Up to 5 Sources, Analyzed and Combined into 1 Audio File
Drop docs, YouTube links, articles, and screenshots into one bucket. ListenJet analyzes everything together and gives you one audio that covers all of it.
Available on all plans — Free, Pro, and Max
The Problem Mega Summary Solves
You're preparing for a meeting. There's a 40-page report. A competitor's product demo on YouTube. Two news articles your colleague forwarded. And a screenshot of a Slack thread with the numbers you need.
You could open five tabs, read everything, take notes, try to connect the dots, and write your own summary.
Or you could upload all five into ListenJet and get one audio briefing that synthesizes everything — while you're getting coffee.
That's Mega Summary.
How It Works
Many sources in. One audio out.
Upload Your Sources
Add 2-5 sources in any combination:
- Documents — PDF, DOCX, PPTX
- YouTube videos — paste any URL
- Web articles — paste any URL
- Screenshots and images — whiteboards, Slack threads, charts, handwritten notes
Mix formats freely. A research paper + a YouTube keynote + a screenshot of meeting notes = one briefing.
AI Reads Everything Together
ListenJet doesn't summarize each source separately and glue them together. The AI reads all sources as one pool — finding shared themes, spotting where sources agree or conflict, and connecting insights across documents.
Choose Your Summary Style
Pick the output that fits your situation:
- Concise — 8-10% of combined content. The elevator version.
- Extended — 35-40%. Key points with supporting context.
- Formal — Professional, academic tone. Ready for stakeholders.
- Conversational — Friendly, easy listening. For your commute.
Listen, Chat, Download
Stream the briefing in your browser. Ask follow-up questions that span all sources ("Which report cited the highest growth rate?" "Did the video and the article agree on pricing?"). Download as MP3 on Pro and Max plans.
This Is Not Five Summaries Stitched Together
Most tools summarize documents one at a time. You still have to read five summaries and connect the dots yourself. Mega Summary is cross-source synthesis.
Where Sources Agree
Shared conclusions, overlapping data, reinforcing arguments — consolidated into clear consensus points.
Where Sources Conflict
Contradictory findings, different numbers, opposing viewpoints — flagged so you know where to dig deeper.
What Connects Them
Themes that emerge only when you look at everything together — the patterns no single source reveals alone.
The output is one coherent narrative, not a playlist of individual summaries.
Use Cases
Real scenarios where Mega Summary saves hours.
Meeting Prep
Walk into any meeting ready. Combine the agenda, last meeting's notes, the background report, and that article someone mentioned in the group chat.
Sources: PDF report + DOCX notes + web article + screenshot of Slack message
Research Synthesis
Turn hours of reading into one listen. Upload 3-5 papers on the same topic and get a synthesized overview — shared findings, methodology differences, and gaps.
Sources: 3-5 PDF research papers
Competitive Intelligence
Know what everyone's doing without spending a day on it. Combine competitor product pages, press releases, analyst reports, and demo videos.
Sources: Web articles + YouTube product demos + PDF analyst report
Due Diligence
Before you invest, partner, or buy — get the full picture. Financial filings, news coverage, industry reports, and pitch deck screenshots, all synthesized.
Sources: PDF filings + web articles + PPTX screenshots + YouTube interviews
Content Research
Before you write, know what's already been said. Scan existing articles, videos, and reports on your topic. Find the gap your content can fill.
Sources: Web articles + YouTube videos + PDF whitepapers
Study Review
Finals week. Combine lecture slides, textbook chapters, supplementary readings, and photos of your handwritten notes into one audio review session.
Sources: PPTX lecture slides + PDF textbook chapter + screenshots of handwritten notes
What You Can Upload
Combine up to 5 sources per Mega Summary. Any mix of formats.
Documents
- PDF (reports, papers, ebooks, contracts)
- DOCX (Word documents, memos)
- PPTX (slide decks, presentations)
Video
- YouTube URLs (talks, demos, interviews, lectures)
Web
- Article and blog URLs (news, analysis, opinion pieces)
Visual
- Screenshots (Slack, dashboards, charts)
- Photos of documents (whiteboards, handwritten notes)
- Images with text (infographics)
No Other Audio Tool Does This
| Capability | ListenJet | Speechify | NaturalReader | NotebookLM |
|---|---|---|---|---|
| Combine multiple sources | 2-5 sources | Yes | ||
| Cross-source synthesis | Themes, conflicts, connections | Podcast format only | ||
| Input: documents | PDF, DOCX, PPTX | |||
| Input: YouTube | ||||
| Input: web articles | Chrome ext | |||
| Input: screenshots/images | Yes (OCR) | |||
| Output format | Single-narrator (4 styles) | N/A | N/A | Two-host podcast |
| You choose the style | Concise / Extended / Formal / Conversational | N/A | N/A | AI decides |
| MP3 download | Pro and Max | N/A | N/A | Limited |
| Chat across sources |
The closest competitor is NotebookLM — but NotebookLM outputs a podcast-style two-host conversation you can't control the format of, and it doesn't accept screenshots or images. Mega Summary outputs a focused, single-narrator briefing in the style you choose.
Available on Every Plan
Free
$0
- Mega Summaries1 (lifetime)
- Sources per summaryUp to 5
- Summary stylesAll 4
- MP3 download
- Chat across sources
Pro
$27/mo
- Mega Summaries3 per month
- Stored8
- Sources per summaryUp to 5
- Summary stylesAll 4
- MP3 download
- Chat across sources
Max
$45/mo
- Mega Summaries8 per month
- Stored12
- Sources per summaryUp to 5
- Summary stylesAll 4
- MP3 download
- Chat across sources
FAQ
Up to 5 sources per Mega Summary. Sources can be any mix of documents (PDF, DOCX, PPTX), YouTube videos, web articles, and screenshots or images.
Yes. Upload screenshots of Slack threads, dashboards, whiteboards, handwritten notes, or any image with text. ListenJet uses OCR to extract the text and includes it in the synthesis alongside your other sources.
No. The AI reads all sources together and creates a true cross-source synthesis — identifying shared themes, conflicting information, and connections that only emerge when you look at everything together. It's one coherent briefing, not five summaries concatenated.
Yes. After generating a Mega Summary, the chat feature draws from all sources. You can ask "Which sources disagreed on pricing?" or "What did the report and the video have in common?"
Yes. All four summary styles are available: Concise (8-10% of combined content), Extended (35-40%), Formal (professional tone), and Conversational (friendly, easy-listening style).
All plans. Free includes 1 Mega Summary (lifetime). Pro includes 3 per month (8 stored). Max includes 8 per month (12 stored).
Yes, on Pro and Max plans. Download the audio briefing for offline listening on any device.
NotebookLM also supports multiple sources but outputs a podcast-style two-host conversation in a format you can't control. Mega Summary outputs a focused, single-narrator briefing in the summary style you choose, accepts screenshots and images (NotebookLM doesn't), and offers MP3 download for offline listening.