Best for: Study & research
Perplexity
An AI search engine that answers with sources you can click.
Free plan is enough to start
Home / Study & research
📚 AI tools to study & research
Understand topics, notes and sources faster. Start with the first one: it's our top beginner pick.
Best for: Write
ChatGPT
The best-known AI chat assistant: ask anything, get a written answer.
Free plan is enough to start
Best for: Write
Claude
A careful, clear AI writing and thinking partner from Anthropic.
Free plan works, with limits
Best for: Study & research
Gemini Notebook (NotebookLM)
Upload your notes or PDFs and chat with them, or hear them as a podcast.
Free plan is enough to start
Best for: Write
Google Gemini
Google's AI assistant, free with any Google account.
Free plan is enough to start
Best for: Study & research
Khanmigo
Khan Academy's AI tutor that guides you instead of giving answers.
No free plan
Best for: Write
Notion
Notes, to-do lists and docs in one app, with built-in AI.
Free plan works, with limits
Best for: Write
QuillBot
Rephrase, summarise and grammar-check text in one place.
Free plan works, with limits
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