CORE vs ResearchRabbit

CORE is a multidisciplinary discovery service for scholarly work gathered from repositories, preprint servers and journals. Its search covers research papers, journal articles, preprints, theses, dissertations, conference proceedings, reports and books. CORE says its collection holds 449 million searchable papers, including 57 million full texts. Researchers and the public can search this material; developers can use the API for real-time access to metadata and full texts. The CORE Dataset supports downloading data for analysis and text mining on an organisation’s own infrastructure, though access is limited to users representing organisations registered in non-sanctioned countries. Individuals can use the API instead. CORE Discovery is available as a browser extension, repository plugin and API, and CORE Recommender suggests related articles in repositories, journal systems and web interfaces. Free API access costs nothing, subject to rate limits of one batch request or five single requests per 10 seconds. Starting membership costs nothing for data providers. The service describes itself as not-for-profit and community-governed.

ResearchRabbit is a web service for discovering research related to papers users select. It analyzes those papers and recommends connected work, with interactive maps showing links among papers, authors and concepts. Its recommendations adapt to reading patterns and research interests. The Free plan costs nothing and provides unlimited searches across more than 310 million articles, an unlimited library and collections, sharing, core search settings and up to 50 seed articles. ResearchRabbit+ raises the seed limit to 300 and adds advanced search controls, multiple projects, Signals alerts and faster support responses. Its annual plan costs $10 a year (billed per month, Annual plan); the monthly plan costs $12.50 a month (billed per month, Monthly plan). Users can import selected articles from Zotero collections and export articles as BibTeX. ResearchRabbit is aimed at researchers and students, and does not provide screening workflows, full-text management or systematic review tools.