GroupChatRobot Public rooms

An AI group chat anyone joins from a link.

ChatGPT ended group chats. No account to join: send a link, people type a name, and the whole group asks the same robot.

Start an AI group chat Browse rooms

Nothing to install. Free during beta.

Type the code someone sent you.

A group chat of four friends planning a cabin weekend, on a phone. Priya asks the robot what time they can get in and whether there is a grill, and it answers from the booking PDF. Sam asks what one night costs, and the robot splits the $1,240 by nights.

Bringing a group over from ChatGPT

OpenAI stopped new ChatGPT group chats on July 9, 2026, and the old ones are going read-only.

  • Everyone talks to the same robot. Start a message with robot, or tap the robot button. It can also join in when it can help, and the room's owner decides how often.
  • Ask something just for you. Switch a question to Private and only you see the answer.
  • Pick up where you left off. Add screenshots of the old chat and the robot reads them.

Start an AI group chat

How a room works

One room holds one group, and everyone in it sees the same history from the first day.

  1. Start a room. Name it after the group. You get a link and a short code.
  2. Send the link. People open it on their phone and type a name. They do not need an account or an app.
  3. Talk and share files. Messages arrive the moment someone sends them. The robot stays quiet until someone starts a message with Robot or hey robot, or writes @robot. Alone in a room, you get an answer to every question.
How a room works. You share one link or code. Each person opens it in any browser on a phone or laptop, with no app store. When one person sends a message, the room saves it and everyone else sees it at once. The robot is a member of the room and answers only when someone starts a message with Robot or hey robot, or writes @robot. Share one link or code groupchatrobot.com/r/K7QX2M Opens in any browser. No app store. You Maya Leo sends everyone sees it at once Room K7QX2M Keeps every message and file. You Maya Leo Robot The robot reads everything and answers only to @robot, or to a message that starts with Robot.
Everyone joins through one link.

What the robot remembers

The robot reads each PDF, photo, Word, Excel and text file dropped in the room and posts a short summary.

Ask it a question and it answers from the room's messages and files, naming the file it used.

It reads PDFs and photos up to 15 MB, Word and Excel files up to 25 MB and text files up to 200 KB, and the first 200,000 characters of a longer Word or Excel file. Any file can be up to 100 MB.

It listens to voice notes and writes out what was said. It watches videos and video links, so you can ask it what was in them.

What the robot remembers. You drop a file into the room. The robot reads it and posts a short summary. It files each part of the file two ways, by its exact words and by what it means. Later, when someone asks @robot about it, the robot finds the parts that match by wording and by meaning, answers from them, and names the file it used. PDF scope-v2.pdf You dropped it in. 412 KB. the robot reads it Read scope-v2.pdf Phase two adds a menu page and online orders, launching Nov 14. split into parts each part filed two ways By word finds the same words By meaning finds the same idea Later, someone asks @robot sum up phase two from the scope, please Finds the closest parts by wording and by meaning answers from them Robot Phase two covers the menu page and online orders. scope-v2.pdf
The robot files each part by wording and by meaning.
The sample grant room on a phone. Denise asks the robot for the deadline in the RFP. The robot answers that riverside-community-fund-rfp.pdf says Friday, November 20, 2026 at 5:00 PM Eastern, lists what is still missing, and links the PDF.

Save the room to your phone

Anyone can add a room to the home screen, where it opens like an app and sends notifications.

iPhone
iPhone sends notifications only to rooms on the home screen, which is why step 2 is Add to Home Screen. A link opened inside Gmail or another app needs Safari first: tap the compass at the bottom right, or Open in Safari in that app's menu. When Safari shows no Share button, Share is under the three dots beside the address bar.
Android
Notifications work without saving the room to the home screen.
Saving a room to your phone. On iPhone, with the room open in Safari, tap Share, or the three dots beside the address bar and then Share, tap Add to Home Screen and then Add, open the room from its new icon, and turn on notifications. iPhone only sends notifications to rooms saved to the home screen. On Android, open the link in Chrome and turn on notifications; no home screen step is needed first. After that, the room sends a notification to every phone that turned them on. iPhonein Safari Androidin Chrome 1Tap Share 2Tap Add to HomeScreen, then Add 3Open the roomfrom its new icon 4Turn onnotifications 1Open the room link 2Turn onnotifications Rosa in Maple Street Bakery site The menu photos are in.
iPhone takes four steps and Android takes two.

Run a client project in a chat, not in email

A group chat for you and your client. The robot reads the PDFs and photos you share and answers when you ask.

Your client opens the link and types a name, the same as everyone else.

Open the sample project room
The sample project room on a phone. Rosa asks the robot which logo they picked, and the robot answers option B, logo-b-maple-leaf.png, with a link to the file.

Why not just use WhatsApp?

Your client probably uses WhatsApp already, but three things go wrong once a project lives there.

SituationWhatsAppGroupChatRobot
Someone joins late A bookkeeper added in month three sees nothing from before. They see everything and can ask the robot what was decided.
You need a file Search finds message text, not what is inside a PDF. You ask the robot what is inside the PDF. It has read it.
Phone numbers Everyone sees everyone else's number. People join with a name, so nobody sees a number.

Slack has a different problem. Your client is not in your team's Slack and will not join it, so give the project a room.

Open a sample room

These four rooms are public. Join with any name and try the robot.

What people ask first

I need to know who can see our files.

A private room stays off the public list and opens only with its code. The robot indexes each room's messages on our own server, and uses Google only when that server is busy. When someone drops in a photo or PDF, the robot reads it with Google Gemini or Anthropic Claude. If you tell the robot about yourself with a CV, a link or a few lines, it reads the file once without storing it and keeps a short summary so it knows who you are. It may mention that summary in the room. Nobody else sees your file or link. You can remove it at any time, though anything the robot already said stays in the chat. When someone asks the robot something, the question, the room's messages and its files go to AI models on OpenRouter, currently OpenAI GPT-6 Luna with Google Gemini Flash-Lite as the backup. When the robot searches the web or opens a link, the search words or the link go to search providers. When a message links to a web page, a picture, a gif or a short video, our server fetches it and keeps a copy of the picture or video so the room can show it. Joining a room needs no account. Starting a room or sharing photos, files and voice notes needs a Google sign-in, and then we keep your Google ID, email address, name and picture address; the robot never sees them, and nobody in the room does. We collect no phone numbers. We do keep a usage record to see how the app gets used: which features people use, how often and how fast, and what the robot costs. It never holds what anyone writes or anyone's name, and it counts devices by a scrambled ID. Rooms are not end-to-end encrypted, and a room stays until its owner clears or deletes it. The privacy page has the rest.

I do not trust a robot to get the facts right.

It can be wrong, so it names the file it used and you can check.

We will still need this after the project ends.

The room stays, so a year later you can still ask what was decided.

Start a group chat with a robot in it

Start an AI group chat