If you write short pieces and finish them in one chat, you don’t need ChatGPT Space. It helps when an article takes several rounds, depends on source files, or needs feedback from colleagues. Space keeps the draft as a Page that you, your team and ChatGPT can all read, comment on and edit.

Space is available on ChatGPT Pro, Business and Enterprise, in the web and desktop apps. On mobile you can read and share Pages but not edit them yet.

What is ChatGPT Space?

OpenAI launched Space at DevDay on September 29, 2026. It replaces Library and holds your Pages and files in one place.

A Page is a document you write with ChatGPT. You can turn a conversation into a Page, start from a template, or write from scratch. Several people can edit the same Page at once, leave comments, and ask ChatGPT to revise a part. Pages can also pull updates from connected tools such as Slack and Google Drive.

What goes wrong when you write in a ChatGPT chat?

Chat is good for working out an idea and getting a first draft. Since canvas was removed on May 28, 2026, drafts appear as writing blocks inside replies. You can highlight a passage and ask for changes, but each revision arrives as a new reply. After a few rounds, the version you want to keep is somewhere in the conversation, mixed in with the discussion.

Projects keep your files and related chats together, so you don’t upload the same notes every time. The draft still lives in a reply, though. To get feedback, you share the chat or paste the text into Google Docs, and your colleagues’ comments never come back to ChatGPT.

What goes wrong when you write with Codex?

Codex opens a local folder, reads your notes and edits your files directly. That makes it good at working from sources, and every change shows up as a diff.

But it is built for code. A diff shows lines: when Codex rewords one sentence, you see the whole paragraph removed and added again, and you have to compare the two by eye. Reading a long article in a terminal or code view is tiring. There is nowhere to leave a comment on a paragraph, and a colleague who doesn’t use Codex can’t join in.

What does Space fix?

  • The draft has its own place. You turn a conversation into a Page. The discussion stays in the chat, and the Page holds the current version.
  • Feedback lands on the text. You comment on a paragraph or ask ChatGPT to revise it there, instead of getting a new copy of the whole draft.
  • Sources stay close. Files you upload and pages you generate sit in the same Space, and connected tools keep the Page up to date.
  • Colleagues work on the same Page. They edit and comment in the document instead of in a separate thread.

When don’t you need it?

If the task is short, needs little background and gets done in one pass, a chat is enough. A bio, an email or a product description doesn’t need a workspace.

The same is true if your current setup already works. On Plus, writing blocks and Projects cover most solo writing. Upgrading to Pro just for Space makes sense only if the problems above slow you down.

For companies with data residency requirements, note that Space and Pages are not covered by OpenAI’s EU data residency as of launch.

What if you want Claude and Codex on the same draft?

Space works inside ChatGPT, with ChatGPT and OpenAI’s own agents. If you want Claude to write the first draft and Codex to check it, or you want your drafts and sources to stay as files on your own computer, you can try our app, StashBase.

It brings the same fixes to a local folder:

  • Open documents beside the chat and pick Claude Code, Codex or Antigravity for each conversation in the same project. See the agent setup guide.
  • The agent’s revisions appear in the document as suggested changes. You accept or reject each one, instead of reading a line diff.
  • PDFs, Word files and images become searchable text, so the agent can find the passage that supports a claim. See search.
  • Past articles and notes stay in the project for the next piece, and a Wiki can organize topics with links to the sources.

You sign in with your existing Claude or ChatGPT subscription, and StashBase adds no extra AI fee for those agents. It doesn’t do real-time editing with colleagues; if your team needs to write in the same document at the same time, Space is the better fit.

For how to split one article between two models, see Draft with Claude, Finish with Hemmingway. For how to keep your own voice when writing with AI, see How to Write with AI Without Losing Your Voice.