Compare Claude Pro vs Copy.ai vs Onyx

Side-by-side comparison of Claude Pro, Copy.ai, Onyx
FeatureClaude ProCopy.aiOnyx
DescriptionAnthropic's powerful AI for analysis, writing, and codingAI copywriting for marketing and salesA 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).
Pricing$20/month$49/monthFree and open source (open-core: some features are paid); self-hosting, model or API costs may apply
Main categoryChat assistantsWritingResearch and notes
WebsiteVisit Claude ProVisit Copy.aiVisit Onyx
Info last checkedOctober 12, 2026October 12, 2026October 13, 2026

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