AI Tool

Cosminds Review

Cosminds is an AI tool that helps users organize their knowledge by transforming various content types into actionable insights.

shipped Aug 11, 2026writingfreemium

writingresearch

Why it matters

1Cosminds offers a freemium model with a Free Plan, a Pro Plan at $10/month, and a Scholar Plan at $25/month.

2The Free Plan includes 32 AI credits to start, then 8 credits per week, allowing processing of approximately 2 sources weekly.

3Cosminds processes content from book highlights, PDFs, EPUBs, YouTube videos, web articles, and personal notes.

4It features an AI Wiki that answers questions exclusively from the user's saved library, complete with source citations.

About Cosminds

Business Model

Subscription SaaS

Usage Pricing

about 4 credits per source

Free Credits

32 AI credits to start

Founded

2026

Platforms

Web

Target Audience

Anyone who consumes content seriously.

Pricing Plans

Free

$0 / monthly

• 32 credits to start, then 8 a week
• 2 sources a week
• 1 learning plan at a time
• Unlimited drilling and storage

Pro

$10/mo

• 20 credits a week
• 5 sources a week
• Unlimited learning plans
• Unlimited drilling and storage

Scholar

$25/mo

• 50 credits a week
• 12 sources a week
• Unlimited learning plans
• Unlimited drilling and storage

Cost Examples

• Average source costs about 4 credits
• Wiki question is 1 credit

Leadership

WojtekFounderLinkedIn

Screenshots

overview

What is Cosminds?

Cosminds is an AI-powered knowledge-retention tool developed by Wojtek that enables users to remember and apply what they learn by organizing information by idea rather than by source. It processes various content types, including book highlights, PDFs, EPUBs, YouTube videos (via captions), web articles, and personal notes, transforming them into recallable ideas. The tool functions as a "second brain" that automatically organizes learned content by concept, facilitating active recall and long-term retention of information. Users can "forge" any source by pasting highlights, transcripts, or notes, and Cosminds extracts and proposes insights, which users then approve, edit, or reject. It builds an "AI Wiki" that answers questions exclusively from the user's saved library, providing citations to original sources and preventing AI hallucination by stating when a topic hasn't been covered in the user's input. Unlike traditional note-taking apps, Cosminds groups related ideas across multiple sources, allowing users to see how different pieces of information connect.

features

Key Features of Cosminds

Cosminds integrates several features designed to enhance knowledge retention and organization, focusing on active learning and personalized knowledge management. These capabilities include processing diverse content types and providing structured recall mechanisms.

Forge any source by uploading files (PDFs, EPUBs) or pasting links (YouTube, web articles) and written texts.
Approve, edit, or reject AI-generated ideas and insights from processed content.
AI Wiki that answers questions exclusively from the user's saved insights, with citations to original sources.
Active recall system with a three-round drill process where users write ideas from memory.
Spaced repetition algorithm to schedule ideas for review once they are mastered.
Idea-centric organization that groups related concepts across multiple sources, rather than by document.
Support for sources up to 150,000 characters in the Scholar Plan.
Privacy and ownership of user knowledge are assured, with data stored securely.

use cases

Who Should Use Cosminds?

Cosminds is designed for individuals who actively engage with content and seek to improve their long-term knowledge retention and application. Its features cater to various learning and professional needs.

Book Readers: To extract and organize key ideas from books, ensuring better recall of learned concepts.
YouTube Learners: To process video captions and turn educational content into actionable insights and reviewable ideas.
Students: For active learning, preparing for exams, and building a comprehensive knowledge base from course materials.
Founders & Researchers: To manage and synthesize information from diverse sources, connecting ideas for innovation and project development.
Professionals: To retain and apply industry knowledge, organize research, and build a personalized AI-powered reference library.

how to use

How to Use Cosminds

Using Cosminds involves a structured process of inputting content, reviewing AI-generated insights, and engaging with the platform's recall and organization features to build a personalized knowledge base.

1Step 1: Forge a Source: Paste written text, a web link, or upload a file (PDF, EPUB) into the Cosminds platform.
2Step 2: Review Ideas: The AI processes the content and generates a list of potential ideas or insights. Users review these suggestions.
3Step 3: Approve or Reject: Users explicitly approve, edit, or reject each generated idea, curating their knowledge base.
4Step 4: Engage in Active Recall: Utilize the spaced repetition system to drill on approved ideas, writing them from memory.
5Step 5: Query the AI Wiki: Ask questions to the AI Wiki, which provides answers exclusively from the user's curated knowledge, citing original sources.
6Step 6: Organize and Connect: Leverage the idea-centric organization to see connections between concepts across different sources.

pricing

Cosminds Pricing & Plans

Cosminds operates on a freemium model with three distinct plans: Free, Pro, and Scholar. Pricing is based on a credit system for AI processing, with unused credits not carrying over to the next week. Payment for paid plans is handled by Stripe.

Free Plan: $0 per month. Includes 32 AI credits to start, then 8 credits per week (approx. 2 sources/week). Offers 1 learning plan, unlimited drilling and storage, AI Wiki, and standard depth processing for sources up to 15,000 characters.
Pro Plan: $10 per month. Provides 20 credits per week (approx. 5 sources/week). Includes unlimited learning plans, drilling, and storage, AI Wiki, and standard depth processing for sources up to 60,000 characters.
Scholar Plan: $25 per month. Offers 50 credits per week (approx. 12 sources/week). Includes unlimited learning plans, drilling, and storage, AI Wiki, and exhaustive depth processing for sources up to 150,000 characters.

Pros

+Facilitates active recall and long-term knowledge retention through spaced repetition and drilling.
+Organizes knowledge by idea across multiple sources, promoting conceptual understanding.
+AI Wiki provides answers exclusively from user's curated content, with citations, preventing AI hallucination.
+Supports diverse content inputs including PDFs, EPUBs, YouTube videos, web articles, and personal notes.
+Offers a freemium model, allowing users to test core functionalities with 32 initial AI credits and 8 weekly credits.

Cons

−Credit-based system for AI processing may limit extensive use on free and lower-tier plans.
−Unused credits do not carry over weekly, potentially leading to underutilization for inconsistent users.
−No offline access or desktop application, as it is a web-based platform.
−Limited information available on independent user reviews or testimonials as of July 2026.
−Maximum source character limits (15,000 to 150,000) may restrict processing of extremely long documents on lower tiers.

Similar Tools

Cosminds vs Competitors

Cosminds differentiates itself in the knowledge management and AI summarization landscape by focusing on active recall and idea-centric organization, contrasting with tools that prioritize summarization or document-based note-taking.

QuillBot SummarizerOn Stork

Focuses on quickly condensing articles, reports, or documents into key points with customizable output styles (bullet points or paragraphs) and length.

While Cosminds aims for broader knowledge organization and idea management, QuillBot is primarily a summarization tool for individual pieces of content. It lacks the explicit workflow for reviewing, approving, or rejecting generated ideas.

ManusOn Stork

Analyzes documents (PDFs, Word, text) to identify main arguments, supporting evidence, and logical flow, creating structured summaries that preserve meaning and context.

Manus emphasizes a deeper understanding of content to generate more coherent and context-rich summaries from various document types, similar to Cosminds' insight generation. However, Cosminds provides a more explicit interface for users to review, approve, or reject the generated ideas as part of a knowledge organization workflow.

NotebookLM↗

Ingests multiple documents and uses AI to generate summaries, study guides, timelines, and mind maps of main concepts, allowing custom prompts for specific insights.

NotebookLM excels at processing multiple sources and generating diverse, structured outputs for knowledge organization, which is a significant advantage over Cosminds for multi-document research. While it provides powerful insight generation, it may not have the same explicit 'review, approve, or reject' idea management workflow as Cosminds.

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