- vendor
- Arize AI
- whatItIs
- Open-source AI observability and evaluation platform for agent development with OpenTelemetry-based tracing, evals, datasets, and experiments.
- hosting
- both
- pricingModel
- OSS free; AX Free 25k spans/mo, Pro $50/mo, Enterprise custom
- modelProviders
- agnostic (OTEL-native)
- stateModel
- OpenInference trace + notebooks
- toolModel
- SDK + dashboard + local-first (Jupyter)
- includesBrowser
- false
- includesMemory
- false
- longRunning
- unlimited
- hitlSupport
- false
- observability
- OTEL-based; built-in evals (faithfulness, relevance, hallucination, RAG)
- maturity
- ga
- launched
- 2023
- notes
- Runs locally in Jupyter with zero external dependencies. OpenInference is the vendor-agnostic standard.