Phoenix
AI observability and evaluation from Arize
About
Phoenix from Arize is an open-source observability and evaluation platform for LLM and agent applications. It captures OpenTelemetry-style traces, runs evaluations against the captured data, and visualizes prompt-response pairs, embeddings, and metrics in a local UI. Auto-instrumentation covers OpenAI, Anthropic, Google GenAI, Bedrock, LangGraph, Vercel AI SDK, CrewAI, LlamaIndex, DSPy, and others. Self-host via Docker or use Arize's hosted edition.
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Details
- Category
- AI Observability & Evaluation
- Price
- Free
- Platform
- Hybrid
- Difficulty
- Easy (2/5)
- License
- Elastic-2.0
- Added
- Jan 29, 2026
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