Glasp vs Sider
A side-by-side comparison of Glasp and Sider, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | Glasp | Sider |
|---|---|---|
| Category (differs) | Productivity | Assistant |
| Pricing | FREEMIUM | FREEMIUM |
| License | Proprietary | Proprietary |
| Deployment | — | — |
| Platforms (differs) | Browser extension, Web | Browser extension |
| Model support (differs) | BYO key / model | Multi-model |
| Vendor (differs) | Glasp | Sider AI |
| Capabilities (differs) |
|
|
The honest brief
Glasp
Pairs a social highlight network with multi-format capture (web, PDF, YouTube) and BYO-key AI summaries.
- Highlights web pages, PDFs, and YouTube
- Export to Obsidian, Notion, Roam
- Generous free tier
- AI summaries via ChatGPT/Claude/Gemini
- Highlights are public by default
- Private notes require paid Pro tier
- YouTube summaries need captions
Sider
Built browser-first, not a chatbot bolted on — one subscription spans multiple model providers on any tab.
- Multi-model (Claude, GPT, Gemini) in one plan
- Among most-installed browser AI assistants
- Side-panel UX tuned for web pages and PDFs
- Works across Chrome, Edge, and more
- Closed source
- Heavy users hit message/credit limits
- Less media generation than Monica
When to pick which
Across the signals we compare, Glasp and Sider differ on platforms and model support:
- Platforms
- Browser extension, Web · Browser extension
- Model support
- BYO key / model · Multi-model
Their capability lists differ in recorded depth — compare the full lists above before deciding.