Does Perplexity Have Memory? How Perplexity's Memory Works in 2026
Yes, Perplexity has memory. What it saves, how to manage or delete it, what Brain adds for Max users, and how to make your context portable.
Short answer: yes. Perplexity has a memory feature, and since mid-2026 it also has something called Brain, which is a different thing entirely. This guide covers what each one actually remembers, where the controls live, and what to do when you need your context to survive beyond Perplexity itself.
What Perplexity's memory saves
Perplexity's memory stores preferences, interests, and details from your past conversations, then uses them to shape future answers. Ask it for gluten-free recipes a few times and it will quietly file that away; the next food question assumes it. Repetition is the main signal. Something you mention once, in passing, usually does not stick.
That design is sensible for a search product. It also means you cannot rely on it as a system of record. There is no guarantee that the fact you care about was saved, and no prompt you can write that forces it to persist.
Managing what it remembers
The controls live under Settings, then Personalize, then Manage Memories. From there you can:
- Read every memory Perplexity has saved about you
- Delete individual memories, or clear all of them at once
- Turn memory off entirely, which stops new memories from forming but keeps existing ones until you delete them
Incognito mode skips memory for that session: nothing is logged, nothing is saved. It is the right mode for one-off research you do not want coloring future answers.
Perplexity Brain is a different thing
In June 2026 Perplexity launched Brain, a self-improving memory system for its Computer platform, in research preview for Max and Enterprise Max subscribers. Brain remembers the work rather than the user: it builds a context graph of tasks the agent performs and reviews it at intervals to get better at those tasks.
It is a genuinely interesting design, but it is not the personal memory most people are asking about when they search for this, and it sits behind a $200 per month tier. Your preferences, your projects, and your history across conversations are still handled by the ordinary memory feature above.
Where Perplexity's memory stops
Three limits matter in practice:
- You do not control what gets saved. Perplexity decides, based mostly on repetition. Important one-time facts (a diagnosis, a decision, a constraint on a project) may never make it in.
- It stays in Perplexity. The context you build there does not exist in ChatGPT, Claude, Gemini, or your coding tools. Every other AI you use starts from zero.
- Past conversations are not really searchable as knowledge. Your library keeps threads, but there is no reliable way to ask "what did we conclude about X last month" and get a grounded answer.
How to make your context persistent and portable
If Perplexity is one of several AI tools you use, the durable fix is to keep your memory outside any single one of them. MemoryPlugin adds a long-term memory layer to Perplexity through a browser extension: you decide what gets saved, memories are organized into buckets you can read and edit, and the same memory loads into ChatGPT, Claude, Gemini, and 21+ other tools. Tell Perplexity something once and your next conversation anywhere else already knows it.
| Perplexity memory | Perplexity + MemoryPlugin | |
|---|---|---|
| What gets saved | Perplexity decides, repetition-based | You decide, saved on request |
| Works in other AI tools | No | Yes, one memory across 21+ tools |
| Organization | Flat list of memories | Topical buckets you control |
| Chat history recall | Library of threads | Searchable history across your AI tools |
Common questions
Does Perplexity remember past conversations? Partially. It saves selected preferences and details, mostly things you repeat, and uses them in future answers. It does not reliably retain everything from past threads.
How do I see or delete what Perplexity remembers? Settings, Personalize, Manage Memories. Delete entries individually or clear all of them; turning memory off stops new saves.
Is Perplexity Brain the same as memory? No. Brain is a work-context system for the Computer platform on Max plans. The memory feature that personalizes your answers is separate and available more broadly.
Want your context to follow you across every AI you use? Start a free 7-day trial of MemoryPlugin.
