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A world model that uses diffusion processes to predict future observations. DIAMOND showed that diffusion-based world models can achieve state-of-the-art Atari 100K results, while Cosmos applies diffusion at foundation scale for physical AI.
Diffusion World Model is a glossary concept in the architecture layer of the world models knowledge base.
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| Attribute | Value |
|---|---|
| Term | Diffusion World Model |
| Category | Architecture |
| Definition | A world model that uses diffusion processes to predict future observations. DIAMOND showed that diffusion-based world models can achieve state-of-the-art Atari 100K results, while Cosmos applies diffusion at foundation scale for physical AI. |
| Related Models | 2 |
| Related Research | 2 |
| Model | Lab | Category |
|---|---|---|
| DIAMOND | Microsoft Research / University of Geneva | Model-Based RL |
| NVIDIA Cosmos | NVIDIA | Foundation World Model |
| Topic | Summary |
|---|---|
| Model-Based Reinforcement Learning | What model-based reinforcement learning is, how world models enable imagination-based planning, and why Dreamer, MuZero, PlaNet, and TD-MPC2 matter. |
| Foundation World Models | How foundation world models such as Cosmos and Genie 2 bring large-scale learned simulation to robotics, autonomous driving, and physical AI. |
| Term | Category | Definition |
|---|---|---|
| Diffusion Model | Architecture | A generative model that learns to produce data by reversing a gradual noising process. In world models, diffusion-based architectures (used in NVIDIA Cosmos and UniSim) generate high-fidelity video frames representing possible future states of the environment. |
| Action Conditioning | Architecture | A property of a world model whose predictions of future states depend explicitly on the action taken by the agent. Action-conditioned models support interactive simulation and planning, distinguishing true world models from passive video generators. |
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Published by world-models.io editorial board.
Lead editor Bernard Grenat.
This glossary page publishes stable definitions linked to related models, research topics, and primary-source context.
Each editorial page is assembled from primary sources, normalized into extractable summaries, checked for factual drift, and reviewed before publication or major refreshes. Last reviewed: 2026-06-21.
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