Every AI tool is 3 parts

1. The door: what you touch

The door is the interface. It's the part you actually see and type into: the chat app on your phone, the AI button in WhatsApp, the sidebar in Excel at the office.

Each door looks different, but there is often the same kind of thing behind every one of them. A new app is not the same as a new AI. Many products are a fresh door on an engine someone else built, so when a vendor shows you a slick screen, you are looking at the door.

2. The brain: the model behind the door

Behind the door is the engine, the AI model that does the thinking. GPT 6.1 Sol, Claude Opus 5.5 and Gemini 4 Argon are brains. A few companies build them, and many apps rent them.

Here's what nobody tells you:

• It learned up to a date, then stopped. Unless it's connected to search, it doesn't know what happened after that.
• It predicts the most likely answer. It doesn't look facts up. That's why it can sound one hundred percent sure and still be completely wrong.
• Most “new AI” headlines are just a brain upgrade. Good to know, but rarely a reason to change how you work.

3. The keys: what it can reach

The keys are the connections: what the AI is allowed to see and do. Plug in your Drive, your email and your calendar, and suddenly it knows your work. It can find last month's invoice or tell you when your next meeting is.

The flip side matters just as much. Whatever you don't plug in, it can't see. You hold the keys, so connect what helps and keep out what doesn't, especially your IC number, bank details and TAC codes.