🧠 Basics
What it means: Computer programs that can do things that used to need a person, like writing, answering questions or recognizing a photo.
Think of it like: Like a very well-read helper who has never actually lived in the real world.
Example: You type “Write a birthday note for my sister” and AI writes one in seconds.
See also: Chat / chatbot · LLM (large language model)
What it means: A chat is a conversation you type (or say) to an AI, and a chatbot is the AI that answers you back.
Think of it like: Like texting a helpful friend who answers instantly, any time of day.
Example: ChatGPT, Claude, Gemini and Grok are all chatbots: you type a message, they reply.
See also: Prompt · AI (artificial intelligence)
What it means: The message or question you give the AI.
Think of it like: Like the order you give at a restaurant: the clearer the order, the better the meal.
Example: “Plan 5 cheap dinners for 2 people, no fish, under 30 minutes each” is a good prompt.
See also: Chat / chatbot · Custom instructions · Our guide →
What it means: The “brain” inside most chatbots: a program that learned from a huge amount of writing and now predicts which words should come next.
Think of it like: Like phone autocomplete, but trained on so much text that it can write whole letters and answer questions.
Example: ChatGPT, Claude, Gemini and Grok are all powered by LLMs.
See also: Model · Training · Token
What it means: Short for “generative pre-trained transformer,” the name of OpenAI’s family of AI models; “generative” means it creates new text.
Think of it like: Like an engine name: GPT is the engine, ChatGPT is the car you actually drive.
Example: When people say “GPT-5” they mean a version of OpenAI’s model, not the app.
See also: ChatGPT · LLM (large language model)
What it means: One specific version of an AI brain; companies release new models that are smarter, faster or cheaper.
Think of it like: Like phone generations: same brand, newer model, better features.
Example: Many apps let you pick a model from a menu at the top of the chat.
See also: LLM (large language model) · Training
What it means: How an AI model learns: it studies huge amounts of text, images or other examples until it spots patterns.
Think of it like: Like a student reading millions of books, but never leaving the library.
Example: Because training stops at a certain date, some models don’t know recent news unless they can search the web.
See also: Model · Hallucination
What it means: An AI that can handle more than words: photos, voice, files or video too.
Think of it like: Like a helper who can read, look and listen, not just read.
Example: Snap a photo of a confusing bill and ask, “What does this charge mean?”
See also: Voice mode · Image generation · Our guide →
📱 The big AI apps
What it means: OpenAI’s chatbot app, on the web and on phones, with a free plan and paid plans.
Think of it like: The best-known chatbot, like how “Google” became the word for searching.
Example: Open chatgpt.com or the ChatGPT app, type a question, and it answers.
See also: GPT · Projects · Memory · Official help →
What it means: Anthropic’s chatbot, known for careful, clear writing and for reading long documents.
Think of it like: Like a thoughtful librarian who reads the whole file before answering.
Example: Upload a long lease and ask Claude to list every fee in plain words.
See also: Projects · LLM (large language model) · Official help →
What it means: Google’s AI assistant and model, built into many Google products and Android phones.
Think of it like: Like Google Search learning to hold a conversation.
Example: Ask Gemini to summarize a long email thread in Gmail.
See also: LLM (large language model) · Multimodal · Official help →
What it means: xAI’s chatbot, available in the X app (formerly Twitter) and its own Grok app and website.
Think of it like: Like a chatbot that grew up reading the news feed.
Example: Ask Grok what people are saying about a news story on X today.
See also: Grok Bot · LLM (large language model) · Official help →
What it means: An AI helper from Grok that works on its own cloud computer: it can browse, make files and run jobs on a schedule, and you can make it ask before risky steps.
Think of it like: Less like a chat, more like a virtual assistant with its own desk.
Example: Ask Grok Bot to check a website every morning and tell you when a price changes.
See also: Agent / bot · Automation / routine · Our guide →
What it means: Microsoft’s AI assistant, found in Windows, the Edge browser and Microsoft 365 apps like Word and Outlook.
Think of it like: Like a helper sitting inside the Microsoft programs you already use.
Example: In Word, ask Copilot to turn your rough notes into a one-page letter.
See also: Chat / chatbot · LLM (large language model) · Official help →
What it means: Meta’s AI assistant, built into WhatsApp, Instagram, Facebook and Messenger.
Think of it like: Like a helper hiding inside the apps you already use to chat with family.
Example: In WhatsApp, ask Meta AI for a quick recipe idea without leaving the app.
See also: Chat / chatbot · Privacy and your data · Official help →
What it means: An AI model whose files are shared publicly, so anyone with the right computer can download and run it.
Think of it like: Like a recipe published for free, instead of a dish you can only order at one restaurant.
Example: Some companies run open models on their own computers to keep data in-house.
See also: Model · API
📖 Words you’ll see
What it means: A small chunk of text, often part of a word, that AI reads and writes in; limits are often counted in tokens.
Think of it like: Like counting LEGO bricks instead of whole buildings.
Example: “Unbelievable” might be split into 3 tokens: “un,” “believ,” “able.”
See also: Context window · API
What it means: How much text the AI can keep in mind at once in one conversation.
Think of it like: Like the size of a desk: a bigger desk holds more papers in view at the same time.
Example: In a very long chat, the AI may “forget” what you said at the start because it fell off the desk.
See also: Token · Memory
What it means: When AI says something false but sounds completely sure of it.
Think of it like: Like a confident friend who fills in gaps from memory and gets it wrong.
Example: AI invents a book title or a court case that doesn’t exist. Always check names, numbers and sources.
See also: Training · AI scams · Our guide →
What it means: A saved note about you and how you like answers, so you don’t repeat it in every chat.
Think of it like: Like telling a new barber once, “short on the sides, always,” and they remember.
Example: “I’m 72, explain things simply, use big steps and no jargon.”
See also: Memory · Prompt · Our guide →
What it means: A setting that lets the AI remember useful details about you across different chats, which you can view and delete.
Think of it like: Like a notebook your helper keeps about you, that you’re allowed to read and erase.
Example: You mention you’re vegetarian once, and later meal ideas skip meat.
See also: Custom instructions · Privacy and your data · Our guide →
What it means: Folders in ChatGPT or Claude that keep chats, files and instructions for one job together.
Think of it like: Like a binder for one topic: everything about your garden in one place.
Example: A “Grant writing” Project holds your nonprofit’s mission and budget so every chat starts informed.
See also: Memory · Custom instructions · Our guide →
What it means: An AI that doesn’t just answer, it takes steps for you, like browsing, filling forms or drafting messages, ideally with your approval.
Think of it like: A chatbot gives directions; an agent drives the car (and should ask before turning).
Example: An agent checks 5 store websites and makes you a price list.
See also: Automation / routine · Grok Bot · Our guide →
What it means: A job the AI does on its own on a schedule or when something happens, without you starting it each time.
Think of it like: Like a coffee maker on a timer.
Example: “Every Monday at 8 a.m., send me a summary of this week’s weather and my to-dos.”
See also: Agent / bot · Scheduled tasks · Our guide →
What it means: ChatGPT’s name for routines: reminders or briefings it sends you at a set time.
Think of it like: Like an alarm clock that also tells you something useful.
Example: “Every weekday at 7 a.m., give me 3 headlines about my town.”
See also: Automation / routine · Our guide →
What it means: Talking to the AI out loud and hearing it answer, instead of typing.
Think of it like: Like a phone call with a very patient helper.
Example: Ask out loud while cooking: “How do I swap eggs in this recipe?”
See also: Multimodal · Our guide →
What it means: AI making a brand-new picture from your description.
Think of it like: Like describing a scene to an artist who paints it in seconds.
Example: “A cozy picture of a bake sale table with pies” for your club newsletter.
See also: Multimodal · Deepfake
What it means: A way for one computer program to talk to another; companies use an AI’s API to build it into their own apps.
Think of it like: Like a restaurant’s takeout window: other businesses order from the same kitchen.
Example: A store’s website chat may run on an AI company’s API behind the scenes. Most people never need one.
See also: Token · Open-source (open) model
🛡️ Staying safe
What it means: What happens to what you type: some apps may save chats or use them to improve their AI unless you change settings.
Think of it like: Like talking in a coffee shop: assume someone could overhear.
Example: Never paste passwords, card numbers, Social Security numbers or medical record numbers into a chat.
See also: Memory · AI scams · Our guide →
What it means: A fake photo, video or voice made with AI to look or sound like a real person.
Think of it like: Like a very convincing mask, made by a computer.
Example: A video of a celebrity “endorsing” a crypto app they never mentioned.
See also: AI scams · Image generation · Official help →
What it means: Tricks that use AI, like cloned voices of family members, fake videos or perfect-looking scam emails, to get money or information.
Think of it like: Old scams wearing a new, more convincing costume.
Example: A call that sounds like your grandson asking for bail money. Hang up and call him back on his known number.
See also: Deepfake · Privacy and your data · Official help →
What it means: AI is a first draft, not the final word, especially for health, money, legal and emergency questions.
Think of it like: Like a GPS: helpful, but you still look at the road.
Example: Ask AI to explain your lab results in plain words, then bring those questions to your doctor.
See also: Hallucination