Liner
AI research search engine with cited answers and research agents
Overview
Liner is an AI search and research platform that answers questions with source citations, runs deep research and analyses uploaded files. It is aimed at students, academics and professionals who need sourced, verifiable answers.
Good for
Key features
- Advanced Search with cited sources
- Deep Research reports
- File upload and document analysis
- Access to multiple leading AI models
- Specialised research agents
Pricing
| Plan | Billed monthly | Billed yearly | Notes |
|---|---|---|---|
| Pro | $17.99/mo | $14.99/mo | |
| Max | $35.99/mo | — |
From our research of the official pricing page; not yet confirmed by an automatic check. Prices in USD per month: the only currency the page showed us, so UK prices may differ. A dash means that billing option isn't shown.
Free tier
Free plan: unlimited Advanced Search, Deep Research and image generation access, 1 file upload per day (25MB), answers with ads, no agent credits.
Alternatives to Liner
Change timeline
Every change we've confirmed on the official pricing page: prices, plans, the free tier and restrictions. Each one was seen on two checks in a row.
No changes since tracking began; last checked 4 Oct 2026. We re-read the pricing page every day.