Kortex AI

Kortex AI is a productivity tool designed as an AI-powered second brain that helps writers, creators, and note-takers capture ideas, organize notes, and write better. It combines features of Google Docs, Notion, and Obsidian with AI workflows to synthesize ideas, generate content, and eliminate writer's block. Users can capture ideas, toggle AI assistance for note synthesis, and reference documents and highlights in a distraction-free writing environment. Kortex supports collaboration, document sharing, and integrates with Readwise for highlight management. It offers a free tier with basic AI requests and paid plans starting at $10 per month with advanced AI models and increased storage.