NotebookLM
No reviews yet
Google's free research notebook that answers questions only from the sources you give it.
Free
6 free tools
🎁Free Research AI tools we like
1 is completely free and 5 have a free plan with paid upgrades. Sorted by popularity.
← All Research tools, free and paidChatGPT
No reviews yet
The everyday AI assistant most people try first, good at drafting, explaining and making images.
Free · Plus $20/mo
Gemini
No reviews yet
Google's AI assistant, at its most useful when it can see your Gmail, Docs and Drive.
Free · Advanced $19.99/mo
Perplexity
No reviews yet
Ask a question, get a clear answer with links to where the information came from.
Free · Pro $20/mo
Elicit
No reviews yet
A research assistant that finds relevant papers and pulls key findings into a tidy table.
Freemium🔬 Research
Free · Plus $12/mo
Consensus
No reviews yet
Ask a research question and see what the scientific literature actually says about it.
Freemium🔬 Research
Free · Premium $11.99/mo
FAQ
What is the best research AI tool in 2026?+
Our shortlist: ChatGPT (new, $20), Gemini (new, $19.99) and Perplexity (new, $20).
Can I use a research AI tool for free?+
Absolutely — 6 tools here have a free plan. We’d start with ChatGPT, Gemini and Perplexity.
How much should I expect to pay for research software?+
Most paid plans sit around $19.99/month. The cheapest we list starts at $11.99, the priciest at $20.
Which research tools can developers build on?+
3 offer an API — handy if you want to plug them into your own product. Try ChatGPT, Gemini and Elicit.