most examples last 10 to 20 seconds.

src-deepmind-2024-genie-2

c03high

Genie 3 renders 720p at 24 fps in real time, stays consistent for a few minutes with visual memory reaching back about one minute, and supports text prompts that change weather or add objects and characters mid-session; DeepMind lists limited action space and multi-agent interaction as open problems.

src-deepmind-2025-genie-3

c04high

Project Genie opened Genie 3 to US Google AI Ultra subscribers on 2026-01-29 with a 60-second limit per world set by compute cost; a reviewer saw characters walk through walls and sometimes unresponsive controls, and copyrighted settings were refused.

src-techcrunch-2026-project-genie, src-wikipedia-project-genie

c05medium

Shares of video game companies, including Unity, fell after the Project Genie launch.

src-wikipedia-project-genie

c06medium

Waymo built a world model on Genie 3 (February 2026) to simulate driving edge cases, controllable by driving action, scene layout, and language.

src-wikipedia-genie-ai-model

sources

6
Jake Bruce, and others (Google DeepMind) (2024-02). Genie: Generative Interactive Environments. ICML 2024
Google DeepMind (2024-12-04). Genie 2: A large-scale foundation world model.
Google DeepMind (2025-08-05). Genie 3: A new frontier for world models.
Wikipedia contributors (2026). Project Genie (website). Wikipedia
Wikipedia contributors (2026). Genie (AI model). Wikipedia

provenance

runs in log/runs
2026-10-24
created2026-10-24-techniques-world-modelstechnique
2026-10-24
reviewed2026-10-24-review-fixesmaintenance