Liner is an AI agent platform designed to help professionals search, research, and write with more reliable results. The product family includes Liner for everyday search, Liner Scholar for academic research, and Liner Write for professional drafting. Liner Search helps users get accurate, cited answers, review sources with one click, ask follow-up questions, and process complex topics through mind maps. Liner Scholar supports academic workflows by helping users find and compare papers, discover supporting citations, and create literature reviews more quickly. Liner Write helps users move from scattered thoughts to clear documents such as emails, newsletters, reports, proposals, and client updates. The platform is built on precise AI search technology and is designed so users can choose the right agent for their specific task. Liner also offers research-focused agents such as Hypothesis Generator, Hypothesis Evaluator, Citation Recommender, Literature Review, Research Tracer, Survey Generator, Survey Simulator, and Survey Peer Review. Its security and compliance focus is positioned around responsible and safe AI use. By combining cited AI search, academic research tools, document drafting, citation support, research agents, and professional writing workflows, Liner helps users move from information gathering to finished work faster.