A
Arize
46
Stack Score
Editorial pick✓ Verified working
Arize
ML + LLM observability for production.
Try Arize✓ Free trial available
Best for
Best for ML + AI engineering teams running production models at scale.
At a glance
- Pricing
- freemium
- Setup time
- 30 minutes
- Learning curve
- moderate
- Last verified
- 5/26/2026
What we love
- ✓Strong enterprise governance
- ✓OSS Phoenix free for individuals
- ✓Wide ML model support
Where it falls short
- −Enterprise pricing on full platform
- −Best with ML/AI team
- −Setup needs effort
Pricing
✓ Pricing verified Jun 21, 20262 tiers
Phoenix OSS
$0
perpetual
- ✓Self-host
Arize AX
Custom
annual
- ✓Enterprise platform
Overview
Arize AI is an enterprise ML + LLM observability platform — Phoenix OSS tracing, production ML monitoring, drift + bias detection.
Key features
- ●Phoenix OSS LLM tracing
- ●Production ML monitoring
- ●Drift + bias detection
- ●Fairness analytics
- ●SOC 2 + on-prem
Best use cases
Production ML monitoring
Monitor production ML models for drift + bias.
LLM-app evals
Use Phoenix for OSS LLM tracing + eval workflows.
Integrations
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