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  4. Mark R
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Mark R

(4.3)

Claim AI Tool
FreePaid Plan - from $8

Platform:

Web, Extension

Best for:

Highlight and Summary Tool for Smarter Reading

Free Trial:

Not Available

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AIChief Verdict
book summarizer

AIChief Rating

(4.3)

Visit Mark R

At AIChief, we tested Mark R and found it to be an incredibly helpful AI tool for anyone dealing with large amounts of text, documents, or online reading. Mark R simplifies the process of highlighting, summarizing, and understanding key content by allowing users to select specific text fields and instantly generate concise, accurate summaries. Powered by GPT-3.5 and GPT-4 models, this Chrome extension offers an effortless way to digest information, whether for research, academic work, or day-to-day reading.Its clean interface, smart usage limits, and affordable pricing tiers make it accessible for students, professionals, and avid readers alike. Mark R succeeds in turning tedious information processing into a streamlined, productive experience.

Features

(4.3)

Accessibility

(4.3)

Compatibility

(4.2)

User Friendliness

(4.4)

Updated November 26, 2025

What is Mark R?

Mark R is an AI-powered content summarization and highlight tool designed to help users process and understand large volumes of text more efficiently. It works directly within the browser, allowing users to highlight text and instantly receive concise summaries or explanations using advanced AI models like GPT-3.5 and GPT-4. The tool is particularly useful for students, researchers, content writers, and busy professionals who need to absorb information quickly without manually reading through long documents. Mark R offers flexible daily usage calls, customizable text field limits, and a simple subscription model, making it a reliable assistant for smarter, faster reading.

Mark R Review Summary
Performance Score
A
Content/Output Quality
Accurate, Well-Summarized
Interface
Chrome Extension, User-Friendly
AI Technology
  • GPT-3.5
  • GPT-4
  • Text Summarization AI
Purpose of Tool
Summarize and highlight content with AI-powered precision
Compatibility
Web-Based, Chrome Extension
Pricing
Free plan + Paid plans starting from $8/month

Who is Best for Using Mark R?

  • Anyone: Needing quick, AI-generated summaries for reading online content, documents, and research materials.
  • Students: Managing academic reading, note-taking, and study summaries with minimal effort.
  • Researchers: Analyzing long reports, articles, or papers who need to highlight and summarize key points fast.
  • Content Creators: Streamlining their research workflow by summarizing source material efficiently.
  • Professionals: Reducing time spent reading reports, emails, or complex documents with smart text summarization.
Mark R Key Features
AI-Powered Content Summarization
Highlight and Summarize Selected Text
Supports GPT-3.5 and GPT-4 Models
Character-Based Usage Limits
Chrome Extension for Easy Integration
Customizable Text Field and Output Limits
Simple Subscription and Upgrade Options
Multi-Level Daily Call Access

Is Mark R Free?

Yes, Mark R offers a free plan alongside affordable paid options. Below is the breakdown of available plans:

  • Free Plan � $0 Per Month
    • 15 calls per day
    • 2000 highlighted characters
    • 500 text field characters
    • GPT-3.5 AI model
    • Output characters: 1000
  • Standard Plan � $8 Per Month
    • 100 calls per day
    • 2500 highlighted characters
    • 700 text field characters
    • GPT-3.5 and GPT-4 AI models
    • Output characters: 1200
  • Pro Plan � $12 Per Month
    • 150 calls per day
    • 5000 highlighted characters
    • 1500 text field characters
    • GPT-3.5 and GPT-4 AI models
    • Output characters: 2000

Mark R Pros & Cons

Pros
Free plan available for light users and testing
Supports both GPT-3.5 and GPT-4 models for flexible summarization
Easy to use directly within the browser via Chrome extension
Clear daily usage limits suitable for different user needs
Affordable pricing, especially for students and researchers
Cons
Limited daily calls and character counts in free and lower-tier plans
Currently only available as a Chrome extension�no standalone app
No team collaboration or sharing features
Requires manual text highlighting for summaries
Advanced summarization may consume more credits quickly

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FAQs

Can I use Mark R without a subscription?

Yes, Mark R provides a Free plan with limited daily usage. Paid plans unlock higher call limits and additional features.

Does Mark R support GPT-4 for all users?

GPT-4 access is available in the Standard and Pro plans. The Free plan uses GPT-3.5 only.

Is Mark R available outside of Chrome?

Currently, Mark R operates as a Chrome extension. There is no standalone app or support for other browsers at this time.

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