Gemini gets past-chat memory and temporary chats

Every time you start a fresh chat with an AI assistant, it feels like meeting a stranger. You have to re-explain your workflow, your taste, and your quirky preferences all over again.

Google wants to change that. On August 13, the company rolled out an update to the Gemini app that allows it to remember details from your past chats to deliver tailored answers. To balance things out, Google also shipped a new privacy tool called Temporary Chat.

Smarter memory across your chats

The headline update is long-term personal context. Gemini can now reference past interactions over time to pick up your habits, preferences, and interests.

For instance, if you previously talked about character arcs in your favorite comic, asking for a unique birthday party theme might prompt Gemini to suggest a full celebration around that comic. If you frequently research Japanese culture for a video project, asking for new ideas will automatically yield concepts aligned with traditional crafts or regional food.

The feature is rolling out first to users on the Gemini 2.5 Pro model in select countries, with plans to expand to 2.5 Flash and other regions soon.

Crucially, this setting is turned on by default. If you prefer to keep every conversation isolated, you have to manually disable it under Personal Context settings in the app.

An incognito mode for AI

Of course, there are plenty of times when you do not want an AI remembering what you just asked. Maybe you are researching sensitive personal questions or brainstorming an odd topic outside your usual lane.

That is where Temporary Chat comes in. Chats started in this mode will not show up in your recent history or activity log.

Google says Temporary Chats will not be used to personalize future Gemini answers or train its AI models. However, they are not deleted instantaneously: Google retains them for up to 72 hours strictly to process responses and handle user feedback.

Google is also revamping its broader data controls. The existing activity setting will soon be renamed Keep Activity, which dictates whether samples of uploaded files and photos are used to improve Google products. Meanwhile, controls for audio, video, and screen sharing via Gemini Live remain turned off by default.

Why it matters

Google is racing to turn Gemini from an on-demand search replacement into a genuine digital companion that actually knows you.

For power users, having an assistant that retains context across separate sessions removes immense friction. You no longer need giant system prompts just to remind the model of your background or writing style. It makes daily use significantly faster.

We think launching memory and Temporary Chat side-by-side was a necessary defensive move against OpenAI. ChatGPT has offered memory and temporary chats for months, and Google could not afford to lag behind in personal context.

However, making personalization opt-out rather than opt-in shows Google's aggressive push to build stickiness. While it ensures immediate delight for casual users, it also places the burden on privacy-conscious individuals to hunt down the off switch.