Perplexity
Solo $20 · Team-5 $100/mo
G2 4.4 (364)
Covers:ChatAgents
Cited, real-time web answers from several frontier models
Free plan
Liner
AI search with line-by-line citations, file Q&A and web highlighting.
Covers:ChatAgents
Free plan
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Facts verified Nov 2026. Spotted a mistake?
What you'd pay
verified Nov 2026Solo
$15/mo
Team of 5
$75/mo
Per seat
PlanMonthlyAnnual, per monthUnitIncluded
FreeMonthly: $0Annual, per month: $0per_seat
- · Simple Search
- · 3 Advanced Searches/day
- · 3 Research Reports/month
- · 1 file question/day (25MB)
ProMonthly: —Annual, per month: $15per_seat
- · Unlimited Simple and Advanced Search
- · 25 Research Reports/month
- · 20 file questions/day, 5 files, 100MB
- · Latest top AI models
MaxMonthly: —Annual, per month: $30per_seat
- · Unlimited search
- · 200 Research Reports/month
- · Unlimited file questions, 20 files, 200MB
- · Latest top AI models
External ratings
verified Nov 2026Our scores
Value3/5
Ease of use4/5
Depth3/5
Support2/5
Text 4/5Image 2/5Video 2/5Agents 3/5
What it is
Liner is a consumer AI search and research assistant that answers questions with sentence-level source citations, runs multi-step research reports and lets you ask questions about uploaded files, PDFs, images and YouTube videos. It started as a web highlighter, so the browser extension and mobile apps are strong. Plans are sold only on annual billing, and Trustpilot and G2 carry repeated complaints about unexpected charges and slow refunds.
Standout capability
Sentence-by-sentence citations that let you trace every claim to its source.
Best for
StudentsContent researchersSolo professionals
- Simple and Advanced AI search with citations
- Research Reports (deep research)
- Q&A on files, PDFs, images and YouTube
- Browser extension highlighter and mobile apps
Community sentiment
What people praise
Reviewers value the traceable citations, the cross-platform highlighting and file analysis, and a free tier that covers casual research.
What people complain about
Recurring complaints concern surprise charges after trials or renewals, refused refunds, slow support and a free plan that feels tightly capped.
Geo & compliance
- Local-currency pricing
- No
- Regional pricing
- No team plan shown; team5 = 5 x Pro annual. Interface available in Korean, Chinese and Japanese but prices shown only in USD.
- EU data hosting
- Unknown
- DPA available
- No
What we like
- Generous free tier for light use
- Choice of top AI models on paid plans
- Works across desktop, mobile and Chrome extension
Worth knowing
- Only annual billing shown; no monthly option
- Billing and refund complaints on review sites
- Small user community, little independent benchmarking
Alternatives to consider
Exa
Free ($10 credits/mo), then from $4 per 1,000 searches
G2 5 (1)
Covers:ChatAgents
Neural web search API and research agent built for AI apps and agents.
Free plan
SciSpace
Solo $12 · Team-5 $60/mo
G2 3.8 (2)
Covers:ChatAgents
AI literature search, paper chat and extraction across 200M+ academic papers.
Free plan
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