Compare AnythingLLM vs ProWritingAid vs Onyx

Side-by-side comparison of AnythingLLM, ProWritingAid, Onyx
FeatureAnythingLLMProWritingAidOnyx
DescriptionA desktop or Docker app for chatting with your own documents using local or cloud AI models. Built for: Solopreneurs and small teams who want an AI assistant that knows their own files. Format: App (desktop + Docker). License: MIT. Open source on GitHub (66,944 stars as of 2026-10-11). Privacy note: Anonymous telemetry is on by default; you can turn it off in the Privacy settings or with DISABLE_TELEMETRY=true.ProWritingAid helps writers improve grammar, style, and story structure with reports and AI rewrites. A free tier lets you start, and Premium plans add deeper critique tools for people finishing books and long documents.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 and open source; self-hosting, model or API costs may applyFree tier available; Premium about $30/mo monthly or $10/mo billed yearly ($120); Premium Pro about $36/mo monthly or $12/mo yearly; lifetime options listedFree and open source (open-core: some features are paid); self-hosting, model or API costs may apply
Main categoryLocal and open-source modelsWritingResearch and notes
WebsiteVisit AnythingLLMVisit ProWritingAidVisit Onyx
Info last checkedOctober 12, 2026October 14, 2026October 13, 2026

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