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Popular tool to chat with PDFs and other documents, giving summaries and cited answers, with a free daily tier and no-signup start.
AI creation studio that gathers scattered notes and ideas, then helps shape them into articles, slides, videos, or webpages.
An AI-powered learning platform that turns sources into concept maps, flashcards, quizzes and summaries with multi-model chat.
An AI summarizer that turns YouTube, video, audio, PDFs and webpages into notes, transcripts, translations and mind maps.
Turns books, papers and expert sources into personalized audio lessons and AI podcasts you can chat with.
No public pricing
No public pricing
No public pricing
Free trial available
- ✦Chat with PDFs, Word, PowerPoint and text files
- ✦Summaries with cited sources
- ✦Multi-file chats via folders
- ✦Any-language upload and chat
- ✦Extra tools: AI writer, detector, flashcards, slides
- ✦No-signup quick start
- ✦Central capture space for saved articles, videos, and notes
- ✦AI prompts that surface connections and gaps in collected ideas
- ✦Generates articles, slide decks, videos, and webpages from source material
- ✦Prebuilt style templates for slides and pages
- ✦Available as desktop app, browser extension, and mobile app
- ✦Skill and prompt library for specific creation tasks
- ✦Concept map builder
- ✦Flashcards with spaced repetition
- ✦AI quiz and summary generation
- ✦Import from PDFs, YouTube, websites, PubMed and arXiv
- ✦Multi-model AI chat (GPT, Claude, Gemini, Qwen)
- ✦Cross-format conversion and sharing
- ✦YouTube summarization and transcripts
- ✦Video and audio summarization
- ✦PDF and webpage summarization
- ✦Mind map generation
- ✦Translation and knowledge extraction
- ✦Export to MP3, MP4 or structured notes
- ✦Personalized audio lessons from many sources
- ✦Custom AI podcast generation
- ✦Choice of voice, language and depth
- ✦Chat with the audio content
- ✦Flashcards and progress tracking
- ✦Book summaries and curated lists
- →Understand research papers
- →Study and homework help
- →Review contracts and reports
- →Translate and summarize documents
- →Creators consolidating research into finished blog posts or scripts
- →Professionals turning meeting notes into structured reports
- →Teachers converting lesson ideas into slides and video lessons
- →Product managers organizing scattered feedback into insights
- →Visualizing and studying complex topics
- →Turning research sources into study materials
- →Literature review and dissertation prep
- →Summarizing YouTube lectures for study
- →Extracting notes from PDFs and articles
- →Turning long content into mind maps
- →Learning from books during a commute
- →Generating podcasts on chosen topics
- →Retaining knowledge with flashcards