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 snapshots

Tracking since Apr 16, 2026.

26.5215.54.48Apr 16, 2026Jun 13, 2026
View as table
DateUsersRatingReviewsVersion
Apr 16, 20261.0.2
Apr 22, 20261.0.2
Apr 29, 202665.0021.1.0
May 6, 2026135.0021.3.31
May 11, 2026215.0021.4.8
May 17, 2026255.0021.4.15
May 23, 2026185.0021.4.15
Jun 5, 2026245.0021.4.15
Jun 13, 2026245.0021.4.18
Now235.0021.5.0

Changelog

  • May 6, 2026
    description
    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, 2026
    permissions
    storage, activeTab, identity, sidePanel, alarms
    storage, activeTab, identity, sidePanel, alarms, notifications
  • Apr 29, 2026
    host_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, 2026
    description
    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, 2026
    host_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

CleoSum — AI YouTube Video Analysis screenshot 1CleoSum — AI YouTube Video Analysis screenshot 2CleoSum — AI YouTube Video Analysis screenshot 3CleoSum — AI YouTube Video Analysis screenshot 4CleoSum — AI YouTube Video Analysis screenshot 5

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
Support URL

Data sourced from the Chrome Web Store · last verified Jun 13, 2026.