What Sider is
Sider is a sidebar resident AI: summarise what you read, translate with parallel text, interrogate selections and analyse documents without leaving the page.
What you can do with it
- Summarise articles and videos
- Translate with side-by-side text
- Ask about highlighted passages
- Upload documents for analysis
- Keep assistance one click away
Who it is for
- Researchers and students
- Cross-language readers
- Content operations teams
What to watch out for
- Sidebar assistants see page context; mind sensitive and authenticated pages
- Document uploads go to model providers; check data policy
- Summary and translation errors need review for consequential use
- Free tier limits apply to heavy use
Pros & cons
✓ What we like
- Convenient page-context assistance
- Bilingual translation is practical
- Document analysis included
! What to watch out for
- Content exposure to providers
- Free tier constraints
- Summary accuracy varies
FAQ
Is it free?
A free tier is described; confirm limits and paid tiers.
Which models does it use?
Multiple providers are supported; check current list.
Can it analyse PDFs?
Yes, document upload and analysis is a described feature.
Last reviewed: 2026-09-19
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