Research & search AI tools
AI search and research assistants that show sources. Always verify citations before you publish or cite.
| Tool | Pricing | Summary |
|---|---|---|
| Paid | Use AI to search, summarize, extract data from, and chat with over 125 million papers. Used by over 2 million researche… | |
| Freemium | Gemini Notebook is an online research and note-taking retrieval-augmented generation tool developed by Google Labs that… | |
| Freemium | Perplexity AI, Inc., or simply Perplexity, is an American privately held software company offering a web search engine… | |
| Freemium | Perplexity Research is Perplexity’s deeper retrieval mode for sourced answers. Freemium — open every citation before yo… | |
| Enterprise | Explore Azure AI Search (formerly Azure Cognitive Search) to power enterprise RAG AI agents with secure, scalable knowl… | |
| Freemium | Use ResearchRabbit to find related papers, build citation maps, and track research trends — powered by AI. Freemium — v… |
- ElicitPaid
Use AI to search, summarize, extract data from, and chat with over 125 million papers. Used by over 2 million researchers in academia and i…
- NotebookLMFreemium
Gemini Notebook is an online research and note-taking retrieval-augmented generation tool developed by Google Labs that uses artificial int…
- PerplexityFreemium
Perplexity AI, Inc., or simply Perplexity, is an American privately held software company offering a web search engine that processes user…
- Perplexity ResearchFreemium
Perplexity Research is Perplexity’s deeper retrieval mode for sourced answers. Freemium — open every citation before you treat a report as…
- Azure AI SearchEnterprise
Explore Azure AI Search (formerly Azure Cognitive Search) to power enterprise RAG AI agents with secure, scalable knowledge retrieval from…
- ResearchRabbitFreemium
Use ResearchRabbit to find related papers, build citation maps, and track research trends — powered by AI. Freemium — verify limits on the…
How to choose research & search AI tools
- Open primary sources for any claim you will cite
- Test on a question you already know the answer to
- Prefer tools that make uncertainty visible