Liner

Meet Liner

Liner is an AI search and research tool that turns questions into answers with links to their sources. You can review citations, ask follow-up questions, and use Deep Research to bring a complex topic together in a structured report. Source collections let you focus a conversation on selected material, while mind maps and flowcharts offer another way to understand connections between ideas.

Students, researchers, and professionals can use it to find relevant papers, investigate unfamiliar subjects, or check evidence before preparing a report. The wider Liner service also includes dedicated Scholar and Write tools for academic work and document drafting. A free plan provides an entry point, with paid plans offering higher usage limits and additional model access.