A chatbot answers in one shot. An AI agent runs in a loop, uses tools, and acts — Thought → Action → Observation → repeat — until the job's done. Watch one solve a multi-step task by calling a calculator and a search. 🤖 Run the agent: https://dev48v.infy.uk/ai/days/day11-agents.html Agent = LLM + tools + a loop You describe tools to the model (name, purpose, arguments). It can't divide big numbers reliably or know today's data — but it CAN decide "call the calculator with ...