Glossary · 39 terms
AI jargon, in plain English.
LLMs, tokens, .md files, Codex, skills... AI comes with a lot of new words. Here's what they mean, and whether you actually need to care.
The basics
- AI (artificial intelligence)
Computer software that can do tasks we'd normally think need a person, like writing, summarising or answering questions. In this course, "AI" means chat tools such as ChatGPT, Gemini, Copilot and Claude.
- Generative AI
AI that creates something new, such as text, images, audio or video, based on what you ask for.
For you: This is the kind of AI you use to draft emails, posts and descriptions.
- Chatbot or AI assistant
An AI tool you talk to by typing (or speaking) in a conversation. You ask, it answers, and you can reply to steer it.
- Prompt
What you type into an AI tool: your question, instructions and any details it needs.
For you: Better prompts get better answers. That's what lesson 3 is about.
- CAWR
Jack's four-part prompt checklist: Context, Action, Warnings, Result. It makes sure you've told the AI who you are, what you want, what to avoid and what the finished thing should look like.
- Context
The background the AI needs to do a good job: your business, customers, location and goal. Without it, AI fills the gaps with guesses.
- Hallucination
When AI states something that isn't true, like a made-up fact, statistic, review or quote, often very confidently.
For you: The reason you always check facts, prices and claims before publishing.
- Output
Whatever the AI gives you back: an answer, a draft, a list or a file.
- Follow-up (or iteration)
Replying in the same chat to improve an answer, like "make it shorter". Each round is an iteration.
- Model
The "brain" behind an AI tool. Companies release new models over time, and one tool can offer several, some faster and some more capable.
For you: If an answer is weak, a different model in the same tool may do better.
- LLM (large language model)
The type of model behind AI chat tools. It has learned patterns from huge amounts of text and predicts useful words in response to your prompt.
- Training data
The text, images and other material a model learned from before it was released.
- Knowledge cutoff
The date a model's training data stops. It may not know about anything after that unless it can search the web.
For you: Check anything recent, like new rules or prices, yourself.
Tools and features
- ChatGPT, Gemini, Copilot and Claude
Four popular AI assistants, made by OpenAI, Google, Microsoft and Anthropic. All have free versions and all work with the CAWR method.
- Custom instructions
A setting in many AI tools where you save details it should always remember, like your business introduction or tone of voice.
For you: Saves pasting the same context into every chat.
- Projects, Gems and custom GPTs
Names different tools use for saved workspaces or mini-assistants with their own instructions and files. Handy for a recurring job, like writing your social posts.
- Skills
Packaged instructions (and sometimes files or scripts) that an AI tool can load when a task needs them, so it follows the same method every time. Support and set-up differ between tools.
For you: Part of our planned paid course. Not needed for this one.
- Web search or browsing
A feature that lets an AI tool look things up online. Not every tool or plan has it, and it can still misread pages.
For you: If a tool can't open a link, paste the page text instead.
- Multimodal
An AI tool that can work with more than text, such as reading images or PDFs, or listening and speaking.
- Image generation
Creating pictures from a text description. Results vary a lot between tools, and you should check you're allowed to use them commercially.
- Agent
An AI that can carry out a series of steps for you, like researching, filling in forms or editing files, rather than just answering one message.
For you: Powerful, but always check what it did before relying on it.
- Codex
OpenAI's AI coding agent. It writes, fixes and explains computer code for developers, working through tasks in a project.
For you: Useful if you or your developer build websites. You don't need it for everyday marketing writing.
- Claude Code
Anthropic's AI coding agent, similar to Codex: it works on code and files for you, usually from a computer's command line or an editor.
- Copilot
Microsoft's AI assistant, built into Windows, Edge and Microsoft 365 apps like Word and Outlook. (GitHub Copilot is a separate coding helper.)
- Temporary or incognito chat
A chat mode in some tools that isn't saved to your history or used for training.
For you: Good for anything you'd rather not keep.
- Training opt-out
A setting that stops a tool using your chats to improve its models. Usually under Settings, then Data or Privacy.
For you: Worth checking on a free account.
Files and formats
- .md (Markdown)
A plain text file with simple symbols for formatting: # for a heading, - for a bullet, **bold** for bold. It opens in any text editor, and AI tools read and write it easily.
For you: Our downloads come as .md so you can reuse them anywhere.
- .txt (plain text)
The simplest text file, with no formatting at all. Opens on any device.
- .csv
A spreadsheet saved as plain text, with commas between the columns. Opens in Excel, Google Sheets or Numbers.
For you: Handy when you ask AI for a table you want in a spreadsheet.
A fixed-layout document that looks the same everywhere. Many AI tools can read PDFs you upload.
- HTML
The code that web pages are built from. AI can write simple HTML, but check it with whoever runs your website before using it.
- Upload or attachment
Adding a file, like a price list or photo, to your chat so the AI can read it. Don't upload anything private.
The more technical stuff
- Token
The small chunks of text an AI reads and writes, roughly three-quarters of a word each. Limits and pricing are often counted in tokens.
- Context window
How much text an AI can keep in mind at once in a chat. Very long chats can push early details out.
For you: If it "forgets" your details, paste your business introduction again or start a fresh chat.
- API
A way for software to talk to an AI model directly, without the chat screen. Used by developers to build AI into apps and websites.
- MCP (Model Context Protocol)
An open standard that lets AI tools connect safely to other apps and data, like a calendar or a shared drive.
- Automation
Setting up tasks to run by themselves, like sending a follow-up email when a form is filled in. AI can be one step in an automation.
For you: Covered in our planned "Connected marketing systems" course.
- Fine-tuning
Further training a model on specific examples so it behaves in a particular way. Rarely needed by small businesses: good prompts and saved instructions usually do the job.
- RAG (retrieval-augmented generation)
When an AI looks things up in a set of documents, such as your FAQs, before answering, so its answers are based on your information.
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Last reviewed September 2026. AI tools change quickly, so features and names may have moved on since.
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