What you can do with it
ResearchRabbit helps you discover scientific papers by exploring connections around articles you already know. Its visual citation relationships and collections support an iterative literature search, where each relevant paper leads to more possibilities. The free plan is useful for building and sharing a reading collection during an ordinary literature review.
What’s included for free
Free Forever includes unlimited searches, library and collections, collection sharing, and up to 50 seed articles. Paid ResearchRabbit+ adds advanced controls and larger-scale workflows.
Free tiers can restrict usage or features. Paid upgrades are separate.
Official sources
The official pages used to check this listing.
Free planPerplexity
Perplexity combines web search with conversational answers and source links, helping you investigate a question and then ask follow-ups. It is useful for orientation on unfamiliar topics and collecting starting points for further reading. Its free plan covers everyday searching, while advanced research and premium model access have much tighter restrictions.
Free accessAndi
Andi combines conversational search with web results, giving you a direct answer and links to explore further. Its public search experience also supports reading, summarizing, and explaining material. It is a convenient option for people who want AI-assisted search without creating an account, with a separate product for developers using its API.
Free accessAsk Brave
Ask Brave brings an AI conversation interface into Brave Search, combining synthesized answers with webpages and other search results. You can start from a normal search and continue in the Ask view. It works in any supported browser, so you can try the service without installing the Brave browser first.