Arize AX / Phoenix Free tier
LLM observability
Free tier
AX Free
25k spans/mo; 1 GB/mo; 10 issues/mo; no card. Phoenix is open source
Gotchas
None stated in the plan summary we recorded. Read the pricing page’s fine print.
Get alerted when Arize AX / Phoenix changes its pricing
We re-check Arize AX / Phoenix’s pricing page every week. The newsletter tells you the moment its free tier or prices move.
Change timeline
- Baseline snapshot of pricing page saved and plan verified.