CleoSum — AI YouTube Video Analysis
AI analyzes YouTube videos before you click. See scores, summaries, comment insights & transcripts on thumbnails.
As of June 2026, CleoSum — AI YouTube Video Analysis has 23 users and a 5.00/5 rating from 2 reviews in the Productivity category.
Usersno change0%
23
23
Ratingno change0%
5.00
2 reviews
Reviewsno change0%
2
Version
1.5.0
Manifest V3
90-day change · In the last 90 days this extension 6 version updates, changed permissions.
History
9 snapshotsTracking since Apr 16, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 16, 2026 | — | — | — | 1.0.2 |
| Apr 22, 2026 | — | — | — | 1.0.2 |
| Apr 29, 2026 | 6 | 5.00 | 2 | 1.1.0 |
| May 6, 2026 | 13 | 5.00 | 2 | 1.3.31 |
| May 11, 2026 | 21 | 5.00 | 2 | 1.4.8 |
| May 17, 2026 | 25 | 5.00 | 2 | 1.4.15 |
| May 23, 2026 | 18 | 5.00 | 2 | 1.4.15 |
| Jun 5, 2026 | 24 | 5.00 | 2 | 1.4.15 |
| Jun 13, 2026 | 24 | 5.00 | 2 | 1.4.18 |
| Now | 23 | 5.00 | 2 | 1.5.0 |
Changelog
- May 6, 2026description
Stop wasting time on low-quality YouTube videos. CleoSum uses AI to analyze any video before you watch it — so you know what's worth your time. Hover over any YouTube thumbnail to instantly access four powerful tools: Analyze, Summarize, Comments, and Transcript. CleoSum works everywhere on YouTube — the home feed, search results, channel pages, and the watch page sidebar. FEATURES -- Analyze -- Get a full video breakdown in seconds. CleoSum's AI evaluates usefulness score (0-100), content density, filler detection, key topics, target audience, and a clear watch/skip/skim recommendation. Color-coded stat bars make it easy to see quality at a glance. -- Summarize -- Read a structured summary instead of watching the whole video. Includes a TL;DR, key points, timestamped sections you can click to jump directly to that moment, and notable quotes. Perfect for research, studying, or catching up fast. -- Comment Analysis -- Understand what the community thinks without scrolling through hundreds of comments. AI extracts the overall sentiment, recurring themes, top insights, and flags any controversy — so you get the pulse of the audience instantly. -- Full Transcript -- Access the complete video transcript with clickable timestamps. Copy the entire text to your clipboard with one click. Great for note-taking, quoting, or reading at your own pace. -- Watch Page Panel -- On the video watch page, CleoSum adds a dedicated panel below the video player with all four tools accessible without hovering. Your analysis stays visible while you watch. -- Deep Analysis (Pro+) -- Upgrade to Pro+ and unlock Deep Analysis mode — powered by a more capable long-context AI model for sharper, more thorough summaries on long-form content. 10 Deep Analyses per day on top of your 100 standard analyses. -- Share and Copy -- Copy any analysis or summary to your clipboard with one click. Share insights with your team, paste into notes, or save for later. -- Customization -- Adjust font size and analysis language. Supports 40+ languages, including English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, Hindi, and many more. HOW IT WORKS 1. Install CleoSum from the Chrome Web Store. 2. Sign in with your Google account (takes 2 seconds). 3. Browse YouTube normally. CleoSum buttons appear when you hover over any video thumbnail. 4. Click Analyze, Summarize, Comments, or Transcript. 5. Read the AI-generated results right on the thumbnail — no new tabs, no context switching. PRICING Free — 5 analyses, no credit card required. Pro — $19.99/month or $9.99/month billed annually - 50 analyses per day - Full AI summaries, comment analysis, transcripts - All 40+ languages Pro+ — $29.99/month or $19.99/month billed annually - Everything in Pro - Deep Analysis mode (Claude Sonnet 4.6) - 100 Quick + 10 Deep analyses per day - Longer transcripts (40K characters) Cancel anytime. PRIVACY AND SECURITY CleoSum only activates on YouTube. It does not track your browsing history, read your personal data, or access your YouTube account. Video transcripts are processed by AI solely to generate your analysis and are not stored permanently or used for training. Payments are handled securely by Stripe. Read our full privacy policy at https://cleosum.com/privacy.html Built by CleoLead. Questions or feedback? [email protected]
Stop wasting time on low-quality YouTube videos. CleoSum uses AI to analyze any video before you watch it — so you know what's worth your time. Hover over any YouTube thumbnail to instantly access four powerful tools: Analyze, Summarize, Comments, and Transcript. CleoSum works everywhere on YouTube — the home feed, search results, channel pages, and the watch page sidebar. FEATURES -- Analyze -- Get a full video breakdown in seconds. CleoSum's AI evaluates usefulness score (0-100), content density, filler detection, key topics, target audience, and a clear watch/skip/skim recommendation. Color-coded stat bars make it easy to see quality at a glance. -- Summarize -- Read a structured summary instead of watching the whole video. Includes a TL;DR, key points, timestamped sections you can click to jump directly to that moment, and notable quotes. Perfect for research, studying, or catching up fast. -- Comment Analysis -- Understand what the community thinks without scrolling through hundreds of comments. AI extracts the overall sentiment, recurring themes, top insights, and flags any controversy — so you get the pulse of the audience instantly. -- Full Transcript -- Access the complete video transcript with clickable timestamps. Copy the entire text to your clipboard with one click. Great for note-taking, quoting, or reading at your own pace. -- Watch Page Panel -- On the video watch page, CleoSum adds a dedicated panel below the video player with all four tools accessible without hovering. Your analysis stays visible while you watch. -- Deep Analysis (Pro+) -- Upgrade to Pro+ and unlock Deep Analysis mode — powered by a more capable long-context AI model for sharper, more thorough summaries on long-form content. 10 Deep Analyses per day on top of your 100 standard analyses. -- Share and Copy -- Copy any analysis or summary to your clipboard with one click. Share insights with your team, paste into notes, or save for later. -- Customization -- Adjust font size and analysis language. Supports 40+ languages, including English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, Hindi, and many more. HOW IT WORKS 1. Install CleoSum from the Chrome Web Store. 2. Sign in with your Google account (takes 2 seconds). 3. Browse YouTube normally. CleoSum buttons appear when you hover over any video thumbnail. 4. Click Analyze, Summarize, Comments, or Transcript. 5. Read the AI-generated results right on the thumbnail — no new tabs, no context switching. PRICING Free — 1 analysis to try the product, no credit card required. $1 / 3-Day Pro+ Trial — full Pro+ access for 3 days. $1 charged today; auto-renews at $14.99/month (annual) on day 4 unless cancelled. Cancel in one click from the popup. The $1 trial fee is non-refundable; auto-billed subscription charges are eligible for refund within 14 days for EU/EEA customers per the EU Consumer Rights Directive. Pro — $12.99/month or $7.99/month billed annually - 50 analyses per day, 1,000 per month - Full AI summaries, comment analysis, transcripts - All 40+ languages Pro+ — $19.99/month or $14.99/month billed annually - Everything in Pro - Deep Analysis mode (Claude Sonnet 4.6) - 100 Quick + 10 Deep analyses per day - Longer transcripts (40K characters) Cancel anytime. PRIVACY AND SECURITY CleoSum only activates on YouTube. It does not track your browsing history, read your personal data, or access your YouTube account. Video transcripts are processed by AI solely to generate your analysis. Cached analyses are kept for up to 7 days by video ID (not user ID) and are never used for AI training. Payments are handled securely by Stripe — credit card numbers never touch our servers. Read our full privacy policy at https://cleosum.com/privacy.html Built by CleoLead. Questions or feedback? [email protected]
- May 6, 2026permissions
storage, activeTab, identity, sidePanel, alarms
storage, activeTab, identity, sidePanel, alarms, notifications
- Apr 29, 2026host_permissions
https://www.youtube.com/*, https://cleosum.com/*, https://analyze-cbjbkhmlwq-uc.a.run.app/*, https://summarize-cbjbkhmlwq-uc.a.run.app/*, https://comments-cbjbkhmlwq-uc.a.run.app/*, https://createcheckoutsession-cbjbkhmlwq-uc.a.run.app/*, https://userapi-cbjbkhmlwq-uc.a.run.app/*
https://www.youtube.com/*, https://cleosum.com/*
- Apr 22, 2026description
See before you click. Stop wasting hours on videos that don't deliver. CleoSum puts AI-powered analysis directly on every YouTube thumbnail — summaries, scores, comments, transcripts — so you know if a video is worth your time before you ever hit play. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT YOU GET ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ◆ AI Summary TL;DR · Watch / Skim / Skip verdict · key takeaways · timestamped moments · notable quotes ◆ Usefulness Scores (1–10) Info Density · Water / Filler · Clickbait · Sentiment · Production quality ◆ Comment Analysis Viewer sentiment · top likes · common complaints · interesting takes · real quotes ◆ Full Transcript Searchable · clickable timestamps that jump to the exact moment ◆ Shareable Pages Every analysis gets a public link (cleosum.com/video/ID) for docs, Slack, or citations ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ HOW IT WORKS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1. Install CleoSum 2. Hover any YouTube thumbnail — a slim button bar appears 3. Click Summarize · Comments · Transcript 4. Get structured AI insights in seconds ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WORKS ACROSS ALL OF YOUTUBE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Homepage · Search · History · Subscriptions · Trending Watch Later · Liked videos · Custom playlists · Mixes Channel pages · Watch-page sidebar suggestions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 25+ LANGUAGES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ English · Spanish · French · German · Portuguese · Russian · Ukrainian Italian · Dutch · Polish · Turkish · Swedish · Danish · Norwegian · Finnish Czech · Chinese · Japanese · Korean · Arabic · Hindi · Thai · Vietnamese Indonesian · Malay Output language is configurable in the side panel — analyze videos in one language, read results in another, with quoted phrases preserved in the original and translated in italics. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PLANS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ Free 5 lifetime analyses · no credit card ▸ Pro — $4.99/mo (annual) · $9.99/mo (monthly) 50 analyses/day · all core features · unlimited videos ▸ Pro+ — $9.99/mo (annual) · $14.99/mo (monthly) 100 quick + 10 Deep analyses/day · Deep Analysis mode uses Claude Sonnet 4.6 for the sharpest long-form output Cancel anytime. Stripe checkout & billing portal. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CleoSum processes only the video transcripts and public comments you explicitly analyze. We do NOT: ✕ track your browsing history ✕ read other tabs ✕ touch your YouTube cookies ✕ sell or share user data Analysis results are cached by video ID so repeat queries are free. Full policy: https://cleosum.com/privacy ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHO IT'S FOR ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ◇ Researchers triaging dozens of sources a day ◇ Students deciding if that 45-min lecture is worth it ◇ Creators studying their own (or competitor's) comments ◇ Anyone tired of 20-minute videos that could've been a paragraph ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SUPPORT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⟶ cleosum.com ⟶ [email protected] ⟶ Feedback form in the extension side panel Make every minute on YouTube count.Stop wasting time on low-quality YouTube videos. CleoSum uses AI to analyze any video before you watch it — so you know what's worth your time. Hover over any YouTube thumbnail to instantly access four powerful tools: Analyze, Summarize, Comments, and Transcript. CleoSum works everywhere on YouTube — the home feed, search results, channel pages, and the watch page sidebar. FEATURES -- Analyze -- Get a full video breakdown in seconds. CleoSum's AI evaluates usefulness score (0-100), content density, filler detection, key topics, target audience, and a clear watch/skip/skim recommendation. Color-coded stat bars make it easy to see quality at a glance. -- Summarize -- Read a structured summary instead of watching the whole video. Includes a TL;DR, key points, timestamped sections you can click to jump directly to that moment, and notable quotes. Perfect for research, studying, or catching up fast. -- Comment Analysis -- Understand what the community thinks without scrolling through hundreds of comments. AI extracts the overall sentiment, recurring themes, top insights, and flags any controversy — so you get the pulse of the audience instantly. -- Full Transcript -- Access the complete video transcript with clickable timestamps. Copy the entire text to your clipboard with one click. Great for note-taking, quoting, or reading at your own pace. -- Watch Page Panel -- On the video watch page, CleoSum adds a dedicated panel below the video player with all four tools accessible without hovering. Your analysis stays visible while you watch. -- Deep Analysis (Pro+) -- Upgrade to Pro+ and unlock Deep Analysis mode — powered by a more capable long-context AI model for sharper, more thorough summaries on long-form content. 10 Deep Analyses per day on top of your 100 standard analyses. -- Share and Copy -- Copy any analysis or summary to your clipboard with one click. Share insights with your team, paste into notes, or save for later. -- Customization -- Adjust font size and analysis language. Supports 40+ languages, including English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, Hindi, and many more. HOW IT WORKS 1. Install CleoSum from the Chrome Web Store. 2. Sign in with your Google account (takes 2 seconds). 3. Browse YouTube normally. CleoSum buttons appear when you hover over any video thumbnail. 4. Click Analyze, Summarize, Comments, or Transcript. 5. Read the AI-generated results right on the thumbnail — no new tabs, no context switching. PRICING Free — 5 analyses, no credit card required. Pro — $19.99/month or $9.99/month billed annually - 50 analyses per day - Full AI summaries, comment analysis, transcripts - All 40+ languages Pro+ — $29.99/month or $19.99/month billed annually - Everything in Pro - Deep Analysis mode (Claude Sonnet 4.6) - 100 Quick + 10 Deep analyses per day - Longer transcripts (40K characters) Cancel anytime. PRIVACY AND SECURITY CleoSum only activates on YouTube. It does not track your browsing history, read your personal data, or access your YouTube account. Video transcripts are processed by AI solely to generate your analysis and are not stored permanently or used for training. Payments are handled securely by Stripe. Read our full privacy policy at https://cleosum.com/privacy.html Built by CleoLead. Questions or feedback? [email protected]
- Apr 22, 2026host_permissions
https://www.youtube.com/*, https://analyze-cbjbkhmlwq-uc.a.run.app/*, https://summarize-cbjbkhmlwq-uc.a.run.app/*, https://comments-cbjbkhmlwq-uc.a.run.app/*, https://createcheckoutsession-cbjbkhmlwq-uc.a.run.app/*, https://userapi-cbjbkhmlwq-uc.a.run.app/*
https://www.youtube.com/*, https://cleosum.com/*, https://analyze-cbjbkhmlwq-uc.a.run.app/*, https://summarize-cbjbkhmlwq-uc.a.run.app/*, https://comments-cbjbkhmlwq-uc.a.run.app/*, https://createcheckoutsession-cbjbkhmlwq-uc.a.run.app/*, https://userapi-cbjbkhmlwq-uc.a.run.app/*
Permissions & access
- Permissions
- storageactiveTabidentitysidePanelalarmsnotifications
- Host access
- https://www.youtube.com/*, https://cleosum.com/*
Screenshots
About
Stop wasting time on low-quality YouTube videos. CleoSum uses AI to analyze any video before you watch it — so you know what's worth your time. Hover over any YouTube thumbnail to instantly access four powerful tools: Analyze, Summarize, Comments, and Transcript. CleoSum works everywhere on YouTube — the home feed, search results, channel pages, and the watch page sidebar. FEATURES -- Analyze -- Get a full video breakdown in seconds. CleoSum's AI evaluates usefulness score (0-100), content density, filler detection, key topics, target audience, and a clear watch/skip/skim recommendation. Color-coded stat bars make it easy to see quality at a glance. -- Summarize -- Read a structured summary instead of watching the whole video. Includes a TL;DR, key points, timestamped sections you can click to jump directly to that moment, and notable quotes. Perfect for research, studying, or catching up fast. -- Comment Analysis -- Understand what the community thinks without scrolling through hundreds of comments. AI extracts the overall sentiment, recurring themes, top insights, and flags any controversy — so you get the pulse of the audience instantly. -- Full Transcript -- Access the complete video transcript with clickable timestamps. Copy the entire text to your clipboard with one click. Great for note-taking, quoting, or reading at your own pace. -- Watch Page Panel -- On the video watch page, CleoSum adds a dedicated panel below the video player with all four tools accessible without hovering. Your analysis stays visible while you watch. -- Deep Analysis (Pro+) -- Upgrade to Pro+ and unlock Deep Analysis mode — powered by a more capable long-context AI model for sharper, more thorough summaries on long-form content. 10 Deep Analyses per day on top of your 100 standard analyses. -- Share and Copy -- Copy any analysis or summary to your clipboard with one click. Share insights with your team, paste into notes, or save for later. -- Customization -- Adjust font size and analysis language. Supports 40+ languages, including English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, Hindi, and many more. HOW IT WORKS 1. Install CleoSum from the Chrome Web Store. 2. Sign in with your Google account (takes 2 seconds). 3. Browse YouTube normally. CleoSum buttons appear when you hover over any video thumbnail. 4. Click Analyze, Summarize, Comments, or Transcript. 5. Read the AI-generated results right on the thumbnail — no new tabs, no context switching. PRICING Free — 1 analysis to try the product, no credit card required. $1 / 3-Day Pro+ Trial — full Pro+ access for 3 days. $1 charged today; auto-renews at $14.99/month (annual) on day 4 unless cancelled. Cancel in one click from the popup. The $1 trial fee is non-refundable; auto-billed subscription charges are eligible for refund within 14 days for EU/EEA customers per the EU Consumer Rights Directive. Pro — $12.99/month or $7.99/month billed annually - 50 analyses per day, 1,000 per month - Full AI summaries, comment analysis, transcripts - All 40+ languages Pro+ — $19.99/month or $14.99/month billed annually - Everything in Pro - Deep Analysis mode (Claude Sonnet 4.6) - 100 Quick + 10 Deep analyses per day - Longer transcripts (40K characters) Cancel anytime. PRIVACY AND SECURITY CleoSum only activates on YouTube. It does not track your browsing history, read your personal data, or access your YouTube account. Video transcripts are processed by AI solely to generate your analysis. Cached analyses are kept for up to 7 days by video ID (not user ID) and are never used for AI training. Payments are handled securely by Stripe — credit card numbers never touch our servers. Read our full privacy policy at https://cleosum.com/privacy.html Built by CleoLead. Questions or feedback? [email protected]
Technical
- Version
- 1.5.0
- Manifest
- V3
- Size
- 271KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- lnbnfkidmladapedhhgckpgbpjpjgema
- Developer ID
- u448e1eb1916536b39a3a27d7b3b59686
- Developer Email
- [email protected]
- Created
- Apr 15, 2026
- Last Updated (Store)
- Jun 13, 2026
- Last Scraped
- Jun 13, 2026
- Website
- https://cleosum.com/
- Support URL
- —
- Privacy Policy
- https://cleosum.com/privacy.html
Data sourced from the Chrome Web Store · last verified Jun 13, 2026.