Compare Duck.ai vs Copy.ai vs Open Notebook
| Feature | Duck.ai | Copy.ai | Open Notebook |
|---|---|---|---|
| Description | Duck.ai is DuckDuckGo private AI chat. It helps you ask questions and draft answers without building an advertising profile around your prompts, so you can get help while keeping everyday browsing privacy habits. | AI copywriting for marketing and sales | An open-source NotebookLM-style app for researching, summarizing and chatting with your sources. Built for: Researchers, writers and learners who want a private NotebookLM alternative. Format: Self-hosted web app (Docker). License: MIT. Open source on GitHub (40,067 stars as of 2026-10-11). |
| Pricing | Free private AI chat (DuckDuckGo Duck.ai) | $49/month | Free and open source; self-hosting, model or API costs may apply |
| Main category | Chat assistants | Writing | Research and notes |
| Website | Visit Duck.ai | Visit Copy.ai | Visit Open Notebook |
| Info last checked | October 14, 2026 | October 12, 2026 | October 12, 2026 |
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