Does Gemini remember past conversations? Yes, if Memory is on (2026)

Updated: November 7, 2026

Yes, Gemini can remember past conversations when Memory is turned on. Google documents the feature for people who are 18 or older, signed in with a personal Google Account and using the Keep Activity setting. With those three conditions met, Gemini can draw on earlier chats to personalize a new text conversation, and a user can also ask it directly to look back at a past chat by topic or timeframe. Work, school and supervised accounts do not get past-chat Memory, and the feature does not run inside Gems or Gemini Live conversations.

Memory is one of several things people describe as Gemini "remembering". Google separates the memory of past chats from saved instructions, from the Memory summary that US subscribers can edit, from the chat history stored in Gemini Apps Activity and from the context window that holds the current conversation. The table below sets out each one, and the sections after it cover the settings, the 72-hour retention rule for Temporary Chat, the defaults for work accounts and a troubleshooting table for the cases where Gemini does not recall something.

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GEMINI MEMORY AND PAST CHATS AT A GLANCE.

Each of these features lives in a different part of the Gemini settings, and each answers a different version of the question. Turning one of them off does not switch off the others, so a problem with recall usually comes from one specific layer.

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Feature	What Gemini keeps	Who gets it	Where to control it
Memory of past chats	Context from earlier text chats used to personalize answers	18+, personal account, Keep Activity on	Settings & help > Personal Intelligence > Memory
Instructions for Gemini	Preferences you write that apply to every chat	All users	Personal Intelligence > Instructions for Gemini
Remembering specific details	Facts you ask Gemini to remember in a chat	US, 18+, Google AI plan	Correct or remove the detail in a chat
Memory summary	An editable summary of what Gemini understands about you	US, Google AI plan, English only	Personal Intelligence > Memory summary
Chat history	Your past conversations as a list	Keep Activity on	Settings & help > Activity
Context window	The text of the current conversation	Every plan, sized by plan	Start a new chat when it fills up

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The context window is the only layer that works without any setting. It decides how much of a single long conversation Gemini can still read, and it has nothing to do with whether a chat from last week is available for personalization.

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WHO CAN USE GEMINI MEMORY OF PAST CHATS.

Google's help page for the feature, "Get personalization with memory of your past Gemini chats", lists three requirements. The user must be 18 or over, must be signed in with a personal Google Account, and must have Keep Activity turned on. Google states that the feature is not available when signed in to a work, school or supervised Google Account, and that it stops working if Keep Activity is off.

The same page lists four places where Memory works: the Gemini mobile app, the Gemini web app at gemini.google.com, Gemini in Chrome in the countries where that product is offered, and Gemini on a smartwatch. Memory is not available inside Gems or in Gemini Live chats. Google adds one exception for Live: in an ordinary text chat, a user can ask Gemini to reference a past Gemini Live conversation.

The help page does not publish a list of eligible countries, languages or subscription plans for past-chat Memory, and an older Google help page on saved info says that referencing past chats is still rolling out gradually in the mobile app. A user who meets the three requirements and still sees no Memory switch may simply not have received the feature yet.

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GEMINI MEMORY SUMMARY, SAVED DETAILS AND INSTRUCTIONS.

Google offers three ways to tell Gemini what to keep, with different eligibility for each. Instructions for Gemini are open to all users: they are written preferences, such as tone or format, that apply to every chat. They are added under Settings & help, then Personal Intelligence, then Instructions for Gemini, where each instruction can also be edited, deleted or switched off as a group with the toggle at the top. Google warns that Gemini may not reliably stop mentioning a topic that came from an instruction, and recommends deleting the related chats in Gemini Apps Activity in that case.

Remembering specific details is narrower. Google's page "Manage what Gemini remembers about you" says that this capability is currently limited to the US and requires a Google AI plan, a personal account, an age over 18 and Memory turned on. Users ask in plain language ("Remember that I am vegetarian") and correct a stored detail in the same way ("Actually, my daughter is 8, not 7").

The Memory summary gives a single view of what Gemini understands about the user. Google lists the same personal-account, 18+, Keep Activity and Memory requirements, and states that the summary is currently available to US users with an active Google AI plan, in English only, in the Gemini mobile app and the web app. It opens from Settings, then Personal Intelligence, then Memory summary, or by asking Gemini "What do you know about me?". The summary is edited through prompts such as "Remove my old phone number from your memory", and a Memory history view at the top right lists when each piece of information was added or modified.

Google's help pages use two names for the same settings area. The current pages say Personal Intelligence, while an older page on saved info still refers to Personal context and the address gemini.google.com/saved-info. When a remembered detail is used in a response, Gemini can show a "Your saved info" label under Sources and related content, and Google notes that this label can occasionally be wrong.

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HOW TO TURN GEMINI MEMORY ON OR OFF AND CHECK WHAT IT USED.

On a computer, Memory is controlled at gemini.google.com by clicking Settings & help at the bottom of the page, choosing Personal Intelligence and switching Memory off or on. In the mobile app the path starts from the menu on the left, then Settings, then Personal Intelligence. According to Google's Memory summary page, turning Memory off stops Gemini from learning about the user.

To find out whether a specific answer drew on earlier conversations, Google suggests asking Gemini "Did you use any info from past chats?". Responses that rely on previous chats can list them under Sources and related content.

Removing information takes more steps. Google's instruction is to delete every chat that contains it from Gemini Apps Activity, and the company notes that Gemini may take a short time to stop using a deleted chat for personalization. Information that came from a connected Google app needs two actions: deleting the chats that contain it and disconnecting the app in Connected Apps. Google states that one step alone is not enough, because disconnecting leaves the information in past chats and deleting chats leaves it reachable through the app. A change made inside the connected app, such as deleting a Gmail message, may take days to reach Gemini.

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GEMINI TEMPORARY CHAT AND THE 72-HOUR RETENTION RULE.

Temporary Chat is the setting for conversations a user does not want Gemini to remember. On the web it sits next to New chat. Google says a temporary chat does not appear in Gemini Apps Activity or in recent chats, and that once the user leaves it, the chat can no longer be opened.

The help page lists what a temporary chat cannot do: it gives no personalized responses, saves nothing for future personalization, cannot use Gems or Connected Apps that depend on Keep Activity, and does not accept feedback on responses. Temporary Chat is not offered on work or school accounts, in Gemini in Chrome or in Gemini in Google Messages.

Google's Gemini Apps Privacy Hub states that temporary chats, and chats held while Keep Activity is off, are retained with the account for 72 hours. Google's announcement of the feature on August 13, 2025 said that temporary chats are not used to personalize Gemini or to train Google's AI models. A temporary chat is therefore stored briefly by Google even though the user can no longer see it and Gemini will not use it for Memory.

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HOW LONG GEMINI KEEPS YOUR CHAT HISTORY.

Keep Activity is on by default for users 18 and over, and it is the setting that Memory depends on. Google's activity help page sets the default auto-delete period at 18 months, with options of 3, 18 or 36 months or no automatic deletion. Activity can be deleted for the last hour, the last day, all time, a custom range, a single day or a single conversation, from Settings & help, then Activity, or from myactivity.google.com/product/gemini.

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Situation	How long Google keeps the chat	Visible in your history	Used by Memory
Keep Activity on, default	18 months, then auto-deleted	Yes	Yes, if Memory is on
Keep Activity on, custom	3 or 36 months, or no auto-delete	Yes	Yes, if Memory is on
Keep Activity off	Up to 72 hours	No	No
Temporary Chat	Up to 72 hours	No	No
Chat reviewed by human reviewers	Up to 3 years, disconnected from the account	No	No

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The last row comes from the Privacy Hub, which says that conversations already reviewed by human reviewers are kept for up to three years even after the user deletes the activity. Turning Keep Activity off also removes most Connected Apps: Google lists Device assistance, Gemini Notebook, Messages, Phone and WhatsApp as the only connected apps that keep working in that state.

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GEMINI MEMORY ON WORK AND SCHOOL ACCOUNTS.

A Google Workspace account follows different rules. Google's page on using Gemini Apps with a work or school account says that Keep Activity is on by default and can be turned off only by the Workspace administrator, and that conversation history is saved for 18 months by default. The administrator can change auto-delete to 3, 18 or 36 months or turn history off, and when the administrator sets retention, the user cannot change the activity settings or see the retention period.

Past-chat Memory and Temporary Chat are both listed by Google as unavailable on work and school accounts, so a Workspace user who sees earlier conversations in the sidebar is looking at stored history, without the cross-chat personalization that personal accounts get. Gemini inside Docs, Gmail and the other Workspace apps keeps its own conversation history, which administrators manage under Generative AI, then Gemini for Workspace, then Conversation history & deletion, with auto-delete options of 90, 540 or 1,080 days after the last interaction or no automatic deletion.

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GEMINI CONTEXT WINDOW BY PLAN AND LONG-CHAT FORGETTING.

When Gemini loses track of something said earlier in the same conversation, the cause is the context window. Google's page "Gemini Apps limits & upgrades for Google AI subscribers" publishes a context window for each plan.

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Gemini app plan	Context window
Without a Google AI plan	32k tokens
Google AI Plus	128k tokens
Google AI Pro	1 million tokens
Google AI Ultra	1 million tokens

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At 3.2% of the Pro and Ultra window (32k against 1 million tokens), a free account fills its context much sooner, and long documents or very long threads hit the limit far earlier without a subscription. Memory does not enlarge this window. Our guides to the Gemini context window and token limits and to Google AI Pro and its 1M-token context cover the plan differences in more detail.

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WHY GEMINI DOES NOT REMEMBER: A TROUBLESHOOTING TABLE.

Most recall problems map to one of the layers described above. The table pairs the symptom with the setting that Google's help pages connect to it.

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Symptom	Likely cause	What to check
No recall of any earlier chat	Memory off or not yet rolled out	Personal Intelligence > Memory
Memory switch missing	Under 18, work/school/supervised account, or Keep Activity off	Account type and Settings & help > Activity
Recall fails inside a Gem or Live	Memory is not available there	Ask in a normal text chat
A deleted fact still appears	Short delay, or the fact sits in a connected app	Delete all related chats and disconnect the app
Old conversations are missing	Auto-delete period passed	Activity auto-delete setting
A chat vanished after closing	It was a Temporary Chat	Use New chat for chats to keep
Details lost in one long thread	Context window full	Start a new chat or use a larger plan

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When none of these applies, Google suggests asking Gemini whether it used information from past chats, which shows whether Memory was active for that response.

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IMPORTING CHATGPT AND CLAUDE MEMORIES INTO GEMINI.

Gemini can also take memories and chat history from other assistants. Google's help page on importing from other AI platforms says that a user can paste a prompt provided by Gemini into another assistant, copy the reply that lists the stored memories and add it under Settings & help, then Import memory to Gemini. Full chat histories are uploaded as .zip files of up to 5 GB, with a limit of 5 files per day, and processing can take up to a day.

The import requires a personal account and an age of 18 or over, and it is not available in the EEA, Switzerland or the UK. Google states that imported chats are saved to Activity and used to improve its services, including the training of generative AI models. Readers comparing assistants can find the equivalent rules for OpenAI's chatbot in our guide to whether ChatGPT remembers past chats.

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GEMINI MEMORY IN 2026: WHAT IS DOCUMENTED AND WHAT IS NOT.

Google's help pages establish the core rules clearly. Past-chat Memory requires a personal account, an age of 18 or over and Keep Activity, works in the web and mobile apps, Chrome and smartwatches, and stays out of Gems, Live chats, Temporary Chat and work or school accounts. Chat history is kept for 18 months by default, chats without Keep Activity and temporary chats are held for 72 hours, and the context window ranges from 32k tokens without a plan to 1 million tokens on Pro and Ultra.

Several points remain undocumented. Google does not publish the countries or languages where past-chat Memory is live, its help pages use both Personal Intelligence and Personal context for the same controls, and the Memory summary and stored personal details are documented only for US subscribers to a Google AI plan. Google also gives no figure for how long a deleted chat keeps influencing answers beyond "a short time". For users who want Gemini to forget a conversation reliably, the documented route is to delete it from Gemini Apps Activity or to hold it in a Temporary Chat from the start.

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