← Resources
Guide

Set up ChatGPT

Use this guide to set up ChatGPT as an agent that does work for you.

At the end you have:

  • An agent that reads your calendar and email and sends you a brief every week.
  • Instructions that tell ChatGPT who you are and how you work.
  • A first small tool that you built with Codex.

Time: about 90 minutes. You do this one time.

If you use Claude, use the Claude guide.

How to use ChatGPT

The ChatGPT desktop app has three modes. Use the mode that matches the task.

Mode Use it to It can reach
Chat Think, draft and ask questions What you paste or upload, and connected apps
Work Give ChatGPT a task to finish on its own Connected apps, files and apps on your computer, a browser
Codex Build a tool, a script, a dashboard or a website A folder on your computer, or the cloud

Use Chat only to think. Give tasks to Work. Build tools in Codex.

The menu at the top left switches between ChatGPT and Codex. In ChatGPT, the toggle at the top switches between Chat and Work.

Words in this guide

  • Agent: a task that ChatGPT does on a schedule, with access to your tools.
  • Plugin: a link between ChatGPT and one of your tools, for example Gmail. Some plugins also contain skills.
  • Skill: a set of instructions for one type of task. ChatGPT uses it each time that task comes up.
  • Project: a workspace with its own chats, files and instructions.

Before you start

  1. Find out which AI tools your company approves for work data.
  2. If your company approves ChatGPT, use that account.
  3. If your company does not approve ChatGPT, use a personal account.
  4. On a personal account, connect only personal tools. Share only material that you have permission to share.
  5. Get a paid plan, for example Plus. Work does not run on the Free and Go plans. See ChatGPT pricing.

Codex works on all plans. This includes Free. Usage limits change with the plan.

Step 1: Install the desktop app (5 minutes)

  1. Go to chatgpt.com/download.
  2. Download the app for your computer.
  3. Open the app and sign in.
  4. If you also see ChatGPT Classic, that is the old app. Use the new app.

Use the desktop app, not the browser. Only the desktop app can use the files and apps on your computer.

Result: you see the ChatGPT and Codex menu at the top left.

Step 2: Stop ChatGPT from training on your chats (2 minutes)

On personal plans, OpenAI can use your chats to train its models. Do this step before you share work material.

  1. Open your account menu and select Settings.
  2. Select Data controls.
  3. Set Improve the model for everyone to off.
  4. Click Done.

Result: OpenAI does not use your new chats or your Codex tasks for training. Your chat history stays.

Step 3: Tell ChatGPT who you are (40 minutes)

ChatGPT reads your custom instructions before each conversation.

  1. Build your About Me and Voice profiles. Use the prompts in Build your AI profile.
  2. Open Settings, then Personalization.
  3. Make sure that Enable customization is on.
  4. In Custom Instructions, paste a short version of your About Me profile. Include your role, your company and how you want answers.
  5. Save.

ChatGPT also has memory. Memory keeps details that ChatGPT saves as you work.

Result: ChatGPT knows your role and your rules before you type.

Step 4: Connect your calendar and email (10 minutes)

Plugins let ChatGPT read your tools. You do not copy and paste.

  1. In the sidebar, select Plugins.
  2. Find your calendar plugin, for example Google Calendar.
  3. Select Install plugin, then Connect.
  4. Sign in to the tool.
  5. Do steps 2 to 4 again for your email.
  6. Go to Settings, then Apps.
  7. Set ChatGPT to ask you before it sends or changes anything.

You can connect two accounts to one plugin, for example a personal and a work Gmail. To disconnect a plugin, go back to Plugins.

Result: ChatGPT can read your calendar and email. It asks you before it sends or changes anything.

Step 5: Run one task in Work (10 minutes)

  1. In the top left menu, select ChatGPT.
  2. In the toggle at the top, select Work.
  3. Type: "Look at my calendar for next week and tell me what I need to prepare."
  4. Work shows a plan. Read it.
  5. Approve the plan.
  6. Watch Work do the task.

CAUTION: Read each plan before you approve it. Work can act in your connected apps.

Result: you know how Work asks for approval before it acts.

Step 6: Build your first agent (15 minutes)

Your first agent sends you a brief each week.

  1. In the sidebar, open Scheduled.
  2. Create a new task. Or, in a Work chat, ask ChatGPT to run a task on a schedule.
  3. Paste these instructions. Replace the text in square brackets.
Every [day] at [time], read my calendar for the next seven days and my email from the last seven days.
Give me:
1. The meetings that need preparation, and what to prepare.
2. The emails that wait for my reply.
3. What I delivered last week.
Then ask me what changed because of that work. Add my answer to a running log.
  1. Set the day and the time.
  2. Save the task.
  3. Run the task one time now.
  4. Read the brief.
  5. If the brief is not useful, change the instructions and run it again.

On the Scheduled page you can pause, edit or delete a task. A task can run one time per hour at most. On the Free plan you can have three active tasks.

A task can also start when an event occurs, for example a new Gmail message. To set an event trigger, use the web or mobile app. Event triggers do not work on the Free and Go plans.

Result: each week you get a brief, and your log of delivered work grows.

Step 7: Build a tool with Codex (20 minutes)

Codex builds software from your description. You do not need to know how to code. Start with a small tool that you will use.

  1. Make a new folder on your computer, for example "my-first-tool".
  2. In the top left menu, select Codex.
  3. Open your new folder.
  4. Describe the tool. For example:
Build a one-page dashboard that I open in my browser.
It reads my weekly delivery log and shows what I delivered each month and what changed as a result.
Before you change any files, show me your plan.
  1. Read the plan. Ask questions until the plan is clear.
  2. Tell Codex to build the plan.
  3. Read each change that Codex makes.
  4. Ask Codex to open the result. Test it.
  5. If something is wrong, tell Codex what you see. Codex fixes it.

CAUTION: Use a new, empty folder. Codex can read and change the files in the folder that you choose.

Result: you have a tool in your folder, and it works.

To run Codex tasks in the cloud, select Work in, then Cloud. Cloud tasks need Plus or a higher plan.

Step 8: Keep each piece of work in a Project (5 minutes)

  1. Create a Project for one piece of work, for example your year-end review.
  2. Attach your About Me and Voice profiles.
  3. Add instructions that say what the Project is for.
  4. Start each Chat or Work task for that work inside the Project.

CAUTION: Keep the memory setting of the Project on the default. Work does not run in Projects set to project-only memory.

Result: each task starts with the context of that work.

Step 9: Skills, plugins and custom GPTs

  • Skills: personal skills are available on Business, Enterprise and Edu plans. To make one, select Plugins, then the Skills tab. Create the skill with chat or in the editor.
  • Plugins: browse the Plugin Directory and install one plugin for your job. After one week, remove it if you do not use it.
  • Custom GPTs: OpenAI plans to retire custom GPTs and move them to plugins. Keep the custom GPTs that you have. Build new work as a Project, a scheduled task or a plugin.

Learn more

Work on this with other operators.

See the programme