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Arize AX
Enterprise AI observability and evaluation platform extending Arize's ML-monitoring heritage to LLM and agent workloads at scale.
| Category | Observability & Tracing |
| OpenTelemetry-native | Yes — no proprietary-SDK lock-in |
| 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/
Frequently asked questions
Is Arize AX open source?
No — Arize AX is a proprietary/commercial product.
Can I self-host Arize AX?
Yes — Arize AX can run in your own infrastructure.
Is Arize AX OpenTelemetry-native?
Yes — Arize AX speaks OpenTelemetry (OTLP) natively, so there is no proprietary-SDK lock-in.
How much does Arize AX cost?
Freemium. Free tier; Pro and enterprise tiers with custom pricing