Arize AX
Enterprise AI observability and evaluation platform extending Arize's ML-monitoring heritage to LLM and agent workloads at scale.
| Category | Observability & Tracing |
| Open source | No |
| Self-hostable | Yes |
| Pricing model | freemium |
| Pricing notes | Free tier; Pro and enterprise tiers with custom pricing |
| Framework integrations | openai-sdk, langchain, llamaindex, opentelemetry |
| Funding / ownership | $70M Series C (Adams Street, M12, Datadog; Feb 2025), ~$131M total |
Pricing/feature source: https://arize.com/pricing/