AI Research tools

Search engines and assistants that find, read and summarise sources for you.

What to look for in ai research tools

  • Clickable citations you can check — never trust an uncited summary
  • The ability to restrict answers to documents you upload
  • How recent the information is, and whether the tool searches the live web
  • Export options for notes and references

AI Research tools in our database

Listed alphabetically — this is not a ranking. We only rank tools after hands-on testing.

ChatGPT

AI Writing

OpenAI’s general-purpose AI assistant. You type (or speak) a request and it replies conversationally — drafting text, explaining topics,…

Main use
Drafting emails and posts
Free plan
Not yet verified
Pricing
Not yet verified
Last reviewed
Not yet reviewed

Claude

AI Writing

Anthropic’s AI assistant. Like other chat assistants it drafts, edits, analyses and explains, and it is often used for working through…

Main use
Reviewing contracts or reports for key points
Free plan
Not yet verified
Pricing
Not yet verified
Last reviewed
Not yet reviewed

NotebookLM

AI Research

A Google research assistant grounded in the sources you upload. Add documents, notes or links and ask questions — answers reference your…

Main use
Studying for exams
Free plan
Not yet verified
Pricing
Not yet verified
Last reviewed
Not yet reviewed

Perplexity

AI Research

An AI-powered answer engine that searches the web and responds with a written answer plus links to its sources, so you can check where…

Main use
Quick research with sources
Free plan
Not yet verified
Pricing
Not yet verified
Last reviewed
Not yet reviewed

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