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ChatGPT's memory is good — inside ChatGPT. It remembers you as you chat, and that's worth having. The comparison that matters is what happens the moment you switch tools: your ChatGPT memory doesn't follow you into Codex, your IDE, or anything else. Atlaso is the memory that does.
Built-in memory is a real feature, and it works. We're not here to argue otherwise — an honest comparison starts by saying what a product does well before it says where that stops.
Automatic and explicit
It saves the details you ask it to remember and picks up useful context on its own, then carries both into future chats without you re-stating them.
Across your ChatGPT context
When enabled, it draws on your chats, uploaded files, and connected apps to personalize answers — so inside ChatGPT you repeat yourself less.
You can see and clear it
Saved memories live in Settings › Personalization › Memory, where you can review them and delete them one at a time or all at once.
These aren't criticisms so much as the shape of a built-in feature: it's designed to make one product better, and it does. Each point below is from OpenAI's own documentation.
“…will not include everything that ChatGPT remembers.”
A separate store per tool
OpenAI's own docs say ChatGPT web uses ChatGPT memory, while local Codex clients use a separate local memory store — kept on your machine, off by default. The Atlas browser keeps a third store that OpenAI says is separate and controlled independently.
No memory API
There's no memory API for developers. When users asked OpenAI to unify memory between ChatGPT and Codex, support logged it as feedback and the thread was closed without a native solution.
The summary is partial
In the new system you review memory through a summary page that, in OpenAI's own words, “will not include everything that ChatGPT remembers” — so what you can audit isn't the whole of what it holds.
Deletion is multi-step
“Don't mention this again” suppresses a detail but doesn't delete it; fully removing something means deleting every chat, file, and source it appears in. OpenAI may keep a log of deleted memories for up to 30 days.
On training: unless you turn off “Improve the model for everyone” in Data Controls, OpenAI says it may use your content — including past chats and saved memories — to train its models.
Five dimensions that decide what a memory feature is actually worth once you use more than one AI tool.
| Dimension | ChatGPT memory | Atlaso |
|---|---|---|
| Scope | One product. ChatGPT web, Desktop and Mobile share it; Codex CLI and the Atlas browser each keep a separate store. | Every connected tool. Claude Code, Codex, Cursor, Claude Desktop and more draw on one memory. |
| Visibility | A memory summary that OpenAI says won't include everything ChatGPT remembers. | See and search every memory Atlaso holds; each recall is marked settled or contested. |
| Control | Suppress a detail with “Don't mention this again”; fully removing it means deleting every source it appears in. | Delete any memory on its own, and export everything as JSON. |
| Portability | No developer memory API; your ChatGPT memory doesn't follow you into other tools. | One memory across six AI tools, captured and recalled automatically — with personal and per-project scopes. |
| Training | Unless you turn off “Improve the model for everyone” in Data Controls, OpenAI says it may use your content, including saved memories, to train its models. | Never used to train models. Secrets are scrubbed on your device before anything is stored. |
Atlaso doesn't ask you to turn ChatGPT's memory off. They do different jobs and run side by side: ChatGPT's memory keeps making your ChatGPT conversations better, and Atlaso gives Codex, Claude Code, Cursor and your other tools one shared memory that ChatGPT's memory was never meant to reach.
Competitor details as of July 2026, from official OpenAI documentation.
No. ChatGPT's memory lives inside the ChatGPT product — web, Desktop and Mobile share it, while Codex CLI and the Atlas browser each keep separate stores. It never reaches Cursor or Claude Code. Atlaso is built for exactly that gap: one shared memory across every AI tool you connect.
They do different jobs. Inside ChatGPT, its memory is genuinely good and keeps improving your ChatGPT conversations. Atlaso is one memory across all your tools — Claude Code, Cursor, Codex and more — that you can see, search, delete from, and export as JSON. Most people benefit from both.
Not fully — OpenAI's own Memory FAQ says the memory summary won't include everything ChatGPT remembers. Atlaso takes the opposite stance: the dashboard shows every memory it holds, each one searchable and individually deletable, and every recall is marked settled or contested.
It can. Unless you turn off “Improve the model for everyone” in Data Controls, OpenAI says it may use your content, including saved memories, to train its models. Atlaso never trains on your memory and never sells it, and secrets are scrubbed on your device before storage.
No. Atlaso runs alongside ChatGPT's memory — nothing to disable, no migration. ChatGPT's memory keeps doing its job inside ChatGPT, while Atlaso gives Codex, Claude Code, Cursor, and the rest of your tools the one shared memory that ChatGPT's memory was never meant to reach.
Atlaso captures and recalls automatically, scrubs secrets on your device, and shares one memory across the tools you already use. Free to start — no credit card required.