how to delete what AI chatbots remember about you, Digi Mart USA News: ChatGPT, Gemini and Claude now all keep memories that help them personalize answers, tracking what users are working on, how they like responses and who matters in their lives. According to a Notebookcheck report published November 13, 2026, that convenience also means the AI may hold details users have forgotten sharing.
The report says all three services have changed how memory works since the summer. Deleting a chat in Claude no longer automatically deletes what Claude learned from it, while ChatGPT has always stored saved memories separately from chat history.
Gemini remains the service where remembered details are still tied to individual chats.
In ChatGPT, memory controls are found under Settings, Personalization and Memory. OpenAI’s help article, as cited in the report, says memory can draw on past chats, saved memories, custom instructions, files and connected apps such as Gmail, depending on plan and region.
Deleting a saved memory requires removing it directly, and the “Don’t mention this again” option only reduces future references without deleting the original source. OpenAI may also keep logs of deleted saved memories for up to 30 days.
In Claude, memory is on by default on the Free, Pro, Max and Ultra plans and is managed under Settings and Your Claude. According to Anthropic’s help article as cited in the report, users can select “Manage” to view and edit individual topics.
The report notes that deleting a conversation does not remove the memory entries generated from it, so those must be deleted separately. “Reset memory” removes all memories, including project memories, and cannot be undone, while “Pause memory” only stops Claude from using and adding to memory.
Gemini’s memory is built from saved chats and requires a personal Google Account, an age of 18 or older, and Keep Activity turned on. Outside the US, the report says, there is no list for deleting individual items, so users must delete every chat containing the information in Gemini Apps Activity, with a possible short delay before Gemini stops using it.
The report adds that connected apps such as Gmail require both deleting the relevant chats and disconnecting the app.
For one-off questions, the report recommends temporary chat in ChatGPT, incognito chat or turning off Memory before sending a message in Claude, and temporary chat in Gemini. The report also notes that turning off memory does not stop chats from being used to improve AI models, which is a separate setting.
