Arize Phoenix
Arize Phoenix
What is Arize Phoenix?
See where LLM apps fail and fix them with open source tracing evaluation clustering and an optional hosted service
Key Capabilities
What makes Arize Phoenix powerful
Spans and Context
Capture prompts tools outputs latencies and metadata as traces to understand context and cost across sessions.
Built in and Custom
Run relevance faithfulness and safety checks or plug your own metrics to compare models and prompts.
Clustering and Search
Group similar failures or topics to find root causes and prioritize fixes instead of chasing anecdotes.
Hosted AX
Use the SaaS plan for higher limits retention multi user access and guided workflows via Alyx.
Professional Integration
These capabilities work together to provide a comprehensive AI solution that integrates seamlessly into professional workflows. Each feature is designed with enterprise-grade reliability and performance.
Key Features
What makes Arize Phoenix stand out
- Open source tracing and evaluation built on OpenTelemetry
- Span capture for prompts tools model outputs and latencies
- Clustering to reveal failure patterns across sessions
- Built in evals for relevance hallucination and safety
- Compare models prompts and guardrails with custom metrics
- Self host or use hosted AX with expanded limits and support
- Alyx co pilot to guide debugging in the hosted plan
- REST and Python SDKs with notebooks and quickstarts
Use Cases
How Arize Phoenix can help you
- Trace and debug RAG pipelines across tools and models
- Cluster bad answers to identify data or prompt gaps
- Score outputs for relevance faithfulness and safety
- Run A B tests on prompts with offline or online traffic
- Add governance with retention access control and SLAs
- Share findings with engineering and product via notebooks
- Start self hosted then move heavy traffic to hosted AX
- Educate teams on failure modes with concrete traces
Perfect For
ml engineers data scientists and platform teams building LLM apps who need open source tracing evals and an optional hosted path as usage grows
Pricing
Start using Arize Phoenix today
Starting price
Quick Information
Compare Arize Phoenix with Alternatives
See how Arize Phoenix stacks up against similar tools
Frequently Asked Questions
How does pricing start?
Can I use Phoenix without SaaS?
What limits exist in the free hosted tier?
Does Phoenix support OpenTelemetry?
Can I bring custom evaluators?
Is there a co pilot or assistant?
How do I compare prompts or models?
Do you offer enterprise support?
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