10 tools
Search and research
Tools that find, read and cite sources: answer engines that search the web, and research assistants built for papers, notes and long documents.
Start with Gemini Notebook or Perplexity. 8 of 10 can be used for free. Search within research
- Gemini NotebookFree planGoogle's research notebook, formerly NotebookLM: answers grounded in your own sources, plus audio and video overviews.
- PerplexityFree planAn answer engine that searches the web in real time and replies with numbered citations to its sources.
- ConsensusFree planAn academic search engine that answers questions from peer-reviewed research and shows the papers behind each answer.
- ElicitFree planA research assistant that searches academic papers, extracts findings into tables and writes cited research reports.
- Kagi AssistantFree trialMany leading AI models in one chat, with optional web results from the ad-free Kagi Search and no training on your data.
- ResearchRabbitFree planA literature discovery tool that starts from papers you like and maps related work, authors and citations.
- SciSpaceFree planAn AI research workspace for literature reviews, chatting with PDFs and writing papers with cited sources.
- SciteFree trialScholarly search and an AI assistant with Smart Citations that show if later papers support or dispute a claim.
- Semantic ScholarFreeA free, AI-powered search engine for scientific literature from the nonprofit Ai2, with an open API.
- UndermindFree planAn AI research agent that reads full texts and figures of papers to find studies others miss, citing every source.