WAMs: A New Path for Robot Foundation Models
chris_j_paxton · x · 2026-07-15
This repost recommends a survey article on World-Action Models (WAMs). The core insight: WAMs have become the second mainstream route for robot foundation models, alongside traditional VLA.
The article breaks down the WAM system along three dimensions:
- Paradigms: Inverse dynamics, joint prediction, representation-only
- Action integration methods: Action tokens, treating actions as images, latent actions/plans
- Architecture styles: Monolithic Transformer, MoT (modality-specific experts + shared attention)
The reposter praises the article for clearly explaining core mechanisms, and for organizing SOTA models, a glossary, and extensive references, making it suitable for those wanting a quick introduction to WAM.
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