Best Research AI tools
Search, literature review and evidence-based answers.
7 tools
ChatGPT
OpenAI
The general-purpose AI assistant most people start with
4.7(1,841) ratingsFree tierAPI
Claude
Anthropic
Thoughtful assistant strong at long documents and writing
4.7(1,221) ratingsFree tierAPI
Gemini
Google's multimodal assistant, wired into Workspace
4.4(910) ratingsFree tierAPI
Perplexity
Perplexity AI
Answer engine with citations for every claim
4.6(761) ratingsFree tierAPI
NotebookLM
Grounded research assistant over your own sources
4.5(341) ratingsFree tier
Elicit
Elicit
Systematic literature review, automated
4.3(120) ratingsFree tier
Consensus
Consensus
Search engine for peer-reviewed evidence
4.2(110) ratingsFree tierAPI