Google Gemini explained: the AI that's already in your phone and your search
You may already be using Gemini without knowing it — it's in Google search, in Gmail, and on most Android phones. What it is, where it hides, and how to use it on purpose.
Gemini is Google’s AI. Unlike ChatGPT, which you have to go and find, Gemini has a habit of turning up on its own — at the top of a Google search, in Gmail, on your Android phone. If you’ve seen a little sparkle symbol ✦ somewhere in a Google product lately, that’s it.
This guide is about recognising it, deciding whether you want it, and using it deliberately rather than by accident.
Where you’ll meet it
At the top of Google search. Search for almost any question and, above the usual list of links, you may see an “AI Overview” — a paragraph written by Gemini summarising an answer. It’s often helpful. It’s also occasionally wrong in the same confident way all AI can be, so treat it as a starting point, and scroll down to the actual websites for anything that matters.
In Gmail. Buttons offering to “help me write,” summarise a long email, or suggest replies. Optional; ignore them if you like.
On Android phones. Many newer phones have replaced the old Google Assistant with Gemini. Hold the power button or say “Hey Google” and you may be talking to it. It can do what the Assistant did — timers, calls, directions — plus answer questions in full sentences.
As its own chatbot. Go to gemini.google.com and you get a plain chat window, exactly like ChatGPT. This is the version to use if you want to choose to use AI rather than have it appear.
What it costs
The basic version is free. If you have a Google account (you do, if you use Gmail or an Android phone), you can use gemini.google.com now. Like ChatGPT’s free tier, it’s more than enough for everyday use.
There’s a paid version bundled into Google’s subscription plans, with a more capable engine and extra storage. Same advice as always: don’t start there. See if the free one does what you need.
How to start
- Go to gemini.google.com in your browser.
- Sign in with your Google account if asked.
- Type in the box at the bottom. Try: “What’s the difference between a virus and bacteria, in plain English?”
- Press Enter. Read. Ask a follow-up.
It works exactly like ChatGPT. If you’ve used one, you’ve used the other.
One thing Gemini does differently
Because it’s Google’s, it can connect to your other Google things — Gmail, Calendar, Drive — if you let it. So you can ask “when’s my dentist appointment?” and, if it’s in your Google Calendar, it’ll tell you.
This is handy and also worth a moment’s thought. It means the AI can read your emails and calendar to answer you. Many people are fine with that; some aren’t. It’s a setting, and you can leave it off. The chatbot works perfectly well without it.
Three honest points
The “AI Overview” in search is not the same as looking it up. It’s a summary, generated on the spot. For a recipe or a general question, fine. For medical, legal or financial facts, scroll past it to a real source.
Being everywhere isn’t the same as being better. Gemini is very good. So are the others. Google’s advantage is convenience, not magic.
It stores what you type, like all of them. The usual rules apply: no passwords, no ID numbers, no other people’s private details. There’s a setting to stop your chats being used for training — it’s called “Keep activity” (older versions call it “Gemini Apps Activity”) and you can turn it off. (How.)
If you’d rather it went away
You can. On many Android phones Gemini has now replaced the old Assistant completely, and there is no way back. Where the option still exists, search your phone’s settings for “digital assistant”. In search, you can’t fully remove AI Overviews, but you can ignore them, and adding the word “-ai” to the end of a search hides them on some versions. In Gmail, the suggestion buttons can be switched off under Settings → “Smart features.”
None of this is required. The point is only that it’s your choice — and now you know where the switches are.
The short version
Gemini is Google’s chatbot. It’s free, it’s good, and it may already be in your phone. Use it on purpose at gemini.google.com, treat the search summaries with the same healthy caution as any AI, and keep your personal details out of it — same as the others.
