Liner vs Perplexity

Liner

• People who want every line of an AI answer tied to a source
• Students drafting a literature review or looking for citations
• Users who want search, research and writing on one subscription
• Small teams: the Team plan covers 2 to 20 members

Perplexity

• Research questions where you want the sources behind each answer
• Follow-up questions that build on an earlier search
• Quick, current answers by voice or text on a phone

Liner

• The free plan shows ads in answers and allows 1 file upload a day; the plan table lists 0 agent credits for it, though the FAQ mentions limited credits.
• Agents and external models spend credits: Pro includes 1,000 and Max 2,500, and one Literature Review request uses 40.
• The site's FAQ says Liner Scholar and Liner Write are supported only on desktop.
• Liner does not offer refunds; a subscription can be canceled before it renews.

Perplexity

• The plans page quotes annual-billing prices only: Pro at $17 and Max at $167 a month. The US App Store lists monthly subscriptions at $20.00 for Pro and $200.00 for Max.
• Pro and Max are described as for personal use only.
• Credits are sold separately in packs from $5.00 for 500 to $50.00 for 5,000.

Liner

Cited answers

Answers carry a citation on each line that opens the source. Follow-up questions continue the thread, and an answer can be turned into a mind map.

Deep Research

Gathers information on a topic and returns it as an organized report while showing its line of reasoning. Each request uses 40 agent credits.

Liner Scholar agents

Agents for academic work include Literature Review, Citation Recommender, Research Tracer, Hypothesis Generator and Peer Review. Each request costs between 30 and 80 credits.

File uploads

Upload papers and PDFs to get summaries and ask questions about them: 1 file a day on Free, 20 a day on Pro and unlimited on Max.

Liner Write

A writing workspace that drafts from a topic, shapes ideas into emails, newsletters and reports, and lets you search and edit in the same window.

Search API and MCP

Developers can call Liner's search and answer agents through an API, and MCP servers expose its web search and scholar search to other AI agents.

Perplexity

Cited answers

Responds to questions with answers drawn from current web content and lists the sources used for each one.

Pro Search and Deep Research

Guided AI search modes for exploring a question in more depth than a single answer.

Thread follow-ups

Ask follow-up questions in the same thread so later answers build on earlier ones. Past threads are kept in your Library.

Assistant

Handles tasks such as drafting emails, scheduling appointments and booking reservations.

Perplexity Labs

Turns a request into a finished report or project rather than a short answer.

Voice

Ask questions by speaking instead of typing and get up-to-date answers back.

Liner

• Free$0

  Unlimited Advanced Search with ads in the answers, 1 file upload a day of up to 25 MB and 10 Research Assistant uses a day.

• Pro$14.99

  per month, billed annually; $17.99 billed monthly

  1,000 agent credits, 20 file uploads a day of up to 100 MB, ChatGPT, Gemini and Claude models, and no ads. Covers Liner, Liner Scholar and Liner Write.

• Max$29.99

  per month, billed annually; $35.99 billed monthly

  Everything in Pro with 2,500 agent credits and unlimited file uploads of up to 200 MB each.

• Team$26.99

  per seat / month

  For 2 to 20 members: everything in Max plus central billing, a workspace with admin controls and team data excluded from AI training.

• EnterpriseCustom

  Everything in Team plus a dedicated manager, onboarding sessions, audit logs and higher discount rates.

Perplexity

• Free$0

  Cited answers, follow-up threads, a library of past searches and sync across devices.

• Pro$17

  per month, or equivalent, when billed annually

  Deep research, a choice of AI models, expanded Computer access, document and app creation, and higher usage limits and memory.

• Max$167

  per month, or equivalent, when billed annually

  Everything in Pro with the highest usage limits, 10,000 monthly credits, frontier models and priority access to new features.

• EnterpriseCustom

  Listed alongside Pro and Max on the plans page; pricing is not shown.

Liner

• Annual discount

  Lower monthly rate with annual billing

  The pricing page labels annual billing as saving 20%. Pro is $14.99 a month billed annually against $17.99 monthly, and Max is $29.99 against $35.99, about 17% less.

Perplexity

• Annual discount

  Lower monthly cost with annual billing

  Perplexity's plans page prices Pro at the equivalent of $17 a month when billed annually; the US App Store lists the monthly subscription at $20.00.