kitio.aialphaXiv vs ChatPaper
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. alphaXiv is completely free, while ChatPaper 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
- Daily arXiv paper feed
- AI paper summaries
- Chat across many files
- Cited answers
- Conference venue browsing
- Collections
| Feature | alphaXiv | ChatPaper |
|---|---|---|
| Best for | Discuss arXiv papers and chat with them using AI | Daily arXiv feeds with AI summaries and chat over your 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 | ChatPaper |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
alphaXiv is completely free, while ChatPaper is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
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
ChatPaper
- Keeps up with new arXiv uploads daily
- Works across many papers at once
- Answers cite their sources
- Pricing not stated on the site
- Feed focuses on arXiv fields
- Summaries still need checking
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 ChatPaper if you want:
- Keeps up with new arXiv uploads daily
- Works across many papers at once
- Answers cite their sources
Watch out: pricing not stated on the site.
alphaXiv vs ChatPaper FAQ
What is the difference between alphaXiv and ChatPaper?
alphaXiv: Discuss arXiv papers and chat with them using AI. ChatPaper: Daily arXiv feeds with AI summaries and chat over your papers. Both are research & search tools.
Is alphaXiv or ChatPaper cheaper?
alphaXiv is completely free, while ChatPaper is freemium.
Do alphaXiv and ChatPaper have free plans?
alphaXiv: Yes, fully free. ChatPaper: Yes.
Who makes alphaXiv?
alphaXiv is made by alphaXiv, based in United States.
Who makes ChatPaper?
ChatPaper is made by ChatPaper.
Which should I choose, alphaXiv or ChatPaper?
Choose alphaXiv if you value free for researchers and active discussion community. Choose ChatPaper if you value keeps up with new arxiv uploads daily and works across many papers at once.