Category
Best AI Research & Search in 2026
AI search engines and research assistants that answer with citations from the web or scientific literature.
At a glance
| Tool | Best for | Pricing | Free plan |
|---|---|---|---|
| Perplexity | Fast, cited answers and research instead of traditional search | Freemium | Yes |
| Elicit | Literature reviews and systematic research | Freemium | Yes |
| Consensus | Quick, evidence-based answers from scientific studies | Freemium | Yes |
| NotebookLM | Studying, research and understanding your own documents | Free (premium via Google AI plans) | Yes |
All AI Research & Search
PerplexityAn AI answer engine that searches the web and cites every source.ElicitAn AI research assistant that finds, summarises and extracts data from papers.ConsensusAn AI search engine that answers questions using peer-reviewed research.NotebookLMGoogle's AI notebook that answers only from your sources — and turns them into podcasts.
Head-to-head comparisons
How to choose
Start with the job you need done, then check three things: whether the free plan covers your volume, whether the tool fits the apps you already use, and how it handles your data. Each review on this page has a dedicated section on problems solved, pricing and alternatives to help you decide.