Great! To learn and speak the language of AI confidently, it’s important to understand the core terminology. I’ll explain each one in simple, beginner-friendly terms — like talking to a smart 10-year-old — and group them into categories so it’s easy to remember.
| Term | Full Form | Simple Explanation |
|---|---|---|
| LLM | Large Language Model | A big AI trained to understand and generate human-like text (e.g. GPT-4). |
| RAG | Retrieval-Augmented Generation | A method where the AI fetches facts from documents before answering. |
| FAISS | Facebook AI Similarity Search | A tool to store and search text as vectors (used in RAG for memory). |
| CoT | Chain of Thought | Teaching AI to solve problems step-by-step, like showing its work. |
| ReAct | Reason + Act | AI thinks out loud and then takes an action (used in agents). |
| API | Application Programming Interface | How apps and tools communicate with AI services like OpenAI. |
| LangChain | – | A framework to build AI apps that use tools, memory, and agents. |
| Embedding | – | Turning words into numbers so they can be stored or searched. |
| Agent | – | An AI that can plan steps and use tools—like a digital assistant. |