Blog.

Fine-tuning changes how a model behaves; RAG changes what it knows. Which problem needs which method, what each one costs, and which survives a deletion request? A three-question decision tree.

Building AI infrastructure for your company means stacking four separate management decisions on top of each other: are you building a system that talks to your data, an autonomous agent that carries out tasks, a way to connect your existing systems together, or a decision about running models on...