Liner
Free tierAccurate AI agents built for smarter work
Free tier available·All audiences·Powered by Multiple providers: OpenAI (ChatGPT), Google (Gemini), Anthropic (Claude)·API available
Key strengths
Cited answers with one-click citation verificationAcademic research with paper finding and literature reviewsAI-powered professional writing and draftingDeep Research for comprehensive topic reportsFile upload and PDF analysisMulti-model support (ChatGPT, Gemini, Claude)AI security and compliance focusMCP/API access for developers
Free tier + paid plans · from $14.99 USD/mo
No ratings yet
Liner — Technical Overview
Liner is a freemium AI productivity platform that orchestrates multiple large language model providers — OpenAI (ChatGPT), Google (Gemini), and Anthropic (Claude) — within a single unified interface. It exposes MCP (Model Context Protocol) and API access for developers who need to integrate Liner's capabilities into custom workflows or tooling.
Key technical characteristics:
- Multi-model architecture: Route queries across ChatGPT, Gemini, and Claude from one interface, enabling model comparison or task-specific selection.
- Cited answer generation: Responses are grounded with verifiable citations, supporting one-click citation verification for source auditability.
- File & PDF ingestion: Upload documents for in-context analysis, enabling RAG-style workflows without custom infrastructure.
- Deep Research mode: Generates comprehensive, structured topic reports suitable for automated research pipelines.
- MCP/API access: Programmatic integration available for developers building on top of Liner's search, research, and writing capabilities.
- Platform coverage: Native clients on iOS, Android, Mac, and Windows; browser extensions for Chrome and Edge.
- Security & compliance focus: AI security controls are a stated platform priority, relevant for enterprise and regulated-environment deployments.
Pricing (developer/team context): Free tier available; Pro at $14.99/month (annual) or $17.99/month; Max at $29.99/month (annual) or $35.99/month; Team at $26.99/seat/month; Enterprise at custom pricing. A single plan covers Liner, Liner Scholar, and Liner Write.