Folio vs ResearchRabbit
Citation-graph exploration vs. a research agent that ranks against your library.
ResearchRabbit is a free citation-mapping tool: seed it with a paper or two and it visualizes what those papers cite, what cites them, and co-authorship links, then keeps recommending related work as your collection grows. Folio's Discovery Agents and Radar solve a related but different problem — instead of a graph you explore by hand, they scan multiple sources on a schedule, rank what they find against your own library and stated interests, and deliver a digest explaining why each result was kept.
Where ResearchRabbit shines
- A genuinely useful, free way to map how a body of literature connects — citing/cited-by and co-authorship links, visually, starting from just one or two seed papers.
- Free Forever tier covers a real literature review end to end: unlimited searches and collections, collaboration, up to 50 seed articles.
- No setup beyond picking seed papers — good for exploring a new area rather than tracking one you already know well.
What Folio adds
- Ranks new candidates against your library and stated interests, so what surfaces reflects work you actually keep — not just what shares a citation link.
- Scans OpenAlex, Semantic Scholar and CrossRef on every run and de-duplicates across them, instead of one graph built from a single index.
- Delivers a digest with a one-line reason each item was kept, on a schedule — you check a briefing instead of exploring a graph by hand.
Which should you choose?
Choose ResearchRabbit if you're starting a literature review from scratch and want to visually map how a set of papers cite and relate to each other, for free.
Choose Folio if you want new work ranked against your own library and interests, pulled from more than one source, with a reason attached — delivered as a digest instead of a graph to browse.
Frequently asked
Does Folio replace ResearchRabbit?
Different jobs. ResearchRabbit is best for visually mapping a citation network when you're starting a review; Discovery Agents and Radar are best for an ongoing, ranked digest of new work relevant to research you're already doing.
Where do Folio's Discovery Agents get their data, vs. ResearchRabbit?
OpenAlex, Semantic Scholar and CrossRef, de-duplicated. ResearchRabbit draws on its own citation-graph index.
Is this free like ResearchRabbit?
ResearchRabbit has a genuine free-forever tier. Radar and Discovery Agents are part of Folio's Fellow and Chair plans — a real tradeoff if cost is the deciding factor.
Try the whole chain in one place
Discovery, reading, citations, drafting, and integrity checks — free to start, no credit card.
Comparison reflects publicly available information as of August 2026; ResearchRabbit is a trademark of its owner and is not affiliated with Folio. Tools evolve — spot something out of date? Tell us.