kitio.aialphaXiv vs SummarizePaper
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. alphaXiv is completely free, while SummarizePaper is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Line-level discussions
- AI paper chat
- Paper summaries
- Trending papers feed
- Author responses
- AI paper summaries
- Chat with papers
- Daily digest
- Citation alerts
- Bibliography check
- Zotero and Obsidian integrations
| Feature | alphaXiv | SummarizePaper |
|---|---|---|
| Best for | Discuss arXiv papers and chat with them using AI | AI summaries, chat and digests for scientific papers |
| Category | Research & search | Research & search |
| Pricing model | Free | Freemium |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | Yes |
| Made by | alphaXiv | SummarizePaper |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
alphaXiv is completely free, while SummarizePaper is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Free
Free
- AI summaries
- Chat with papers
- Daily digest
- Daily limits apply
Premium
€7/mo
- Citation alerts
- Bibliography check
- Scoop watch
- Zotero and Notion links
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
alphaXiv
- Free for researchers
- Active discussion community
- Easy switch from arXiv
- Limited to arXiv papers
- Discussion depth varies
SummarizePaper
- Free summaries and digest
- Understands DOI and arXiv IDs
- Reference checking before submission
- Daily limits on the free tier
- Best tools need Premium
- Premium priced in euros
Which one should you choose?
Choose alphaXiv if you want:
- Free for researchers
- Active discussion community
- Easy switch from arXiv
Watch out: limited to arxiv papers.
Choose SummarizePaper if you want:
- Free summaries and digest
- Understands DOI and arXiv IDs
- Reference checking before submission
Watch out: daily limits on the free tier.
alphaXiv vs SummarizePaper FAQ
What is the difference between alphaXiv and SummarizePaper?
alphaXiv: Discuss arXiv papers and chat with them using AI. SummarizePaper: AI summaries, chat and digests for scientific papers. Both are research & search tools.
Is alphaXiv or SummarizePaper cheaper?
alphaXiv is completely free, while SummarizePaper is freemium.
Do alphaXiv and SummarizePaper have free plans?
alphaXiv: Yes, fully free. SummarizePaper: Yes.
Who makes alphaXiv?
alphaXiv is made by alphaXiv, based in United States.
Who makes SummarizePaper?
SummarizePaper is made by SummarizePaper.
Which should I choose, alphaXiv or SummarizePaper?
Choose alphaXiv if you value free for researchers and active discussion community. Choose SummarizePaper if you value free summaries and digest and understands doi and arxiv ids.