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Source-backed research

AI Document Summarizer with Citations

Summarize long documents with AI, ask questions about the content, and verify important answers with citations back to the original source.

Summarize a Document

Choose your source and outputs in the KnowledgePilot workspace.

KnowledgePilot document analysis with paragraph citations and a highlighted source passage
Real KnowledgePilot source and result view

Summarize Long Documents with AI

Choose a structured summary, key takeaways, or another output that suits the material. Keep the document beside the result so its meaning stays in context.

Ask Questions About Your Documents

Use Customized Question to focus on a clause, finding, or open issue. For completed documents grouped in a Knowledge Hub, ask a question across sources and see which document supports each answer.

Verify Answers with Source Citations

Citation-bearing outputs include references to retained document paragraphs. Open them while reviewing important findings, especially where wording or qualifications matter.

Find the Supporting Passage

A citation opens the source viewer at the relevant extracted paragraph and highlights it. Read the surrounding text before reusing an answer.

Documents You Can Analyze

The current upload workflow accepts PDF, DOCX, TXT, RTF, MOBI, EPUB. Files must contain extractable text and stay within the 40 MiB upload and 150,000 extracted-token limits.

How Document Summarization Works

  1. Upload a supported document in Add Analysis.
  2. Choose an output or enter a focused question.
  3. Start analysis and review the generated result.
  4. Open cited paragraphs to inspect the supporting source text.

Who Is This Useful For?

Researchers, students, engineers, and analysts can work through lengthy specifications, reports, and other supported text documents while checking important answers against the source.

Frequently Asked Questions

Which document formats are supported?

PDF, DOCX, TXT, RTF, MOBI, EPUB are currently accepted. Legacy DOC files are not supported.

Can I ask questions about several documents?

Yes. Add completed sources to a Knowledge Hub to ask questions across them. A combined analysis can also use two to four completed Library assets.

Do document answers include citations?

Citation-bearing outputs link substantive answers to extracted source paragraphs. The quick short summary is citation-free.

Can I find the supporting passage?

Yes. Clicking a paragraph citation scrolls to and highlights the relevant text in the built-in source viewer.

Are scanned or protected documents supported?

DRM-protected files and scanned or image-only documents are not supported in the current text extraction workflow.

Working specifically with PDFs? Explore the PDF summarizer

Bring every source together in one Knowledge Hub.

Build a library of documents and videos, bring related sources together in Knowledge Hubs, and ask questions across them. Get clear, source-backed answers while keeping every project organized in one place.

  • Create your research librarySave videos, documents, notes, and generated analyses for future reference.
  • Organize sources into HubsGroup related material by topic, project, client, or research goal.
  • Ask across multiple sourcesExplore connections and get answers grounded in everything within a Hub.
  • Verify every important insightJump directly to the supporting passage or video timestamp.

Simple pricing

Start free. Upgrade when your research grows.

Every plan includes source-linked answers, summaries, and research across videos and documents.

Free

$0forever

Explore source-backed analysis with no credit card required.

  • 40 trial credits
  • 1 Knowledge Hub
  • 5 Watchlist channels

Starter

Most popular

$16per month10% off

For regular research across videos and documents.

  • 356 credits monthly
  • 5 Knowledge Hubs
  • Approx. 25 one-hour YouTube analyses

Pro

$26per month20% off

For deeper, higher-volume research workflows.

  • 650 credits monthly
  • 10 Knowledge Hubs
  • Approx. 50 one-hour YouTube analyses

Prices shown in USD. Credits are added monthly on paid plans.

Start turning your sources into knowledge.

Paste a YouTube link or upload a document to get source-backed answers, summaries, and research. New accounts receive 40 starter credits after email verification.

  • 40 starter creditsAdded after email verification
  • No credit card requiredNothing to cancel
  • YouTube + documentsPDF, DOCX, TXT, RTF, MOBI, EPUB; up to 40 MiB / about 400 typical pages
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