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Arize Phoenix vs Lunary: catalog facts
Arize Phoenix	Lunary
Freemium Phoenix is free to self-host; Arize AX is a separate managed paid platform.	Paid Team plan is $20 per user per month, with payment required to activate a workspace.
Web, Self-hosted	Web
Tracing, evals, prompts and experiments in one tool Runs locally, in Docker or on Kubernetes	Real-time analytics on chatbot quality and user behaviour Prompt management separate from application code
Source-available license rather than an OSI-approved one Some advanced features are in the separate paid Arize AX product	No free plan shown; payment required to start Hosted service sends app data to Lunary
Self-hosted, Hosted service	Hosted service
Closed source	Closed source
License: Elastic-2.0	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.