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Paperlayer
What Paperlayer is
Paperlayer is a web-based AI reading layer for research papers, presenting summaries and margin notes linked to evidence in the original PDF. Readers can find papers by title or author, enter an arXiv ID, or paste an arXiv link. Summaries address a paper’s problem, method, results, and caveats, while highlights mark claims, methods, results, problems, and caveats; readers can adjust highlight density. Margin notes explain terms, equations, and figures in context. Summaries and notes are available in Korean, Japanese, Chinese, Spanish, French, and German, and J and K keys navigate through a paper. Paper chat is labeled “Soon.” The current public demo covers public arXiv papers and does not accept private or unpublished uploads. It is offered without purchase or a paid subscription. For live AI processing, Paperlayer says public paper and request content are sent to OpenAI over an encrypted connection without intentionally including account, cookie, or anonymous identifiers. The maker cautions that AI output and evidence links may be inaccurate, and advises checking important content in the original paper.
Who it suits
It suits readers working through public arXiv papers who want contextual summaries, evidence-linked highlights, and margin notes. It is not intended for private or unpublished document uploads in its current demo.
What it does well
- Search by title, author, arXiv ID, or link.
- Summaries address methods, results, and caveats.
- Highlight density can be adjusted.
- Notes and summaries support six listed languages.
- Public demo is offered without purchase or subscription.
What to know first
- Private and unpublished uploads are not accepted.
- Paper chat is labeled “Soon.”
- AI output and evidence links may be inaccurate.
- File upload is not supported.
Limits
The free Public demo covers public arXiv papers and does not accept private or unpublished document uploads. It is offered without purchase or a paid subscription.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Public demo | Public arXiv papers · No private or unpublished document uploads · No purchase or paid subscription | Free |
As paperlayer.ai lists them, read 9 Oct 2026. The maker's own page has the final word.
Getting started
- Open the Paperlayer website in a web browser.
- Search by paper title or author, enter an arXiv ID, or paste an arXiv link.
- Read the paper with summaries, highlights, and contextual notes.
- Optionally sign in with Google to sync saved papers and reading preferences across devices.
Verdict
Paperlayer offers a focused reading aid for public arXiv papers, with summaries and contextual notes linked to evidence. Readers should verify important details in the original paper and cannot use the current demo for private documents.
Questions
How much does Paperlayer cost?
The Public demo is listed as free. The terms describe it as a demo with no purchase or paid subscription currently offered.
What papers can I use with Paperlayer?
The current demo covers public arXiv papers. It does not accept private or unpublished document uploads.
Which languages are supported?
Summaries and notes are supported in Korean, Japanese, Chinese, Spanish, French, and German.
Does Paperlayer have paper chat?
Paper chat is labeled “Soon” on the site. The terms say that, if chat is available, it should be used only for questions about public papers.
How does Paperlayer handle AI processing?
For live AI processing, it sends public paper and request content to OpenAI over an encrypted connection, without intentionally including account, cookie, or anonymous identifiers. The maker advises checking important content in the original paper.
Can I sync saved papers across devices?
Google sign-in is optional and can sync saved papers and reading preferences across devices.
Facts from Paperlayer's own pages
- AI caveat
- The maker cautions that AI reading aids can be wrong and instructs users to verify important details in the original paper. · paperlayer.ai, 4 Oct 2026
- AI chat
- The homepage labels paper chat as “Soon”; the terms say that if chat is available, it should be used only for questions about public papers. · paperlayer.ai, 9 Oct 2026
- AI limitations
- Paperlayer says AI output and automatically selected evidence may be inaccurate or incorrectly linked, and advises checking important content in the original paper. · paperlayer.ai, 9 Oct 2026
- AI processing and privacy
- For live AI operations, Paperlayer sends public paper and request content to OpenAI over an encrypted connection and says account, cookie, and anonymous identifiers are not included. · paperlayer.ai, 9 Oct 2026
- Current availability
- The terms describe Paperlayer as a public demo with no purchase, paid subscription, or refundable transaction currently offered. · paperlayer.ai, 4 Oct 2026
- Highlights
- Highlights are grouped into claims, methods, results, problems, and caveats, and readers can adjust their density. · paperlayer.ai, 9 Oct 2026
- Integrations
- Paperlayer fetches verified, version-pinned arXiv PDFs from arXiv; Google sign-in is optional for syncing saved papers and reading preferences across devices. · paperlayer.ai, 9 Oct 2026
- Keyboard access
- The reader supports J and K keyboard navigation through a paper. · paperlayer.ai, 4 Oct 2026
- Limits
- The current demo covers public arXiv papers and does not accept private or unpublished document uploads. · paperlayer.ai, 4 Oct 2026
- Margin notes
- Margin notes define terms, explain equations, and describe figures in context beside the paper. · paperlayer.ai, 9 Oct 2026
- Paper discovery
- Readers can search by paper title or author, or paste an arXiv link to open a paper. · paperlayer.ai, 9 Oct 2026
- Planned feature
- Paper chat is labeled “Soon” on the site. · paperlayer.ai, 4 Oct 2026
- Privacy and processing
- For live AI processing, Paperlayer says it sends public paper content and request content to OpenAI over an encrypted connection, without intentionally including account, cookie, or anonymous identifiers. · paperlayer.ai, 4 Oct 2026
- Purpose
- Paperlayer describes itself as an AI reading layer for research papers, with summaries and margin notes linked to supporting passages in the original PDF. · paperlayer.ai, 9 Oct 2026
- Security
- The privacy policy lists HTTPS transport encryption, secure cookie settings, signed anonymous identifiers with secret rotation, access controls, and request-rate limits as safeguards. · paperlayer.ai, 9 Oct 2026
- Summaries
- Summaries cover a paper’s problem, method, results, takeaways, and limitations, with points linked to supporting evidence. · paperlayer.ai, 9 Oct 2026
- Support
- The terms list [email protected] for contact, including privacy requests and questions. · paperlayer.ai, 9 Oct 2026
- Supported content
- The current demo covers public arXiv papers and does not accept private or unpublished document uploads. · paperlayer.ai, 9 Oct 2026
- Translations
- The reader lists Korean, Japanese, Chinese, Spanish, French, and German as available reading languages. · paperlayer.ai, 9 Oct 2026
Where Paperlayer stands on Freedom251
- Text Summarization Software#14 of 24