Reading
Keep outside chats out of a ChatGPT project
Set project-only memory, check the required account settings, and understand the delay, shared-project rules, and ChatGPT Work limitation.
Prices last read 2026-09-22
The direct answer
Open your ChatGPT project and choose ••• → Project settings → Memory → Project-only memory, then Save.Once effective, this prevents project chats from referencing outside conversations or saved memories; OpenAI says changes may take a few hours.Source: Projects in ChatGPT · 2026-09-22
You can change an existing project without recreating it. OpenAI documents this update across all ChatGPT plans. Conversations within the project can still inform each other, while project information stays out of memory used by outside chats.
Source: ChatGPT — Release Notes · 2026-09-22
Documented prerequisites
- If your settings show Enable memory, turn it on.
- With separate controls, Enterprise requires Reference saved memories in personal settings and workspace Memory enabled.
- Other subscriptions require both Reference saved memories and Reference chat history.
- Managed workspaces must allow memory. Business and Enterprise require it enabled for both account and workspace.
Source: Projects in ChatGPT · 2026-09-22
- Select the project’s memory modeOpen the project’s three-dot menu, choose Project settings, and select Project-only memory under Memory.
- Save and allow for the delaySelect Save. The change may take a few hours. Each project needs its own setting; there is no account-wide project-only switch.
Source: Projects in ChatGPT · 2026-09-22
Shared projects automatically use project-only memory and cannot switch to default. ChatGPT Work is unavailable inside project-only projects.
Source: ChatGPT — Release Notes · 2026-09-22
Removing every collaborator does not unlock default memory. Switching memory modes also leaves existing project chats and files in place as usable context.
Source: Projects in ChatGPT · 2026-09-22
Suggested check: separate source material from memory
For a project called Client A, review its chats and files for Client B material you may already have included. If an answer mentions Client B, check that local material before treating the answer as evidence of outside-memory access. Use a harmless sample task for this review, and record the unwanted detail and where you found it.
Suggested stopping point
After allowing the documented delay, reopen the settings and confirm your selection. If the setting persists and your sample task is satisfactory, stop changing settings and resume work. If the option remains unavailable, ask your workspace administrator to review the prerequisites. If unexpected context continues, preserve a concrete example for support instead of repeatedly toggling memory.
You represent and warrant that you have all rights, licenses, and permissions needed to provide Input to our Services.
OpenAI Terms of Use — ContentSource: Terms of Use · 2026-09-22
For users covered by these individual-use terms, project-only memory does not replace permission to upload the material.
Source: Terms of Use · 2026-09-22
Optional shopping: view the ChatGPT seller listing through our affiliate link. This is a seller listing, not official access or an endorsement.. That link carries our partner code Sk52g, which is how a purchase is attributed to this site. Promotion code UPD3S.
Sources read on September 22, 2026