If you're weighing Eightify vs Glasp, you've already narrowed the field to two of the most popular YouTube tools out there. Both promise to save you time, but they solve very different problems. One is built to compress a video into digestible insights. The other is built to help you highlight, save, and share what you learn.
Picking the wrong one means fighting your tool every day. So let's break down what each is actually good at, who should use which, and where both leave gaps.
What Eightify Is Best At
Eightify is a browser extension focused on one job: turning a YouTube video into a set of key insights fast. You open a video, click the extension, and it produces a structured breakdown — usually a handful of main takeaways with timestamps so you can jump to the relevant moment.
Its strengths are clear:
- Speed on long content. Eightify shines on hour-long podcasts and lectures. It pulls the core arguments so you don't have to scrub through the whole thing.
- Clean, scannable output. The bullet-and-timestamp format is easy to read. You get the gist in under a minute.
- Low friction. It lives in your browser next to the video. No separate app, no copy-pasting transcripts.
Where Eightify is thinner: it's a read-and-move-on tool. There's no real system for saving insights across many videos, no social layer, and the interaction largely ends once you've read the summary. If your goal is "understand this video quickly," Eightify does that well. If your goal is "build a personal knowledge base," it's not designed for that.
What Glasp Is Best At
Glasp comes at the problem from the opposite direction. It's primarily a highlighting and social knowledge tool. On YouTube, it surfaces the transcript alongside the video and lets you highlight passages, add notes, and save them to your personal collection. Those highlights can be exported to note apps and, if you choose, shared publicly.
Its strengths:
- Note-taking depth. Glasp is built for people who learn by capturing and organizing. Highlights become a searchable library you actually revisit.
- Transcript access. Having the full transcript in front of you is useful when you want precise quotes rather than a machine's paraphrase.
- Social discovery. You can follow other people, see what they highlight, and stumble onto sources you'd never have found alone.
- Export-friendly. It plays well with tools like Notion, Obsidian, and Readwise, so highlights don't get stranded.
Where Glasp is thinner: it leans on you to do the work. It's a highlighting layer more than an automatic summarizer, so evaluating whether a video is even worth your time is slower. If you want a hands-off "just tell me the takeaways" experience, Glasp asks more of you than Eightify does.
Free Tiers
Both tools offer a free way to get started, and both gate heavier usage behind a paid plan — a common pattern for AI-powered tools where each summary carries a real compute cost.
Eightify's free tier typically lets you generate a limited number of summaries before prompting an upgrade, which is enough to decide whether the format works for you. Glasp leans more generous on its core highlighting, since the heaviest costs there sit with AI-assisted features rather than the manual highlighting itself.
Pricing and limits change often, so check each tool's current pricing page before committing. The bigger decision isn't the dollar figure — it's whether you want automatic insight extraction (Eightify) or a highlighting and knowledge system (Glasp).
Eightify vs Glasp — Which Is Better?
There's no universal winner. Choose Eightify if you want fast, automatic key-insight summaries of long videos and you mostly read-and-move-on. Choose Glasp if you want to highlight transcripts, build a lasting note library, and tap into a social knowledge network. Eightify optimizes for speed of understanding; Glasp optimizes for retention and organization. Match the tool to whether your bottleneck is time or memory.
Who Should Pick Which
Reach for Eightify if you:
- Consume a lot of long-form video and need the gist quickly.
- Want a zero-setup extension that works inline with YouTube.
- Care more about "should I keep watching?" than about archiving quotes.
Reach for Glasp if you:
- Are a researcher, writer, or student who learns by highlighting.
- Already live in Notion, Obsidian, or Readwise and want highlights to flow there.
- Value discovering sources through other people's public highlights.
A Third Option
Both Eightify and Glasp are solid, but if you're comparing them because you want to genuinely control your video consumption — not just summarize one clip at a time — it's worth knowing there's a third approach.
Summario was built around a different question: not "what did this video say?" but "should I even watch it, and can I trust the summary?" A few things set it apart:
- Watch/Skip verdict. Every summary comes with a clear recommendation and the reasoning behind it, so you can triage a queue of videos in minutes.
- Grounded, timestamped AI chat. You can ask follow-up questions and get answers tied to specific moments in the transcript — with cited timestamps — rather than a loose paraphrase that might hallucinate.
- Email and WhatsApp digests. Instead of opening a tool every time, Summario can deliver summaries from your subscribed channels straight to your inbox or WhatsApp on a schedule.
It's a different philosophy: Eightify compresses, Glasp captures, and Summario decides and delivers. Depending on how you consume video, that framing might fit you better than either.
Side-by-Side Comparison
| Feature | Eightify | Glasp | Summario | | --- | --- | --- | --- | | Primary focus | Automatic key-insight summaries | Highlighting + social knowledge | Decision + delivery system | | Watch/Skip verdict | No | No | Yes | | AI chat with cited timestamps | No | No | Yes | | Transcript highlighting | Limited | Yes (core feature) | No | | Digest delivery (email/WhatsApp) | No | No | Yes | | Best for | Fast understanding of long videos | Building a note library | Managing what you watch at scale |
Frequently Asked Questions
Is Eightify or Glasp better for long podcasts?
Eightify tends to be the faster choice for long podcasts because it automatically extracts key insights with timestamps, so you get the core arguments without scrubbing. Glasp is better if you plan to pull exact quotes and save them, but expect to do more of the work yourself.
Can Glasp summarize videos like Eightify does?
Glasp offers AI-assisted features, but its heart is highlighting and note-taking rather than one-click summarization. If automatic summaries are your main need, Eightify is more purpose-built. If you want to highlight and organize, Glasp fits better.
Do Eightify and Glasp work on the same videos?
Both work on standard YouTube content that has captions or a transcript available. Videos without any transcript are harder for either tool, since both rely on the underlying text to generate summaries or highlights.
What if I want summaries delivered automatically instead of opening a tool?
Neither Eightify nor Glasp is built around scheduled delivery — you open them per video. If you want summaries pushed to your inbox or WhatsApp from channels you follow, that's where a tool like Summario takes a different approach.
The Bottom Line
Eightify and Glasp aren't really rivals so much as tools for two different habits. If you want a machine to hand you the takeaways of a long video, Eightify wins. If you want to highlight, retain, and share what you learn, Glasp wins. And if the real problem is deciding what's worth your time and getting it delivered on autopilot, it's worth exploring a third option.
Want the deeper head-to-head breakdowns? See Summario vs Eightify and Summario vs Glasp, or browse the full list of alternatives to find the summarizer that fits how you actually watch.
