What you’ll be able to do

You’ll be able to take a group chat you’ve ignored for a week, paste it into an AI assistant, and get back something readable in about thirty seconds. What did I miss, what got decided, what’s still hanging over me, that sort of thing. No more scrolling through 400 messages trying to work out if you agreed to host Christmas.

Before you start

Right, so first thing. AI is genuinely good at this job. Summarising is one of the things it does best, actually, better than a lot of the flashier stuff people talk about. You give it a big pile of text, it finds the shape of it. What people wanted, what got agreed, what’s left open.

But here’s the bit people skip past: a group chat isn’t just your messages. It’s your mate’s, your sister’s, your work colleague’s. The moment you paste that into an AI tool, you’re handing over other people’s private conversations, sometimes with names, sometimes with things they’d rather not see typed into a chatbot. Doesn’t mean you can’t do it. Just means you should think about what’s actually in there before you copy it.

Also worth knowing: AI can get dates wrong, misread sarcasm, and occasionally invent a decision that was actually just banter. It’s a first pass, not a verdict. Treat the summary as a starting point, and always keep the original chat open so you can double check anything that matters.

Get set up

You don’t need anything fancy for this. A free account on ChatGPT, Claude, or Gemini will do the job. I’d lean towards Claude or ChatGPT for long chats, they both handle big blocks of text well, but honestly any of the mainstream ones will get you most of the way there.

The real question isn’t which AI, it’s how you get the chat into it in the first place.

For WhatsApp, there are two routes. The first is copy-paste, which works fine for shorter chats, just tap and hold a message, select more, copy, then paste into your AI tool of choice. The second, better for anything longer than a day or two, is exporting the chat properly. Open the chat, tap the contact or group name at the top, scroll down to “Export chat”, and choose without media (you don’t want a phone full of photos clogging things up). WhatsApp will let you share that exported text file, and you can send it to yourself or drop it straight into an email, then copy the contents into your AI chat.

Meta has also been rolling out its own AI summaries directly inside WhatsApp for unread chats, in some countries at least, and Meta says these are processed privately. If you see that feature appear for you, it’s worth trying, it’s built for exactly this. But it’s not available everywhere yet, so the export-then-paste method is still the reliable one that works regardless of where you are or what version of the app you’ve got.

Messenger and Instagram are a bit more stubborn. Neither has a proper export-to-summary feature the way WhatsApp does. So for those, it’s copy-paste, plain and simple. Select the messages, copy them, paste them into ChatGPT or Claude along with your question. A bit more manual, but it works just as well once the text is in front of the AI.

Try it yourself

Once you’ve got your chat copied or exported, paste it into your AI assistant and add a prompt. Here are three that do different jobs, depending on what you actually need to know.

If you just want the headline version, the “what did I miss” catch-up:

Here's a group chat I haven't read in a week. Summarise what was
discussed, in plain language, as if you're catching me up over coffee.
Keep it short, no more than 200 words.

[paste chat here]

If you need to know what’s actually been agreed, so you’re not the person who shows up to the wrong restaurant:

Read this chat and tell me three things:
1. What was decided, and by whom
2. What was asked of me specifically, if anything
3. What is still unresolved or waiting on a reply

[paste chat here]

And if you’re trying to untangle something messier, a work group chat where a decision keeps getting revisited, say:

This chat has a lot of back and forth. Trace how the discussion on
[topic] changed over time. What was the original plan, what changed
it, and what's the current state of the plan now?

[paste chat here]

That third one’s handy for group chats where nothing gets decided cleanly, everyone circles back three times. It won’t magically fix a chat that goes in circles, but it will show you the circling, which is honestly half the battle.

Check the result

Don’t just take the summary and run. A few quick checks.

First, skim the original chat for anything with a date, a time, or a sum of money. AI can slip up on these, mixing up “next Tuesday” with an actual date, or misreading a number. If the summary says “you agreed to pay £40”, scroll up and check that’s really what was said.

Second, ask the AI directly to double-check itself:

Are you confident about the dates and numbers in that summary? Point
to the specific messages you took them from.

If it can’t point to anything solid, or it hedges, that’s your cue to go back to the original chat and look yourself.

Third, ask yourself: does this summary sound like the chat you know? If it’s a chatty family group and the summary reads like a corporate memo, something’s been lost in translation. Ask it to redo the tone, or just accept the content and ignore the phrasing. Either’s fine.

And if there’s a real decision buried in there, something with a deadline or a cost attached, treat the AI’s version as a lead, not a source. Go check the actual messages before you act on it.

If it doesn’t work

Most problems here come down to one of three things.

The chat’s too long and the AI’s lost the thread. Some tools cap how much text you can paste in one go. If that happens, split the chat into chunks, maybe by week, and summarise each bit separately, then ask the AI to summarise the summaries.

The AI’s missed the joke, mistaken a sarcastic comment for a genuine plan. Read through anything that sounds oddly definite, “everyone agreed to move house together”, and sense-check it against what you remember.

Or, the bigger one: you’ve realised halfway through pasting that this chat has stuff in it that shouldn’t be anywhere near a chatbot. Health details about a friend. Someone’s legal trouble. A family member’s financial situation. If that’s the case, stop. Don’t paste it. Summarise for yourself by reading it, or strip out the sensitive bits first and only paste the rest.

This matters more than people think. A group chat is other people’s private words, not just yours. Fine to summarise for your own benefit, not fine to hand wholesale to a public AI tool if it’s full of things about people who never agreed to that. When you’re done, delete the pasted text from wherever you put it, the AI chat, your notes app, anywhere it’s sitting. Bit of housekeeping, but worth doing.

Keep exploring

Once you’ve got the hang of summarising chats, the same basic idea works for a stack of other things piling up on you. If your inbox is the real problem, have a look at “How to get AI to handle my emails”. If it’s a long report or contract rather than a chat, “How to get AI to summarise a document” covers that. And if the issue is less “what did I miss” and more “what am I supposed to be doing this week”, “How to get AI to organise my schedule” is the natural next step.

Sources and review notes

Review date: 15 September 2026 — every source above was opened and checked against the text on that date.