Liner vs Perplexity

Liner combines AI search, academic research, and writing tools for professional workflows. Its search answers include citations users can follow, and searches can be limited to a chosen pool of sources. Liner Scholar supports paper discovery, citation following, comparisons across papers, literature reviews, and research hypotheses. Liner Write drafts from a topic, adds citations, edits text with AI, and exports to PDF or DOCX. Free accounts get unlimited Advanced Search and access to Image Generation and Deep Research, but have no agent credits, receive answers with ads, and can upload one file per day up to 25MB. Pro and Max list ChatGPT, Gemini, and Claude model access, with larger upload limits and ad-free search. Liner is available on Android, iOS, macOS, Windows, web, as an extension, and through an API. Pro costs $14.99 a month billed annually; Max costs $29.99 a month billed annually. Team includes a dedicated workspace and excludes team data from AI training.

Perplexity is an answer engine that searches the open web and returns answers with inline citations. It can search files and connected apps alongside the web, and can select among more than 20 leading models, including ChatGPT, Gemini, Claude, and Nemotron. Deep Research conducts searches across many sources and produces a report. Access is available on Android, iOS, macOS, web, and Windows, with an API also listed. The free plan has limited weekly use for simple questions. Pro costs $20 a month and adds Computer, premium data sources, web search, files, apps, model council, and model selection. Max costs $200 a month and offers higher limits for Deep Research, resource generation, file uploads, and monthly video creation. Enterprise Pro is $40 a month per seat; Enterprise Max is $325 a month per seat. Enterprise plans bill by seat, and API use requires separate credits. Perplexity lists more than 400 app connectors.