What is AI, really?
Artificial intelligence (AI) is software that learns from vast amounts of data and can generate text, images, or code. Unlike traditional software that only does what it's programmed to do, AI can respond to free-form instructions — called prompts.
The most well-known category is large language models (LLMs) like ChatGPT or Gemini. These models were trained on billions of texts from the internet and can hold conversations, write articles, translate, or even code.
Why should you care?
- 1Writing texts & emails — AI can draft structure, rewrite a draft, or fix grammar in seconds.
- 2Generating images — create illustrations, logos, or photorealistic images from a text description.
- 3Data analysis & automation — AI processes spreadsheets, summarizes reports, or connects apps for you.
Open ChatGPT and type: "Explain what artificial intelligence is as if I were a complete beginner. Use max 3 sentences."
Open ChatGPTKey terms
LLM
Large Language Model — a model trained on billions of text samples.
Prompt
The text input (instruction) you give to an AI tool.
Token
The basic unit of text for AI — roughly ¾ of a word.
Context
The maximum amount of text AI can 'remember' in a conversation.
Summary
- AI is software that learns from data and responds to text instructions (prompts).
- The most popular AI tools are large language models (LLMs) like ChatGPT or Gemini.
- AI saves you hours of work — from writing to images to data analysis.