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- # World-Models
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-
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- <p align="center">
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- <strong>Build systems that do not only observe the world — but model how it changes.</strong>
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- </p>
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-
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- <p align="center">
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- <img src="https://img.shields.io/badge/Predictive-Worlds-2563EB?style=for-the-badge" alt="Predictive Worlds">
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- <img src="https://img.shields.io/badge/Simulation-7C3AED?style=for-the-badge" alt="Simulation">
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- <img src="https://img.shields.io/badge/Embodied-AI-14B8A6?style=for-the-badge" alt="Embodied AI">
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- <img src="https://img.shields.io/badge/Planning-F59E0B?style=for-the-badge" alt="Planning">
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- </p>
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-
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- ---
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-
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- ## A research home for learned worlds
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- **World-Models** is an independent Hugging Face organization for models, datasets, benchmarks, and experiments that explore one central idea:
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- > **Intelligence becomes more useful when it can represent the world, imagine alternatives, and predict consequences before acting.**
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- This organization is not about one architecture.
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- It is about a family of systems that attempt to learn:
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-
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- - what exists
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- - what changes
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- - what causes change
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- - what may happen next
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- - what an action is likely to produce
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-
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- ---
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-
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- # The question
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- Most AI systems answer:
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- > **What is this?**
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- World models aim to answer:
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- > **What happens next?**
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- And eventually:
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- > **What happens if I act?**
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- That shift changes the role of the model.
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- It becomes less like a static predictor and more like an internal simulator.
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- ---
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- # A minimal world model
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- ```text
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- observation
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- ↓
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- internal state
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- ↓
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- dynamics model
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- ↓
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- possible future
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- ```
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- An action-aware world model adds one more element:
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-
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- ```text
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- current state
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- +
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- possible action
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- ↓
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- predicted next state
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- ```
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- Repeated over time:
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- ```text
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- STATE₀
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- ↓ action
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- STATE₁
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- ↓ action
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- STATE₂
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- ↓ action
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- STATE₃
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- ```
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- That sequence can become the basis for planning.
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- ---
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- # Three things matter most
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- ## 1. Representation
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- The system needs a useful internal description of the environment.
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- That representation may contain:
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- - objects
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- - locations
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- - motion
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- - geometry
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- - agents
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- - memory
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- - uncertainty
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- - goals
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- - interactions
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- - physical constraints
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- A good representation should preserve what matters for prediction.
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- ---
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-
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- ## 2. Dynamics
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- A world is not a snapshot.
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- It changes.
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- A dynamics model tries to learn:
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- ```text
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- state + action + time → next state
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- ```
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- Possible domains include:
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- - video
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- - robotics
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- - games
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- - physical simulation
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- - traffic
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- - industrial systems
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- - spatial environments
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- - agent workflows
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- ---
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- ## 3. Imagination
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- Prediction becomes powerful when a model can compare multiple possible futures.
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- ```text
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- ┌─ action A → future A
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- current state├─ action B → future B
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- └─ action C → future C
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- ```
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- Planning can then ask:
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- > Which future best satisfies the objective?
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- ---
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- # Research Paths
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- World-Models may explore several distinct research paths.
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- ### Latent world models
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- Compress observations into a learned internal state.
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- Possible topics:
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- - latent dynamics
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- - compact state spaces
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- - representation learning
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- - predictive embeddings
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- - recurrent state models
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- ---
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- ### Video world models
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- Use temporal visual data to learn how scenes evolve.
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- Possible tasks:
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- - future-frame prediction
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- - video continuation
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- - action-conditioned video
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- - motion forecasting
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- - object persistence
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- - scene consistency
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- ---
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- ### Spatial world models
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- Build representations of space and geometry.
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- Possible topics:
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- - 3D scenes
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- - depth
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- - object relations
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- - navigation
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- - spatial memory
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- - scene reconstruction
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- - viewpoint changes
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- ---
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- ### Embodied world models
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- Connect perception to action.
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- Possible environments:
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- - robots
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- - vehicles
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- - drones
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- - simulated agents
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- - interactive environments
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- The core loop:
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- ```text
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- perceive
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- ↓
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- model
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- ↓
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- predict
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- ↓
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- plan
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- ↓
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- act
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- ↓
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- perceive again
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- ```
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- ---
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- ### Agent world models
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- An agent may also need a model of a digital environment.
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- For example:
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- - available tools
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- - system state
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- - task progress
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- - permissions
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- - external services
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- - likely tool outcomes
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- This creates a digital world model:
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- ```text
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- task state
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- ↓
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- possible action
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- ↓
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- predicted system response
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- ```
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- ---
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- # What We Want to Measure
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- World models need evaluation beyond visual realism.
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- A convincing future is not necessarily a correct future.
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- Useful evaluation dimensions may include:
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- | Dimension | Question |
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- |---|---|
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- | **State accuracy** | Is the internal world state meaningful? |
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- | **Future prediction** | Is the next state plausible and correct? |
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- | **Temporal consistency** | Does the world remain coherent over time? |
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- | **Action sensitivity** | Do different actions produce different futures? |
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- | **Spatial consistency** | Are geometry and positions preserved? |
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- | **Object persistence** | Do entities remain stable across time? |
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- | **Long-horizon stability** | Does quality degrade over many steps? |
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- | **Planning utility** | Does the model help choose better actions? |
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- | **Uncertainty** | Does the model represent multiple plausible futures? |
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- ---
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- # The Prediction Horizon Problem
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- Short predictions are easier.
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- Long predictions accumulate error.
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- ```text
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- t+1 ✓
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- t+2 ✓
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- t+3 ~
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- t+4 ?
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- t+5 ??
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- ```
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- One of the most interesting world-model problems is therefore:
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- > **How long can a model remain coherent when predicting into the future?**
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- This matters for:
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- - robotics
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- - long-horizon agents
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- - simulation
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- - autonomous systems
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- - planning
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- ---
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- # Reality vs. Plausibility
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- A world model can fail in two different ways.
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- ### Unrealistic prediction
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- The generated future is obviously impossible.
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- ### Plausible but wrong prediction
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- The future looks convincing, but does not match the true dynamics.
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- The second failure is more dangerous because it can be harder to detect.
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- World-model evaluation should therefore separate:
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- **realism** from **predictive correctness**.
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- ---
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- # Possible Spaces
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- World-Models can host practical research tools such as:
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- ### Future State Explorer
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- Enter a state and candidate actions, then compare possible next states.
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- ### World Model Capability Map
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- Document which environments, modalities, horizons, and actions a model supports.
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- ### Trajectory Comparator
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- Compare predicted and real object or agent trajectories.
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- ### Long-Horizon Stability Lab
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- Measure how prediction quality changes as rollout length increases.
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- ### Spatial Consistency Check
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- Evaluate geometry, relative position, and object persistence.
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- ### Action-Conditioned Simulator
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- Explore how different actions affect predicted futures.
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- ### World Model Eval Builder
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- Create structured evaluation scenarios.
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- ### Counterfactual Playground
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- Compare “what happened” with “what might have happened.”
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- ### Robot Rollout Viewer
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- Inspect predicted action sequences before execution.
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- ### Latent State Explorer
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- Visualize compact internal world representations.
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- ---
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- # Possible Datasets
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- Potential datasets may include:
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- ```text
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- state-transition-pairs
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- action-conditioned-trajectories
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- robot-rollouts
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- spatial-scene-transitions
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- synthetic-physical-worlds
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- video-future-sequences
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- counterfactual-transitions
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- agent-environment-traces
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- ```
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- A useful world-model dataset might include:
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- ```json
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- {
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- "observation": "...",
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- "state": "...",
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- "action": "...",
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- "next_state": "...",
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- "timestamp": "...",
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- "reward": "...",
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- "uncertainty": "..."
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- }
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- ```
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- ---
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- # Possible Models
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- Projects may include models for:
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- - next-state prediction
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- - video dynamics
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- - action-conditioned generation
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- - trajectory prediction
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- - latent dynamics
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- - scene reconstruction
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- - spatial reasoning
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- - robot planning
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- - environment simulation
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- - predictive control
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- ---
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- # World Models Are Not Just Video Generators
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- Video generation can be part of a world model.
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- But visual realism alone is not enough.
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- A useful world model may need to preserve:
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- - causality
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- - geometry
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- - identity
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- - temporal state
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- - physical constraints
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- - action consequences
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- - uncertainty
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- The goal is not simply:
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- > generate the next frame
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- The stronger goal is:
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- > **model what the world is doing**
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- ---
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- # World Models + Omnimodal Intelligence
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- A world model may receive information from many modalities:
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- ```text
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- vision
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- audio
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- language
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- 3D
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- sensors
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- tools
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- actions
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- ```
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- These observations can update a shared internal state.
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- That makes world models a natural bridge between:
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- **omnimodal perception** and **intelligent action**.
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- ---
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- # World Models + Spatial Intelligence
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- Spatial intelligence helps represent:
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- - where objects are
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- - how they relate
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- - how they move
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- - what is reachable
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- - what is occluded
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- - what changes under action
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- World models add the time dimension:
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- > not only **where things are**, but **where they may be next**.
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- ---
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- # World Models + Agents
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- A capable agent may need to simulate consequences before acting.
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- ```text
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- goal
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- ↓
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- possible plan
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- ↓
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- world model
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- ↓
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- predicted outcome
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- ↓
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- compare alternatives
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- ↓
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- choose action
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- ```
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- That may become especially important for:
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- - long-horizon tasks
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- - autonomous agents
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- - robotics
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- - tool use
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- - planning under uncertainty
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- ---
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- # Principles
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- ### Predict consequences
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- A world model should connect action and outcome.
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- ### Preserve state
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- Important entities should remain coherent over time.
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- ### Model uncertainty
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- The future is rarely singular.
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- ### Evaluate rollouts
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- One-step accuracy is not enough.
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- ### Separate realism from correctness
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- A plausible prediction can still be wrong.
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- ### Connect perception to planning
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- Prediction becomes more useful when it improves decisions.
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- ### Prefer measurable environments
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- World-model claims should be tested against observable outcomes where possible.
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- ---
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- # Who Is This For?
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- World-Models may be useful for:
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- - world-model researchers
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- - robotics teams
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- - embodied-AI developers
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- - reinforcement-learning researchers
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- - video-model teams
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- - agent developers
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- - spatial-intelligence researchers
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- - simulation engineers
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- - autonomous-systems teams
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- - open-source contributors
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- ---
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- # The Long View
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- Language models taught machines to model language.
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- World models aim at something broader:
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- > **model environments, dynamics, actions, and possible futures.**
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- If future AI systems are expected to operate in the world rather than only describe it, they may need internal predictive models that answer:
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- ```text
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- Where am I?
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- What is happening?
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- What could happen next?
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- What if I act?
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- Which action should I choose?
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- ```
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- That is the territory of World-Models.
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- ---
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- # Research, not certainty
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- Projects published here are intended primarily for:
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- - research
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- - development
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- - evaluation
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- - simulation
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- - education
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- - prototyping
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- Predicted futures are not guaranteed futures.
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- World-model outputs should not be treated as reliable control instructions in safety-critical environments without extensive validation.
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- ---
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- # Independent Organization
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- **World-Models is an independent Hugging Face community organization.**
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- It is not an official model provider, research institute, robotics company, standards organization, or Hugging Face organization.
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- The organization exists to explore a simple but ambitious idea:
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- > **AI systems that can represent a world, predict its evolution, and reason about possible futures.**
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- ---
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- <p align="center">
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- # WORLD-MODELS
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- ### **Represent the world. Imagine futures. Plan before acting.**
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- </p>