AI Content Assistant

Learn Smarter with AI

Paste a YouTube lesson link or upload a document to turn it into a clear transcript, summary, key points, and interactive Q&A.

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Transcribe & Read

Every word turned into an accurate English transcript or parsed text.

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Summarize

A clear summary of what the video or document actually teaches.

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Extract key points

The ideas worth remembering, pulled out and organized.

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Ask anything

Get answers straight from the source's own words.

Add a YouTube lesson

Paste a link to a YouTube video below to analyze the transcript and generate AI key points, summary, and Q&A.

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No content yet

Add a YouTube video or document to generate a full transcript and parsed text.

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No summary yet

Add content and Lumen will summarize it for you.

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No key points yet

Add content to see its most important ideas.

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No questions yet

Add content to see the questions Lumen thinks matter most.

    Ask AI About This Lesson

    Ask questions and get answers based only on the video or document's contents.

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    Add content, then ask anything about it. Answers stay grounded in the transcript/text — nothing else.

    Enter to send · Shift + Enter for a new line

    Backend connection

    Point Lumen at your FastAPI backend. Endpoints used: POST /process, POST /process-document, POST /ask, GET /health.

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    How processing works

    Each file is processed once and kept on the server under a session ID. Summary, key points, questions, transcript, and chat all come from that single pass — switching tabs doesn't reprocess the content.

    Lesson data

    Clear the transcript, summary, key points, and chat history currently loaded in this browser.