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What is Open Paper?

OpenPaper is a groundbreaking platform powered by AI, specifically designed to transform how researchers engage with, annotate, and understand scholarly articles. It presents a unique dual-pane interface that allows users to read the full text of a paper while simultaneously interacting with an AI assistant. This assistant ensures that the citations provided are trustworthy, thereby enhancing both transparency and dependability. Among its impressive features are tools for inline annotations, audio summaries of research materials, and a discovery mechanism for related studies via OpenAlex. Researchers have the capability to upload their documents, creating a tailored knowledge base, and can seamlessly transition between various AI models, including GPT-4 and Gemini 2.5 Pro. Furthermore, OpenPaper promotes collaborative efforts by enabling users to share their annotations, thus cultivating a community of scholars who work collaboratively to push the boundaries of their disciplines. The combination of these diverse functionalities positions OpenPaper as an invaluable asset for anyone involved in academic research, ultimately aiming to facilitate a deeper understanding of complex literature.

What is Liner?

Liner is a professional AI agent platform that helps users complete search, research, and writing tasks with accurate, source-based results. The platform offers three core products: Liner for everyday search, Liner Scholar for academic work, and Liner Write for professional drafts. Liner Search is designed for users who need reliable answers grounded in real facts, with citations that can be checked in one click. It also supports follow-up questions and mind maps to help users deepen their understanding of complex topics. Liner Scholar is built for academic research workflows, helping users find papers, compare studies, strengthen writing with citations, and generate literature reviews. It is designed for students, PhD candidates, professors, research scientists, and academic users who need paper-based research support. Liner Write helps users search, write, edit, verify, and polish content in one window. It supports professional writing outputs such as emails, newsletters, reports, business proposals, internal updates, and client-facing documents. Liner’s broader agent tools include hypothesis generation, hypothesis evaluation, citation recommendations, literature reviews, research tracing, survey generation, survey simulation, and peer review support. Users can access Liner, Liner Scholar, and Liner Write through one subscription rather than subscribing to each product separately. By combining accurate AI search, cited answers, academic research workflows, literature review tools, professional drafting, editing, verification, and research agents, Liner helps users turn reliable information into high-quality work.

Media

Media

Integrations Supported

GPT-4
ChatGPT
Evernote
GPT-3.5
Gemini 2.5 Flash
Google
Google Chrome
Microsoft Edge
Microsoft OneNote
Microsoft Word
NAVER Whale
Opera
Safari
YouTube

Integrations Supported

GPT-4
ChatGPT
Evernote
GPT-3.5
Gemini 2.5 Flash
Google
Google Chrome
Microsoft Edge
Microsoft OneNote
Microsoft Word
NAVER Whale
Opera
Safari
YouTube

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Version
Free Trial Offered?

Pricing Information

$17.99/month
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Open Paper

Company Location

United States

Company Website

openpaper.ai/

Company Facts

Organization Name

Liner

Company Location

United States

Company Website

liner.com

Categories and Features

Categories and Features

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