Compare Duck.ai vs HIX AI vs Capacities
| Feature | Duck.ai | HIX AI | Capacities |
|---|---|---|---|
| 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. | HIX AI helps you draft articles, emails, and chat replies with a suite of writing tools. A free plan is available without a credit card, and paid plans unlock higher limits for people who create content regularly. | Capacities is a notes and knowledge app built around objects and daily notes. The Basic plan stays free, and Pro adds AI assist so you can explore and connect ideas while keeping ownership of your knowledge base. |
| Pricing | Free private AI chat (DuckDuckGo Duck.ai) | Free plan available; paid plans from about $4.99-$9.99 (confirm current tier names on pricing page) | Basic free forever; Pro about $9.99/mo; Believer from about $12.49/mo |
| Main category | Chat assistants | Writing | Research and notes |
| Website | Visit Duck.ai | Visit HIX AI | Visit Capacities |
| Info last checked | October 14, 2026 | October 14, 2026 | October 13, 2026 |
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