What Notion's “one shared brain” for ChatGPT and Claude means for you

On November 4, 2026, Notion posted: "Give all your agents one shared brain in Notion." Its thread says ChatGPT, Claude, Muse, and Bot "can save what they learn to the same memory" and use the same skills. What Claude saves about your work today, ChatGPT can find tomorrow.

Notion's pages quoted here were read on November 5, 2026 (Japan time).

What Notion announced, in plain words

Three pieces, all in your Notion workspace:

• Memories: a private Memories database, with an About page that sums it up. Every AI connected to the same Notion account and workspace can search it and add to it.
• Skills: Notion pages marked as skills, each saying how your team does a task. Every connected AI can load them.
• A setup prompt: agents "often don't think to look in Notion or save things there unless specifically prompted", wrote Nathan Baschez of Notion. The prompt gives you instructions to paste into each AI so it checks Notion first.

Muse is Meta's personal AI agent; Bot is Grok Bot. AI apps reach Notion through MCP, a standard way for an AI app to connect to another service.

Most of it isn't new. Memory sync went live on October 19, and skill tools were in Notion's developer docs by mid-September. The launch added one-click links for ChatGPT and Claude.

The same day, Notion's CEO, Ivan Zhao, wrote in "The Next Era of Notion" that "roughly half the pages in Notion are created by agents" and "our MCP volume is up roughly 60x this year". These are Notion's own figures; this page found no outside source for them.

What changes for you

• You repeat yourself less. What Claude saves as a memory, ChatGPT can read too. Old chats don't come along: connecting "doesn't automatically import another client's chat history", Notion says.
• Your AI saves its work in Notion. The pasted instructions say: "Create documents, notes, research, and plans in Notion unless I specify otherwise."
• Your team shares skills, not memories. Memories are private to each person.

Set it up in 3 steps

1. Connect Notion to your AI

In ChatGPT, Notion's link ntn.so/chat opens Notion's plugin page with the setup prompt passed in. In Claude, add Notion's connector from Claude's directory, then open ntn.so/claude for a chat that carries the prompt. Sign in to Notion when asked.

2. Choose a setup and paste the instructions

The AI offers Shared context layer (Recommended) or Basic setup, makes a private guide page in your Notion, and gives you text to paste: in Claude under Settings → Account → "Instructions for Claude", in ChatGPT under Personalization → "Custom instructions".

3. Decide on the rest

With the shared context layer, the AI also saves the memories, recent work, and skills it can already see; Notion's prompt tells it to leave out passwords and chat transcripts. It asks before it writes to a team space or sets up a daily check. Run the prompt once in each AI you connect.

Before you turn it on

• A wrong memory reaches every AI. Look over your memories now and then (Settings → Notion AI → Memory → Saved memories) and correct what's wrong.
• Your AI has your full Notion access. "MCP tools act with your full Notion permissions", says Notion's help. What an AI reads there can go to that AI's company, under its terms.
• The plans are worded loosely. Notion's developer docs say Notion MCP "works on every plan"; its help center ties Memories to Notion AI (Business and Enterprise), and adds that memories another AI saves over Notion MCP still show in your Memories database. Skills were announced for Business and Enterprise. Notion doesn't say which ChatGPT plans can install its plugin, and guests can't connect.

Who it's for

It fits if your work lives in Notion and you use 2 or more AIs, say Claude for writing and ChatGPT for research. With one AI, its own memory may do. A team with freelancers outside the workspace, or one that wants each skill change approved, needs more: guests can't connect, and anyone who can edit a skill page changes it for everyone.

When a contractor uses your company email

Notion's help says people who use one of your organization's email domains "are added as paid members, not guests," whatever your plan's guest limit. Those domains are your allowed email domains, the workspace owner's domain, and your verified domains, so a contractor you gave your company address joins as a paid member. To add someone as a guest, Notion says to use an address outside those domains, such as the contractor's own email, and to choose Skip for now when you invite them. If Notion already added them as a member, remove them first (Settings → People or Members, Remove from workspace; their Private pages are hidden, so move what you need), then invite their own email. A guest still can't connect an AI to your workspace, so your Notion skills don't reach the contractor's ChatGPT or Claude.

AI Skill Pod, made by the team behind Convika, is one way to hand a contractor only your team's AI skills. On its Business plan and during its trial, a contractor joins through a contractor link with any email, and adds AI Skill Pod to Claude, or to ChatGPT Pro, Business or Enterprise. By default, AI Skill Pod's app shows them a skill's name and description, not its text, and when you remove them, their AI stops reaching your skills at once. The full guide below links AI Skill Pod's guide to contractors and Notion's guest rule.

Read the full guide

AI Skill Pod has a longer guide to the same launch: Read the full guide. AI Skill Pod is made by the team behind Convika; neither is affiliated with Notion.

When your AI makes a page for other people

Notion keeps your AI's documents in your workspace. A page for customers, a class, or guests needs a link anyone can open. Convika connects to Claude as a connector too: Customize → Connectors, + Add, Add custom connector, then https://mcp.convika.com and sign in. Claude's Free plan allows 1 custom connector, per Anthropic's connector guide. Ask: "Make a page announcing our open day and give me the preview link." Claude returns a private preview link that works for 1 hour, and the page goes live only when you ask it to publish. Claude Code and Codex connect to the same address.

If your agent gave you an HTML file instead, publish it as a link with the free publish-HTML tool: drop the file and click Get my preview link. Without an account, the link works for 3 minutes with scripts and forms turned off; a free account keeps the page.

Frequently asked questions

Can ChatGPT and Claude share memory?

Through Notion, yes, if your ChatGPT plan can install Notion's plugin: Notion doesn't say which plans can, or whether the plugin saves memories on each. Connect both to the same Notion account and workspace and run Notion's setup prompt in each. Both then use the same Memories database. Old chats aren't copied over.

Is Notion's shared memory free?

Notion doesn't say it in one place. Its developer docs say Notion MCP works on every plan and list memory on all plans. Its help center ties Memories to Notion AI, on Business and Enterprise, and says memories another AI saves over Notion MCP still show in your Memories database. Skills were announced for Business and Enterprise.

Can my teammates see my Notion memories?

No. Memories are private to each person. Teammates share skills and pages instead.

Can a contractor with our company email be a Notion guest?

Not on that address. Notion's help says people who use one of your organization's email domains "are added as paid members, not guests." Invite their own email address instead and choose Skip for now; if they are already a member, remove them from the workspace first. As a guest, they still can't connect their AI to your workspace.

What are Muse and Bot in Notion's post?

Muse is Meta's personal AI agent, introduced on September 8, 2026. Bot is Grok Bot, a team of AI agents that share a computer in the cloud.

Sources

• Notion on X: the launch thread (read November 5, 2026)
• Notion: Set up Notion for your agent (the setup prompt, version 0.0.6; read November 5, 2026)
• Notion developers: tools, skills, and agents (memory over MCP; read November 5, 2026)
• Notion developers: Get started with Notion MCP (plans and members; read November 5, 2026)
• Notion Help: Notion MCP (permissions; read November 5, 2026)
• Notion Help: View your Notion Agent memories (read November 5, 2026)
• Notion Help: Create and manage skills (read November 5, 2026)
• Notion Help: Manage members, admins & guests (guests and email domains; read November 5, 2026)
• Notion release notes, March 20, 2026 (skills on Business and Enterprise; read November 5, 2026)
• Notion release notes, October 19, 2026 (memory sync live; read November 5, 2026)
• Claude's directory: Notion (Notion's connector for Claude; read November 5, 2026)
• Ivan Zhao: The Next Era of Notion (read November 5, 2026)
• Nathan Baschez on X (read November 5, 2026)
• Meta: Introducing Muse (read November 5, 2026)