What is an AI agent, in plain terms?
An AI agent is a language model that is allowed to take actions, not just write answers: it can open files, call tools, check its own results and keep going unt…
checked 30 Sep 2026
AI, decoded • one question per page • free
The
The
Decoder
The words and questions behind AI, defined in plain English, with the numbers checked on a date you can see. No story, no pitch. One question, one answer, one table.
4 questions answered
Why does AI make things up?
An AI hallucination is a confident answer that is not true: the model produced the most likely sounding text rather than a checked fact, because it was trained…
checked 30 Sep 2026What is a context window?
A context window is the most text an AI model can hold in view at once, counted in tokens: your messages, its replies, any pasted files and its hidden instructi…
checked 30 Sep 2026What is a token in AI?
A token is the unit of text an AI model reads and writes: a chunk about four characters long in English, so a short word is one token and a long word is two or…
checked 30 Sep 2026