AI ArchitectureFeatured
The AI Stack, Layer by Layer
A reference map of the modern AI stack, from data sources through the knowledge layer to models, orchestration, and interfaces.
AI Architecture
An AI product is rarely one model. It is a stack: data sources, a knowledge layer, models, orchestration logic, and the interfaces people and other systems use. This topic maps that stack and explains where each decision belongs.
Questions this topic answers
- 01
What are the layers of a modern AI stack, and which ones do you actually own?
- 02
Where does retrieval sit relative to the model, and why does that placement matter?
- 03
How do orchestration, tool calling, and evaluation fit into the same diagram?
- 04
Which parts are stable infrastructure and which parts will be replaced in a year?