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Paula Livingstone writing · projects · tools

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Model Internals

A hands-on, evidence-first investigation into what actually happens inside a running language model, opening one up on local hardware and testing directly why it does what it does.

PythonPyTorchHugging Face TransformersQwen3-4BApple M4 ProMetal

How AI Agents Decide and Act

1 entry
  1. Inside the Moment an AI Decides A hand-built AI agent obeyed one instruction with total certainty. Opening up the 4-billion-parameter model to find out why turned into a lesson in the difference between looking like a cause and being one.