# Arize Phoenix

Source-available AI observability project for tracing model calls, retrieval and tool execution.

- Company: Arize AI
- Category: Platforms & Infrastructure
- Business model: Free
- Availability: unknown
- Launched: Not recorded
- Tags: eval, developer-tools
- Website: https://phoenix.arize.com/
- Documentation: https://arize.com/docs/phoenix
- Pricing page: https://arize.com/phoenix
- License: Not recorded
- Canonical URL: https://globalaiproductindex.com/products/arize-phoenix/
- Record updated: 2026-11-03

Typical uses include Investigation of agent failures; Regression evaluation of AI applications. Documented capabilities: OpenTelemetry traces for LLM and agent steps; Evaluation of outputs and retrieval quality; Inspection of datasets, prompts and experiments.

## Key features

- OpenTelemetry traces for LLM and agent steps
- Evaluation of outputs and retrieval quality
- Inspection of datasets, prompts and experiments

## Use cases

- Investigation of agent failures
- Regression evaluation of AI applications

## Pricing

Phoenix can be run on your infrastructure under Elastic License 2.0; its source availability is not an unrestricted open-source license. Infrastructure and evaluator-model costs are separate, and managed Arize offerings have separate commercial terms.

## FAQ

**Where does Arize Phoenix fit in a workflow?**

Source-available AI observability project for tracing model calls, retrieval and tool execution. OpenTelemetry traces for LLM and agent steps.

**What costs and limits should I compare before choosing Arize Phoenix?**

Phoenix can be run on your infrastructure under Elastic License 2.0; its source availability is not an unrestricted open-source license. Infrastructure and evaluator-model costs are separate, and managed Arize offerings have separate commercial terms.

## Sources

- [Arize Phoenix — official product](https://phoenix.arize.com/)
- [Arize Phoenix — official documentation and terms](https://arize.com/docs/phoenix)
- [Arize Phoenix — official documentation and terms](https://arize.com/phoenix)

---
Data from the [Global AI Product Index](https://globalaiproductindex.com/), licensed CC BY 4.0.