PassTheBrief

Moving a project from ChatGPT to Claude, without explaining it all again

You started something in ChatGPT and now want Claude's take — or the other way round. The trouble is that neither one can see the other's conversations. Here is what actually needs to travel between them, and the quickest way to carry it.

Why switching assistants means starting over

ChatGPT and Claude are separate products. Whatever you worked out in one — the plan, the choices you made, the draft you liked — stays in that one. Open the other and it knows nothing about your project.

The usual workarounds are tiring. Pasting a whole conversation is long and messy, and the useful parts get lost among the false starts. Writing a summary by hand works, but you have to do it every time, and it is easy to forget the one decision that matters.

What actually needs to travel

Not the whole conversation — a brief. The same thing you would give a colleague taking over:

  • The goal — what the project is for.
  • Where things stand — what is done and what is not.
  • Decisions already made, so they are not reopened.
  • The work itself — the actual draft or list, not a note saying it exists.
  • What to pick up next.

How to hand it over with PassTheBrief

PassTheBrief keeps that brief for each project, so it is ready whenever you switch. With any assistant, it works by copy and paste — nothing moves between apps on its own, but you never have to write the summary yourself.

  1. 1
    Keep the project in PassTheBrief: its goal, its tasks, and the work each assistant has done.
  2. 2
    Press Pass the brief. It copies the whole project as plain text, including each open task’s prompt and the work done so far.
  3. 3
    Paste it into Claude (or ChatGPT, Gemini, or any other assistant) and carry on from where you left off.
  4. 4
    The copied text asks the assistant to end its reply with a short section for PassTheBrief. Paste the whole reply into the paste box, check the preview, and its work is saved to the right task.

Next time you switch — back to ChatGPT, or on to another assistant — the brief already includes what Claude did.

An example

Say you rewrote your CV with ChatGPT and want Claude to write the cover letter. This is the kind of brief Pass the brief copies (shortened here):

What Pass the brief copies
PROJECT: Job hunt — product designer roles

GOAL
Land a product designer role at a mid-size company by the end of March.

WHERE THINGS STAND
CV rewritten with ChatGPT. Applying to three companies this week.

DECISIONS ALREADY MADE
- Lead with the hospital booking redesign (it has real numbers)
- No agencies

DONE SO FAR
- Rewrite the CV — tightened to one page, every bullet starts with a result
  what it produced:
    (the finished CV text)

STILL TO DO
- 2. Write the cover letter for Northwind [Claude]
  the prompt:
    Write a 250-word cover letter for the Product Designer role at Northwind…

PICK UP HERE
Write the Northwind cover letter, using the CV above.

Claude gets the goal, the CV it should build on, the decision to lead with the hospital project, and exactly what to do next — without you explaining any of it.

If you use Claude or ChatGPT every day: connect them

Claude and ChatGPT can also be connected to your PassTheBrief notebook directly. Then you can say “open my notes” and the assistant reads the project itself and saves its work back, with no copying. Every change it makes is recorded with its name.

Connecting is optional and takes a few minutes in the assistant’s settings; whether ChatGPT offers it depends on your plan. The help page explains how.

Questions

Can Claude see my ChatGPT conversations?

No. They are separate products and neither can read the other’s chats. Anything Claude should know has to be given to it — which is what a brief is for.

Can't I just export my ChatGPT history?

You can download your ChatGPT data, but it is an archive of every conversation you have had, not a summary another assistant can work from. A brief is the few things that matter for one project.

Does this only work for ChatGPT and Claude?

No. Copy and paste works with any assistant that has a text box — Gemini, Perplexity, Copilot and others. The direct connection is for Claude and ChatGPT.

What happens to my notes?

They stay private to you. They are not sold or used to train AI models, and an assistant can only reach them if you connect it. The privacy page has the details.

Try it with your own project

Free while PassTheBrief is new. Nothing to install — sign up with email or Google, and a short tour shows you the rest.