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How to use ChatGPT and Claude together on the same files

Short answer

Use ChatGPT and Claude together by keeping the work in a file both can open: connect each to the same 1folder folder, ask one to save a draft and the other to read and update it. Claude can connect on any plan; ChatGPT saves on Business, Enterprise and Edu and only reads on Pro, so on other plans you upload its file yourself. Each saved change is a version; 1folder shares the files, not the chats.

Checked on November 11, 2026 against 4 sources.

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ChatGPT, Claude and Gemini work from the same saved newsletter and source notes. You ask each to read before editing, and the file keeps one link across saved versions.

Set up each app, once

Connect ChatGPT to 1folder

  1. Add a custom connection. On ChatGPT on the web, open Plugins and press + to add a custom server. Name it 1folder, enter https://1folderapp.com/mcp, set up sign-in and choose Create as a plugin. Older layouts use Apps > Create instead.
  2. Sign in. Follow the app’s prompts to sign in to 1folder with the account holding your work.
  3. Choose the folders and press Allow. Pick the Editorial space or just the folders for this work. Choose View and edit to save files, or View only to review them, then press Allow.
  4. Check one saved file. Ask ChatGPT to save Newsletter draft and return its private link. Open the file and check the actual contents before handing over more work.

ChatGPT saves to 1folder on Business, Enterprise and Edu, on the web (not the phone app); on Business an admin or owner adds it. On Pro it can open your files but not save; Plus, Go and Free can’t add it. Elsewhere, download the file and drag it into 1folder instead.

Connect Claude to 1folder

  1. Add a custom connection. Open Customize, then Connectors, then Add, then Custom, then Web. Name it 1folder, enter https://1folderapp.com/mcp, and continue with the detected sign-in settings.
  2. Sign in. Follow the app’s prompts to sign in to 1folder with the account holding your work.
  3. Choose the folders and press Allow. Pick the Editorial space or just the folders for this work. Choose View and edit to save files, or View only to review them, then press Allow.
  4. Check one saved file. Ask Claude to save Newsletter draft and return its private link. Open the file and check the actual contents before handing over more work.

Claude supports custom connectors on Free, Pro, Max, Ultra, Team and Enterprise. Free is limited to one. Organisation controls may apply.

Connect the Gemini app to 1folder

  1. Add a custom app on the web. In Gemini on the web, open Settings, then Connected Apps. If needed, open Personal Intelligence first. Under Custom apps, choose Add a custom app (or the add field, for your first one), enter https://1folderapp.com/mcp and follow the prompts.
  2. Sign in. Follow the app’s prompts to sign in to 1folder with the account holding your work.
  3. Choose the folders and press Allow. Pick the Editorial space or just the folders for this work. Choose View and edit to save files, or View only to review them, then press Allow.
  4. Check one saved file. Ask Gemini to save Newsletter draft and return its private link. Open the file and check the actual contents before handing over more work.

Google limits custom apps to adults in the US using a personal account, English and Keep Activity. Add on the web; use on the web or phone. Google lists no paid plan.

Ask one app to save, then ask the next to read

  • In ChatGPT

    “Save the full Newsletter draft to my 1folder Editorial folder. Include source links and unresolved questions. Give me the private file link.”

  • In Claude

    “Read Newsletter draft in 1folder. Shorten its introduction to 150 words, preserve quotations and source links, and update that same page.”

  • In Gemini

    “Read Newsletter draft and Source checks in 1folder. List the claims that still need evidence. Save the review in the same Source checks file; do not invent sources.”

  • In ChatGPT

    “Read the current Newsletter draft and Source checks before editing. Fix only the two agreed wording issues below and update the same draft.”

  • In Claude Code

    “Read Landing page brief in my 1folder Editorial folder. Compare it with this repository, ask about missing requirements, then save your implementation notes back to that folder.”

Share a ChatGPT chat with Claude: save the work you want it to continue

1folder does not read the conversation. Ask ChatGPT to save the useful result: the complete draft, decisions, source links and unresolved questions. Claude can then read that saved file through its own permitted connection. It does not receive ChatGPT’s hidden state or a restored conversation.

You can also copy the relevant text between apps or provide a downloaded file when you only need a one-off review. The connected-folder approach is useful when you want both apps to keep updating the same deliverable and be able to compare saved changes.

Hand a newsletter from ChatGPT to Claude

  1. Connect both to Editorial

    Choose the same folder in each app’s Allow page. Give an editing app View and edit, or View only if it should review without changing the draft.

  2. Save the actual full article

    Ask ChatGPT to save Newsletter draft with all its text and source links. Open it and confirm that the article is present rather than just a short summary.

  3. Ask Claude for one edit

    Have Claude read the saved article, shorten the introduction to 150 words and preserve quotations. Ask it to update the existing page.

  4. Compare, then hand it back

    Compare the saved versions. Ask ChatGPT to read the current file before working on the conclusion; an earlier chat answer may contain an older draft.

Use ChatGPT and Gemini together

Connect Gemini to the same folder if you meet Google’s custom-app requirements: age 18 or over, in the US, personal Google Account, English and Keep Activity on. Setup is on the web; the connection can then be used on the web or phone. These limits differ from Gemini’s separate memory and chat import.

For example, ChatGPT saves a newsletter draft and a Source checks page with the evidence you already have. Ask Gemini to read both and record claims needing evidence. A review is useful when it points to specific unsupported sentences; do not treat an app’s approval as proof the claims are true.

Use Claude and Gemini together

Claude can save a full draft to Editorial, and Gemini can update a separate source-review page in the same folder. Then ask Claude to read the review before revising the draft. You choose which task each app does and which edits to accept.

If you want both editing the same page, take turns. Have the second app read the latest saved version first, make one bounded change and save to the existing file. Keeping two unsynchronised chat copies of the text can cause older wording to be written over newer edits.

Use Claude Code and ChatGPT together on a page brief

  1. Add the coding app once

    From your terminal, run claude mcp add --transport http 1folder https://1folderapp.com/mcp. In Claude Code open /mcp and complete sign-in. Allow the same folder used by ChatGPT.

  2. Save the brief in ChatGPT

    Ask ChatGPT to save Landing page brief with the audience, exact copy, required sections and acceptance criteria. Open and check it before implementation.

  3. Have Claude Code inspect the repository

    Ask it to read the brief and inspect the actual code before proposing changes. Keep source changes in your normal Git workflow; 1folder does not synchronise repositories.

  4. Save what was verified

    Ask Claude Code to save the code revision, files changed, checks actually run and unanswered questions as Implementation notes. ChatGPT can read those notes when you ask, without receiving the coding session.

Keep one current file and deliberate access

  • A connection gives an app the option to save. Ask it to save and return a private file link; nothing starts copying all your chats automatically.
  • Add “save my work to 1folder” to app instructions if you want a standing reminder. Still check the file the app returns.
  • Connect an app only to the folders needed for the task. Remove that app in 1folder’s Connections to stop its access immediately.
  • Only you can make the saved draft public. A connected app with access can read a private file without a public link.
  • If an app can’t add a custom connector on your plan or in your country, hand over a downloaded file or copied text instead. 1folder can’t change an AI app’s plan rules.

Questions

Can I share a ChatGPT chat with Claude?
You can provide relevant text yourself. Through 1folder, share a saved draft or handoff from that chat, rather than importing the conversation. Ask Claude to read the saved file.
Do the apps pass tasks to each other automatically?
No. You ask the first app to save and the second to read and continue. 1folder keeps the files; it does not run agents or coordinate their conversations.
Can I use ChatGPT and Gemini together too?
Yes, through saved files when both accounts support the required connections. Gemini’s custom-app rules currently include US location, a personal adult account, English and Keep Activity.
Can I use Claude and Gemini together without ChatGPT?
Yes. Give both access to the same folder, save the draft in one and ask the other to read it. ChatGPT is optional in that workflow.
How do I use Claude Code and ChatGPT together?
Have ChatGPT save a checked brief, then ask connected Claude Code to read it and inspect the repository. Claude Code can save implementation notes for ChatGPT to read next. Code itself still moves through Git.
Must I turn on a public file link?
No. Keep the file private and give each connection access to its folder. Public links are optional and can only be enabled by the person.

Sources

Checked on November 11, 2026.

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