What is a chatbot?

In plain English

A chatbot is software you talk to in a back-and-forth, usually by typing, sometimes by voice. The term covers two very different things. Older chatbots follow fixed rules and scripts: they match your words against a list of known phrases and reply from a pre-written menu, which is why they fall apart when you phrase things unexpectedly. Modern ones sit on top of large language models and generate replies on the fly, so they handle unusual questions, follow-ups and shifts of topic far more gracefully.

Why it matters

Chat has become the default way ordinary people meet artificial intelligence. It needs no training, works on any device and lets you ask for things in your own words. For organisations, chatbots absorb routine enquiries at any hour; for individuals, they act as a general-purpose assistant for drafting, explaining and summarising.

An example

You message a retailer at midnight about a delayed parcel. A scripted bot offers four buttons, none of which match your situation, and eventually passes you to a queue. A language-model-based bot reads your order number, explains where the parcel is, offers a refund option and only involves a human if you ask for one.

What to watch out for

A conversational manner invites more trust than is warranted. Chatbots can state wrong information confidently, and a friendly tone does not mean the thing understands you or cares. They may also have no access to your actual account data unless specifically connected to it, so a plausible answer about your order can be guesswork. Assume anything you type may be stored or reviewed, and look for a route to a human for anything consequential.