Eightify wins for fast automatic key insights. Glasp wins for highlighting, retention, and social knowledge. They are popular YouTube tools that solve different problems. Picking the wrong one means fighting your software every day.
Disclosure: this comparison is published by Summario. We are a third option when you need Watch/Skip decisions, cited chat, or digests — not a claim that Eightify or Glasp are “bad.” Click through to Eightify and Glasp and test both on the same video.
This guide breaks down what each tool does well, who should use which, where both leave gaps, and when a decision-and-delivery workflow fits better.
What Is the One-Sentence Difference?
Eightify compresses a video into scannable insights fast.
Glasp helps you highlight, save, export, and discover what you learn.
Both can save hours. They save different hours.
What Is Eightify Best At?
Eightify is a browser extension focused on one job: turning a YouTube video into a set of key insights quickly. You open a video, click the extension, and get a structured breakdown — usually main takeaways with timestamps so you can jump to the relevant moment.
Strengths that still matter in 2026:
- Speed on long content. Hour-long podcasts and lectures are the happy path. Eightify pulls core arguments so you do not scrub blindly.
- Clean, scannable output. Bullet-and-timestamp format is easy to read between meetings.
- Low friction. It lives next to the player. No separate notebook ritual, no mandatory highlighting.
- On-demand clarity. When you already committed to “I need the gist of this URL,” Eightify feels snappy.
Where Eightify is thinner
- No first-class Watch/Skip verdict with explicit triage reasoning as a product pillar.
- Limited system for building a long-lived personal knowledge base across hundreds of videos.
- Little social discovery layer compared with Glasp.
- Interaction largely ends once you have read the summary — it is a read-and-move-on tool.
- No email/WhatsApp digest pipeline for channel catch-up.
If your goal is “understand this video quickly,” Eightify does that well. If your goal is “build a personal knowledge base,” it is not designed for that. Deeper Summario-specific contrast: Summario vs Eightify.
What Is Glasp Best At?
Glasp comes at the problem from the opposite direction. It is 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. Highlights can be exported to note apps and, if you choose, shared publicly.
Strengths:
- Note-taking depth. Built for people who learn by capturing and organizing. Highlights become a searchable library you revisit.
- Transcript access. Full transcript in front of you is useful when you want precise quotes rather than a machine paraphrase.
- Social discovery. Follow other people, see what they highlight, stumble onto sources you would not have found alone.
- Export-friendly. Plays well with Notion, Obsidian, and Readwise-style workflows so highlights do not get stranded.
Where Glasp is thinner
- It leans on you to do the work. Evaluating whether a video is worth time is slower than Eightify’s automatic insight pack.
- AI summary features exist, but summarization is not the gravitational center the way it is for Eightify.
- No Watch/Skip decision layer or scheduled digest delivery.
- If you want hands-off “just tell me the takeaways,” Glasp asks more of you than Eightify does.
If you are a researcher or writer who lives in highlights, Glasp is excellent. Related reading: how to take notes from YouTube videos.
How Do Free Tiers and Pricing Compare?
Both tools offer a free way to get started, and both gate heavier AI usage behind a paid plan — common when each summary carries compute cost.
| Aspect | Eightify | Glasp |
|---|---|---|
| Free starting point | Limited free summaries to try the format | Often more generous on core highlighting |
| What you pay for | Higher summary volume / premium features | AI-assisted extras beyond manual highlights |
| Best free test | Run 2–3 long podcasts you already know | Highlight one lecture and export to your notes app |
| Pricing caveat | Limits change — check eightify.app | Limits change — check glasp.co |
The bigger decision is not the dollar figure. It is whether you want automatic insight extraction (Eightify) or a highlighting and knowledge system (Glasp). Confirm live pricing on each vendor’s site before committing.
Who Should Pick Eightify vs Glasp?
Choose 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?” in a lightweight sense than about archiving quotes.
- Prefer bullets over building a personal wiki.
Choose 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.
- Prefer exact quotes over machine paraphrase.
Quick decision table
| Situation | Better default |
|---|---|
| 90-minute podcast, 5 minutes to spare | Eightify |
| Need three exact quotes for an article | Glasp |
| Weekly lecture → permanent notes library | Glasp |
| Queue of “maybe useful” videos to skim | Eightify |
| Want social discovery of what others save | Glasp |
| Want the same insight format every time | Eightify |
There is no universal winner. Eightify optimizes for speed of understanding; Glasp optimizes for retention and organization. Match the tool to whether your bottleneck is time or memory.
Where Do Both Tools Leave Gaps?
Even if you love one of them, three gaps show up often:
- Explicit triage. Neither centers a Watch/Skip verdict with a short reason as the primary output. You still decide implicitly.
- Grounded multi-turn chat with citations. You can summarize or highlight, but asking “What caveat did they give after the demo?” with jump-to-moment receipts is not the core loop.
- Delivery outside the browser. Neither is built to push scheduled channel digests to email or WhatsApp while you are offline.
Native YouTube AI / Ask YouTube can cover some casual skims when available (YouTube Help: Ask YouTube), but it also does not replace highlight libraries or insight packs — see Ask YouTube vs AI summarizers. Study-first users may prefer NoteGPT. Multi-source researchers may prefer Gemini Notebook / NotebookLM.
When Is Summario a Better Third Option?
If you are comparing Eightify vs Glasp because you want to control video consumption at scale — not only summarize or highlight one clip — a third approach exists.
Summario is built around a different question: not only “what did this video say?” but “should I watch it, can I trust the summary, and can insights find me tomorrow?”
What it adds on purpose:
- Watch/Skip verdict — clear recommendation plus reasoning for triage.
- Quick vs full depth — do not spend full attention when a skim suffices.
- Grounded chat with cited timestamps — ask follow-ups and jump to the moment (AI chat).
- Email + WhatsApp digests — channel catch-up without opening YouTube (Pro).
- Free tier: 3 quick + 1 full + 1 chat/day. Pro from about $5.75/mo annually (pricing).
Honest Summario limits
- Chrome-only extension (web app helps on other browsers).
- Free caps are real on heavy research days.
- Transcript-dependent; no pure-visual understanding of silent slides.
- We publish this page — bias exists. Verify on your content.
Philosophy shorthand: Eightify compresses, Glasp captures, Summario decides and delivers. Use that framing only if it matches your actual pain. Product pages: Summario vs Eightify, Summario vs Glasp, alternatives.
How Do the Three Compare Side by Side?
| 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 | Not the headline strength | Limited for pure Q&A | Yes |
| Transcript highlighting | Limited | Yes (core feature) | No (summary/chat-centric) |
| Digest delivery (email/WhatsApp) | No | No | Yes (Pro) |
| Social knowledge layer | Limited | Yes | No |
| Best for | Fast understanding of long videos | Building a note library | Managing what you watch at scale |
| Extension posture | Chrome-centric | Browser extension + web habits | Chrome extension + web app |
For the wider market (including NoteGPT and native YouTube AI), see best YouTube summarizer 2026 and best YouTube summarizer Chrome extensions.
Soft CTA
If you want a machine to hand you takeaways of a long video, start with Eightify. If you want to highlight, retain, and share what you learn, start with Glasp. If the real problem is deciding what deserves time and getting it delivered on autopilot, try Summario’s free daily allowance on the Chrome extension — then keep Eightify or Glasp for the jobs they still win.
FAQ
Is Eightify or Glasp better?
Eightify is better for fast, automatic key-insight summaries of long videos. Glasp is better for highlighting transcripts, building a lasting note library, and social knowledge discovery. Choose based on whether your bottleneck is time-to-gist or retention-and-organization.
Is Eightify or Glasp better for long podcasts?
Eightify tends to be faster for long podcasts because it extracts key insights with timestamps automatically. Glasp is better if you plan to pull exact quotes and save them, but expect more manual work.
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.
Do Eightify and Glasp work without captions?
Both rely heavily on transcript or caption text. Videos without usable captions are harder for either tool. Always check whether the creator enabled captions before blaming the summarizer.
Does Eightify or Glasp send digests to email or WhatsApp?
Neither is built around scheduled channel digests to email or WhatsApp. If you want summaries pushed on a schedule from channels you follow, that is a different product category — Summario focuses on that delivery workflow.
When should I pick Summario instead of Eightify or Glasp?
Pick Summario when you need Watch/Skip triage, timestamp-cited chat, or digests outside the browser. Stick with Eightify for pure bullets or Glasp for highlight libraries if those jobs match your habits.
Are Eightify and Glasp free?
Both offer free ways to start and gate heavier AI usage behind paid plans. Limits change — verify current allowances on eightify.app and glasp.co before committing.
