Best AI tools to search for academic papers
| Tool | What it does | Pricing | Free tier | Refunds |
|---|---|---|---|---|
| scite | AI-powered platform that helps researchers discover and evaluate scientific literature through Smart Citations. | From $20/mo | No | None stated |
| Semantic Scholar | A free, AI-powered research tool for scientific literature. | Free tier | Yes | — |
| Consensus | An AI-powered search engine for scientific research that helps users find, understand, and synthesize scientific knowledge. | Free tier; paid from $12/mo | Yes | — |
| Vicena | AI research assistant that automates literature review, patent search, protocol building, and physics-grounded experimental simulation. | Free tier | Yes | — |
| Thesify | AI-powered academic writing assistant providing real-time feedback, citation assistance, and topic suggestions for students and researchers. | Not stated on site | No | — |
— means the vendor does not state it on the pages we read.
scite
Visit scitescite.aiCancellation & refund terms for scite

AI-powered platform that helps researchers discover and evaluate scientific literature through Smart Citations.
Scite Search lets you match on citation statements extracted from the full text — surfacing relevant findings, methods, and claims
— scite.ai
Pricing, in their words: “Basic For individual researchers $20 / monthly” (pricing)
Subscription terms they state: cancel in-app · auto-renews · states no refunds (source)
Limits the vendor states:
- commercial use of classifier results
Semantic Scholar
Visit Semantic Scholarsemanticscholar.orgA free, AI-powered research tool for scientific literature.
Search over 214 million papers from all fields of science
Pricing, in their words: “Semantic Scholar is a free, AI-powered research tool for scientific literature”
No usage limits stated on the pages we read.
Consensus
Visit Consensusconsensus.appAn AI-powered search engine for scientific research that helps users find, understand, and synthesize scientific knowledge.
Consensus helps me gather real, peer-reviewed sources.
Pricing, in their words: “$12/mo $144 annually” (pricing)
No usage limits stated on the pages we read.
Vicena
Visit Vicenavicena.ai
AI research assistant that automates literature review, patent search, protocol building, and physics-grounded experimental simulation.
Search PubMed, arXiv, and Google Scholar in plain language.
Pricing, in their words: “All Major AI models in one scientific subscription.” (pricing)
Limits the vendor states:
- Direct Workspace-to-Computer file transfer
Thesify
Visit Thesifythesify.ai
AI-powered academic writing assistant providing real-time feedback, citation assistance, and topic suggestions for students and researchers.
Source: thesify.ai
Pricing, in their words: “Reviewer Pre-submission feedback €6.25 /month Billed €75/year” (pricing)
Subscription terms they state: cancel in-app · auto-renews (source)
Limits the vendor states:
- cannot write papers for users
FAQ
Is there a free tool to search for academic papers?
Yes — Semantic Scholar, Consensus, Vicena offer a free tier.
What is the cheapest paid option to search for academic papers?
Consensus starts at $12/month.
Which of these have an API?
scite, Semantic Scholar document a developer API.
How do I cancel these subscriptions?
scite: cancel in-app; Thesify: cancel in-app. Semantic Scholar, Consensus, Vicena do not state a cancellation route on the pages we read.
Can I get a refund?
scite states it does not offer refunds. The others (Semantic Scholar, Consensus, Vicena, Thesify) do not state a refund policy on the pages we read.
Do these subscriptions auto-renew?
scite, Thesify state that paid plans renew automatically. Check the billing page before subscribing; the rest do not state it either way.
Sources
Every fact above was read from the vendors' own pages: