Connected Papers vs ResearchRabbit
The free plans cap different things. Connected Papers allows 5 graphs a month with all features included, and ResearchRabbit allows up to 50 seed articles with unlimited searches and an unlimited library, though librarian Aaron Tay reported a single project on free accounts in November 2025.
Paid prices come in different currencies. Connected Papers Academic is EUR 4.23 per month billed as EUR 50.81 annually, for academics, non-profits and personal use. ResearchRabbit+ is $10 per month billed annually or $12.50 month to month, with 300 seed articles, advanced search controls and Signals alerts.
A lab built on Zotero gets the weaker deal from ResearchRabbit, since Tay found two-way sync missing in November 2025 and only one secondary source says ResearchRabbit+ restores it. Ownership is unsettled too, with PitchBook reporting a Litmaps acquisition in May 2025 and Tay describing a partnership.
A thesis student on a stipend keeping a rolling library starts on ResearchRabbit's free plan, and Connected Papers Academic suits someone who only needs unlimited graphs.
Research tools · Reviewed November 1, 2026
Connected Papers
by Connected Papers
Builds a visual graph of papers related to one origin paper, arranged by similarity.
ResearchRabbit
by ResearchRabbit
Finds related papers from seed articles and shows them as citation and similarity maps.
When to pick each one
Connected Papers
- Free plan with 5 graphs monthly
- Academic plan EUR 4.23 monthly, billed annually
- Graphs from DOI, arXiv or PubMed links
ResearchRabbit
- Free plan with 50 seed articles
- ResearchRabbit+ at $10 per month, billed annually
- Institution plan adds LibKey and usage statistics
Score
Each row shows points earned of points available under the published rubric.
Connected Papers
52of 100
ResearchRabbit
24of 100
| Dimension | Connected Papers | ResearchRabbit | Difference |
|---|---|---|---|
| Peer-reviewed papers | 8.4 / 21 | 0 / 21 | +8.4 |
| RCT / meta-analysis / systematic review | 6 / 6 | 0 / 6 | +6 |
| Funding & adoption signal | 6 / 12 | 6 / 12 | 0 |
| Pricing transparency | 6.5 / 6.5 | 6.5 / 6.5 | 0 |
| Years in market | 0 / 6 | 0 / 6 | 0 |
Scroll horizontally to see every column.
Pricing
Connected Papers
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Free | n/a | n/a | 5 graphs per month, all features included. |
| Academic | n/a | EUR 50.81 | Unlimited graphs, for academics, non-profits and personal use. |
| Business | n/a | EUR 169.38 | Unlimited graphs. |
ResearchRabbit
| Tier | Monthly | Annual | Notes |
|---|---|---|---|
| Free | n/a | n/a | Up to 50 seed articles, unlimited searches across 310M+ articles, unlimited library and shared collections. |
| ResearchRabbit+, annual | n/a | $120 | Up to 300 seed articles, advanced search controls, multiple projects and Signals alerts. Country discount codes are available. |
| ResearchRabbit+, monthly | $12.5 | n/a | Same features as the annual plan. |
| Institution | n/a | n/a | Contact for pricing. Adds LibKey integration, user management and usage statistics. |
Evidence
Connected Papers
Peer-reviewed
1 PubMed record names Connected Papers.
ResearchRabbit
No FDA decision, peer-reviewed study or community post in our record.
Compliance and integrations
Documented from each vendor’s own pages.
| Spec | Connected Papers | ResearchRabbit |
|---|---|---|
| Free tier | ||
| HIPAA | ||
| SOC 2 Type II | ||
| EHR integrations | Not specified | Not specified |
| Founded | n/a | n/a |
| HQ | n/a | n/a |
Scroll horizontally to see both columns.
Common questions
Open the full research tools comparison
Literature search, paper summarization, citation analysis, systematic-review extraction. Consensus and OpenEvidence have absorbed most clinician research traffic in 2026. We compared the full universe.