About
What is Phoenix Arize?
Phoenix Arize is an open-source platform designed for tracing and evaluating Large Language Models (LLMs) and AI applications. It enables developers and data scientists to seamlessly instrument, experiment with, and optimize their AI products in real time. The platform leverages OpenTelemetry (OTEL) for easy setup, full transparency, and to avoid vendor lock-in, allowing users to start, scale, or move without restrictions. Key features include application tracing for total visibility, an interactive prompt playground for iteration, streamlined evaluations with pre-built templates and human feedback, and dataset clustering for identifying performance issues. Phoenix Arize is fully open source and self-hostable, offering flexibility and control over AI observability.
Best used for
Ideal for developers and data scientists who need to monitor, evaluate, and optimize their LLM-powered applications, debug AI workflows, and experiment with different prompts. Especially valuable for teams seeking an open-source, flexible, and vendor-lock-in-free solution for AI observability.
Common actions
AI developmentdata tracingAI observabilityMLOpsopen-sourceLLM monitoringML debuggingmodel evaluation
Capabilities
Key features
- LLM tracing and evaluation
- OpenTelemetry integration
- Interactive prompt playground
- Streamlined evaluations
- Dataset clustering
- Self-hostable
- Framework-agnostic
Target Audience
developerdata scientiststartup founder
Integrations
llama-indexlangchainopenaimistralgoogle-vertex-aidspyaws-bedrockguardrails-ai+ 2 more
Pricing & Plans
Free · Freemium · Paid · Enterprise · Open Source
FAQs
What is the difference between Phoenix (Open Source) and Arize AX (SaaS)?
Phoenix is the self-hosted, open-source version offering core tracing and evaluation. Arize AX is a SaaS platform built on Phoenix, providing additional features like Alyx (Arize agent), online evals, product observability, and dedicated support, with different pricing tiers based on usage.
Does Phoenix Arize support integrations with popular LLM frameworks?
Yes, Phoenix Arize is designed to be framework-agnostic and integrates with many popular LLM tools and frameworks. This includes LlamaIndex, Langchain, OpenAI, Mistral, Google Vertex AI, DSPy, AWS Bedrock, Guardrails AI, Haystack, and CrewAI.
Can I self-host Phoenix Arize, or is it only available as a cloud service?
Phoenix Arize is proudly open source and fully self-hostable, allowing users complete control and flexibility. There is also a cloud-based SaaS offering, Arize AX, for those who prefer a managed service with additional features.
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