Compare Duck.ai vs HIX AI vs Onyx

Side-by-side comparison of Duck.ai, HIX AI, Onyx
FeatureDuck.aiHIX AIOnyx
DescriptionDuck.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.A self-hosted AI chat and search platform that connects to your team's documents and apps. Built for: Small teams who want an AI assistant over their shared knowledge. Format: Self-hosted web app (Docker). License: Open-core: MIT, except ee/ directories (Onyx Enterprise License). Open source on GitHub (32,407 stars as of 2026-10-11).
PricingFree private AI chat (DuckDuckGo Duck.ai)Free plan available; paid plans from about $4.99-$9.99 (confirm current tier names on pricing page)Free and open source (open-core: some features are paid); self-hosting, model or API costs may apply
Main categoryChat assistantsWritingResearch and notes
WebsiteVisit Duck.aiVisit HIX AIVisit Onyx
Info last checkedOctober 14, 2026October 14, 2026October 13, 2026

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