Phoenix - AI Observability Platform

Open-source AI observability and evaluation platform for LLM applications with tracing, evaluation, datasets, experiments, and real-time monitoring.

When to use Phoenix

Use Phoenix when:

• Debugging LLM application issues with detailed traces
• Running systematic evaluations on datasets
• Monitoring production LLM systems in real-time
• Building experiment pipelines for prompt/model comparison
• Self-hosted observability without vendor lock-in