alphaXiv vs SummarizePaper: which to use for arXiv papers (2026)
Key takeaways
- alphaXiv is a place to read and discuss arXiv papers: a feed of trending papers, comments under each paper, an AI overview and AI tools on top.
- SummarizePaper is a summary you can read in two minutes: a detailed summary, key points, a lay summary, related papers and the BibTeX entry on one public page, in English or French, plus a daily email digest.
- Use alphaXiv to see what the community says about a paper. Use SummarizePaper to decide quickly whether to read it, or to understand it outside your field.
- Both work from the arXiv ID, so nothing stops you from using both on the same paper.
Disclosure: this comparison is written by the creator of SummarizePaper. alphaXiv features were checked on its site on 18 October 2026.
alphaXiv vs SummarizePaper at a glance
| alphaXiv | SummarizePaper | |
|---|---|---|
| Main idea | Discussion and AI layer on top of arXiv | Written AI summary page for each arXiv paper |
| How to open a paper | Replace arxiv with alphaxiv in the URL |
arXiv ID or search on the home page |
| What you get on a paper | Abstract, AI overview, comments, audio | Detailed summary, key points, lay summary, blog-style article, related papers, BibTeX, PDF export |
| Ask questions about a paper | Yes | Yes, from the full text, on one or several papers |
| Languages | Several languages for AI overviews | English and French |
| Following new papers | Trending feed, researchers to follow | Daily email digest by arXiv category |
| Community | Comments and discussion | None |
| Price | No pricing listed | Free; Premium €7/month |
What alphaXiv does better
- Discussion. Each paper has a discussion space, so you can see questions and remarks from other readers. SummarizePaper has nothing comparable.
- Discovery. The home page ranks trending papers with a one-sentence takeaway each, and lets you follow researchers. When we checked in October 2026, the trending papers were mostly machine learning.
- Tooling for developers. alphaXiv offers a browser extension and an MCP server to plug papers into AI assistants.
What SummarizePaper does better
- A complete summary on one page. The detailed summary, key points and a lay summary anyone can understand are written in advance, so the page loads ready to read. See an example.
- Reading outside your field. The lay summary and blog-style article explain the paper without jargon.
- French. Every summary exists in English or French.
- A digest that comes to you. The daily digest emails up to 10 new papers every weekday from up to 5 arXiv categories you choose, with optional keywords, each with a two-sentence summary.
- Citing and exporting. Each page gives the BibTeX entry and a PDF of the summary.
When to use which
| If you want to… | Use |
|---|---|
| Know in two minutes whether a paper is worth reading | SummarizePaper |
| Understand a paper outside your field | SummarizePaper (lay summary) |
| See what other researchers think of a paper | alphaXiv |
| Browse what is trending in machine learning this week | alphaXiv |
| Get new papers in your categories by email every morning | SummarizePaper |
| Read a summary in French | SummarizePaper |
Who SummarizePaper is not for
If what you value is the conversation around a paper, or a social feed of trending work, alphaXiv is the better home. SummarizePaper has no comments and no social features: it is built for reading and understanding papers fast.
For a wider comparison, including NotebookLM, Elicit and SciSpace, see Best AI tools to summarize arXiv papers. If you are leaving Scholarcy, see Scholarcy alternatives.
FAQ
Is alphaXiv free?
alphaXiv asks you to sign up and shows no pricing page or paid plan on its site (checked October 2026).
Is SummarizePaper free?
Yes. Reading existing summaries is unlimited and needs no account. Free users can start 10 new summaries a day; Premium costs €7 per month for the most capable model and no summary limit.
Can I open the same paper in both?
Yes. Both work from the arXiv ID. On SummarizePaper, go to summarizepaper.com/en/arxiv-id/ followed by the ID. On alphaXiv, replace arxiv with alphaxiv in the paper's URL.
Which one gives a summary in French?
SummarizePaper writes every summary in English or French, including the lay summary. alphaXiv also offers AI overviews in several languages.
Which one helps me follow new papers in my field?
alphaXiv has a feed of trending papers and researchers to follow. SummarizePaper sends a free daily email digest with new papers from the arXiv categories you choose, each with a two-sentence summary.