A conversational interface, often powered by an LLM, that interacts with users through natural language.
Friendly Description: A chatbot is a computer program you can talk to in regular language, just like texting a friend. Some chatbots are very simple and only handle a few questions, while modern ones powered by AI can hold real conversations, help you brainstorm, or answer questions on almost any topic. They're designed to feel natural and helpful, like a knowledgeable concierge available anytime.
Example: When you visit a bank's website at 11 PM and a chat bubble pops up offering to help, that's a chatbot. You ask, "How do I reset my password?" and it walks you through the steps right there, without making you wait for a human agent the next morning.