Arize AI
AI observability platform with tracing, evaluation, and monitoring for LLM and ML applications
Arize AI provides observability and evaluation tools for LLM and traditional ML applications. For LLM apps it offers tracing, prompt tools, built-in evaluators and integrations with frameworks like LangGraph, LlamaIndex, CrewAI and DSPy. For ML models it monitors drift, bias and data quality. Arize also maintains Phoenix, a source-available (Elastic License 2.0) observability library. The AX free plan includes 25,000 trace spans a month; Pro is $50/month. Dynatrace completed its acquisition of Arize in October 2026.
Pricing: Free / monthly subscriptions
Choosing an LLM observability tool right now?
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Choosing an LLM observability tool right now?
One click, anonymous. Helps us know our visitors.
Thanks, that helps.
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