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Stacks vs Claude Projects
Claude Projects give Claude a fixed set of files and instructions for one piece of work. Stacks gives Claude everything you’ve saved across the web, X and LinkedIn, searchable from any chat. Use a Project for a focused job with known documents; use Stacks when the material is spread across months of reading.
Side by side
| Stacks | Claude Projects | |
|---|---|---|
| What it holds | Everything you saved: pages, posts, notes, highlights, AI answers | Files and text you upload to that project |
| How things get in | Saved as you browse, or imported from bookmarks, X, LinkedIn and Instagram | You upload or paste them |
| Available in | Any Claude chat, Claude Code, ChatGPT and Stacks | Chats inside that project, in Claude |
| Custom instructions per job | ||
| Finds the relevant few among thousands | Works best with a set you chose | |
| Links answers back to the source | Cites the project files |
Where Claude Projects are better
- A focused job with a known set of documents: a contract review, a codebase, a report you’re writing.
- Instructions that apply to every chat in the project, like tone or format.
- Sharing a project with your team on Claude’s team plans.
- Nothing to install: it’s part of Claude.
Where Stacks is better
- Material you collected over months, before you knew you’d need it.
- No uploading: what you save while browsing is already there.
- Every chat, not just one project, plus ChatGPT if you use both.
- Social saves (X bookmarks, LinkedIn saved posts, Instagram saves) that you can’t easily upload as files.
Use both
Start a Project for the job, and ask Claude to pull what you need from Stacks into it: “find what I saved about competitor pricing and summarise it for this project.” Setup is on the Claude page.
Questions
Can I use Stacks inside a Claude Project?
Yes. Once Stacks is added as a connector in Claude, Claude can search your saves in any chat, including chats inside a project.
Do I have to upload my bookmarks to Claude?
No. Save or import them into Stacks and connect Stacks to Claude. Claude searches them when a question needs them.
Which is better for research?
For a fixed set of papers you’re studying now, a Project. For everything you’ve read and saved over time, Stacks. Many people use a Project for the current piece of work and Stacks to feed it.
Is Stacks free?
Yes. The free plan includes 20 asks a month across Stacks, Claude and ChatGPT. Be Productive ($36 a year) adds unlimited asks and search by meaning.
Related
Use your saves in Claude
Add Stacks as a connector and ask Claude about anything you saved.
Stacks vs ChatGPT memory
What each one remembers, and why most people use both.
Stacks vs NotebookLM
A notebook of sources or your whole library inside your AI.
X bookmarks into Claude and ChatGPT
Import your X bookmarks in one go and ask about 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.