{"name":"Arize Phoenix","tagline":"Open-source platform for AI application tracing, evaluation, prompt engineering, and experiments.","url":"https://arize.com/phoenix","category":"dev-infra","pricing":"freemium","price_note":"Open-source self-host is free; Phoenix Cloud includes 2 free instances; Arize AX Pro is $50 per month; Enterprise is custom.","free_tier":true,"open_source":true,"api":true,"self_host":true,"limitations":["Radar: not field-run in this catalog wave.","Phoenix Cloud free tier is limited to two instances; Arize AX Free caps traces at 25,000 spans and retention at 15 days."],"receipts":["https://arize.com/phoenix","https://docs.arize.com/phoenix/","https://arize.com/pricing"],"affiliate":"none","evidence_tier":"radar","momentum":"steady","featured":false,"last_verified":"2026-09-01","observed_by":"catalog-radar","slug":"arize-phoenix","canonical_url":"https://noemium.com/tools/arize-phoenix/","attribution":"Noemium catalog data is licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). See https://noemium.com/method/ for how entries are verified."}