AI glossary
Definitions written for someone who has to make a decision, not pass an exam. Each entry says what the term means, when it matters and what it does not solve.
R
Reasoning model
A model trained to spend extra computation working through a problem before answering.
Retrieval-augmented generation RAG
A pattern where relevant documents are fetched first and pasted into the prompt, so the model answers from your data rather than its training.