---
title: "Discussion on \"Stop Picking Sides: VLAs, JEPA, World Foundational Models, and WAMs Are All Solving Different Problems\" | Hashnode"
description: "Discussion on \"Stop Picking Sides: VLAs, JEPA, World Foundational Models, and WAMs Are All Solving Different Problems\". A no-nonsense map of Physical AI's architecture stack — what each paradigm does, where it breaks, and which one you actually need"
url: "https://hashnode.com/posts/vla-jepa-world-models-wam-physical-ai-stack-2026/6a017fcca63f995f5f8e4949"
---

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# [Stop Picking Sides: VLAs, JEPA, World Foundational Models, and WAMs Are All Solving Different Problems](https://indrareddy.hashnode.dev/vla-jepa-world-models-wam-physical-ai-stack-2026?utm_source=hashnode&utm_medium=feed)

A no-nonsense map of Physical AI's architecture stack — what each paradigm does, where it breaks, and which one you actually need

May 11 · 19 min read · indrareddy.hashnode.dev  
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## Written by

[IndraKumar Reddy Guvva](https://hashnode.com/@Indrareddy)

@Indrareddy

  
[View profile](https://hashnode.com/@Indrareddy)

Software Engineer with expertise in ROS and AI

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