Compare
Stacks vs ChatGPT memory
ChatGPT memory remembers short facts about you inside ChatGPT: your role, your preferences, how you like answers. Stacks keeps the material you read and save across the web, X and LinkedIn, and lets ChatGPT and Claude search it. They do different jobs, and most people are best off using both.
Side by side
| Stacks | ChatGPT memory | |
|---|---|---|
| What it holds | Pages, posts, notes, highlights, files and AI answers you saved | Short facts and preferences about you |
| How things get in | You save them: the extension, imports, or “save this” in a chat | ChatGPT decides, or you ask it to remember |
| Works in | ChatGPT, Claude, Claude Code and Stacks itself | ChatGPT only |
| Setup | Extension plus a one-time connector | None, it’s built in |
| Shows its sources | ||
| Full text of what you read | ||
| Runs out of space | No | Yes: when memory is full, you delete entries to add new ones |
| Price | Free (20 asks a month), or $36 a year for unlimited | Included with ChatGPT |
Where ChatGPT memory is better
- It needs no setup and works on its own, in every chat.
- It’s the right place for who you are: your job, your tone, the way you like answers written.
- It can pick things up from your conversations without you saving anything.
Where Stacks is better
- It holds the material itself, not a summary: the whole article, the thread, your notes on it.
- It covers what you read outside ChatGPT: the web, X bookmarks, LinkedIn saved posts, Instagram saves.
- The same saves work in Claude, so switching tools doesn’t mean starting over.
- Answers link back to your saves, so you can check them.
Use both
Let ChatGPT memory keep who you are, and let Stacks keep what you’ve read. Then a question like “draft a post in my usual style, using what I saved about onboarding” gets both: your style from memory, the material from Stacks. Setup is on the ChatGPT page.
Questions
Is Stacks a replacement for ChatGPT memory?
No. ChatGPT memory keeps short facts about you; Stacks keeps the articles, posts and notes you saved. They work side by side in the same chat.
My ChatGPT memory is full. Will Stacks help?
Yes, if you were using memory to hold material like articles, links or notes. Move that into Stacks: it doesn’t use ChatGPT memory, and ChatGPT reads it only when a question needs it.
Does Stacks work with Claude too?
Yes. The same Stacks connector works in Claude, Claude Code and ChatGPT.
Do I need a paid ChatGPT plan?
Connecting a custom MCP server like Stacks needs a paid ChatGPT plan. Stacks itself has a free plan.
Related
Use your saves in ChatGPT
Connect Stacks to ChatGPT, and what to do when its memory is full.
Stacks vs Claude Projects
Uploaded project files or everything you saved, when to use which.
Stacks vs NotebookLM
A notebook of sources or your whole library inside your AI.
Keep AI answers
Save the useful parts of ChatGPT and Claude replies, then reuse them.
Bring your research into ChatGPT and Claude
Add the extension to start saving, then connect your AI and ask about anything you’ve kept.