Activeverified July 17, 2026
Arize AX / Phoenix free tier
AX Free includes 25,000 trace spans/month, 1 GB ingestion/month, 15-day retention, unlimited users, and unlimited evaluations. Phoenix is also available as a free self-hosted open-source platform.
25K spans/mo1 GB/moAlways freeUsage-based
Free-tier allowances
- Hosted AX spans
- 25,000 spans per month
- 25,000 hosted AX spans per month.
- Evidence: official pricing page (accessed 2026-09-13)
- Hosted AX ingestion
- 1 GB per month
- One gigabyte of hosted AX ingestion per month.
- Evidence: official pricing page (accessed 2026-09-13)
Requirements and restrictions
Restrictions
- Self-hosted Phoenix requires separate infrastructure; the hosted AX limits do not apply to it.
Provider snapshot
Also serves: observability, agents
Developer experience
AX Free includes 25,000 trace spans/month, 1 GB ingestion/month, 15-day retention, unlimited users, and unlimited evaluations. Phoenix is also available as a free self-hosted open-source platform
Features
- AX Free includes 25,000 trace spans/month, 1 GB ingestion/month, 15-day retention, unlimited users, and unlimited evaluations. Phoenix is also available as a free self-hosted open-source platform.
Core products
Official links and evidence
- Arize AX / Phoenix official pricing page — pricing, accessed 2026-09-13Official source reviewed for the recorded free-tier claim.
- Arize AX / Phoenix official website page — website, accessed 2026-07-17Official provider destination recorded during verification.
Categories
Subcategories: evaluation, observability, agents