Packaging change·Apr 1 → Jul 6, 2025·Q2 2025·AI & Machine Learning
Arize Introduces Phoenix Plan: Free Open Source Tier with Unlimited Users and Self-Hosting Options
What changed
Limit increase
AX Pro user capacity increased from 3 users to 5 users
New add-on
Support add-on added for Phoenix plan with dedicated support
Limit increase
AX Pro storage increased from 10GB to 50 GB per 30 days
Feature added
Co-pilot feature added to AX Free as key addition from Phoenix
New plan
AX Free plan added as single developer tier with 1M spans per 14 days and 1 GB storage per 14 days
New plan
Phoenix plan added as free and open source pricing tier with self-hosted deployment and unlimited users
Limit increase
AX Pro trace spans increased from 10K spans to 1M trace spans per 30 days
New add-on
Self-Hosting add-on added for AX Enterprise with high-scale deployments, unlimited orgs & spaces, and Arize DB Data Connect
Before and after
Apr 1, 2025 vs Jul 6, 2025Pulse.
100%
Change 1 of 8 · capacity increased
AX Pro user capacity increased from 3 users to 5 users
Sign in to view the full comparison
See the before/after screenshots and every marked-up change.
Q1 2025 · Arize Renames Pro Plan to AX Pro, Signaling a New Era in Pricing StrategyArize Reduces AX Free Plan Trace Spans by 97.5%, Significantly Impacting Monthly Usage Limits · Q3 2025
More from Arize
Full history →- Week 32, 2026·packagingArize: Signal issue-detection capped for Free (10/mo) and Pro (25/mo)
- Week 25, 2026·packagingArize slashes AX Pro storage from 100 GB to 10 GB
- Week 19, 2026·packagingArize Repositions Phoenix Plan to Target Developer Audience
- Week 15, 2026·improvedArize drops AzureAD from SSO login provider options
- Q1 2026·packagingArize slashes AX Pro spans and storage while doubling retention windows