
Arize AX
Share
AI agent observability platform to evaluate performance and detect production failures, optimizing results through trace analysis.
What is Arize AX?
Arize AX is an AI agent observability platform designed to facilitate the continuous improvement of applications based on large language models (LLMs). Unlike traditional monitoring tools focused on human-centric dashboards, this solution evolves toward agent-driven execution, allowing technical teams to identify and resolve issues at the same pace their autonomous systems operate. Its primary function is to transform behavior detected in production into actionable data to constantly optimize agent performance.
Arize AX technology utilizes an agentic evaluation approach through the Agent-as-a-Judge system. This architecture learns from telemetry to create scalable evaluations that detect unknown failures and execution bottlenecks. The system integrates natively with Phoenix, its open-source and local execution platform, enabling LLM application tracing, experimentation, and prompt iteration privately before scaling to cloud production environments.
The tool's core capabilities are structured into the following functional modules:
- Signal: Automatically identifies relevant events and root causes of errors, generating solution proposals ready for review. This prevents developers from having to manually analyze thousands of traces.
- Managed Agents: Enables the use of guided templates to investigate failed traces, fix errors directly in the repository, or automate recurring checks using specialized agents.
- Swarm Observability: Provides real-time monitoring of agent swarms, tracking the status and performance of multiple agents collaborating with one another.
- End-to-End Experimentation: Facilitates running tests to validate system changes, allowing for version comparisons to ensure that updates improve overall behavior.
For development teams and enterprises managing business-critical AI applications, Arize AX provides a robust infrastructure to understand the lifecycle of their models. It is an essential tool for those seeking precise agent evaluation metrics and AI agent analysis solutions that exceed the capabilities of conventional human oversight. By automating the detection of critical signals, the platform reduces debugging times and guarantees more efficient prompt iteration, ensuring agents operate reliably in complex environments.
Arize AX features and use cases
How to use Arize AX
Arize AX FAQ
What is Arize AX and what are its benefits for my team?
It is an observability platform that improves AI agents by analyzing their production behavior to transform them into more efficient systems.
How does the Arize AX Signal feature help resolve issues?
This feature automatically identifies the most critical failures and their root causes, generating quick fixes that teams can review and implement without wasting time.
Is there a free version of Arize AX available?
Yes, the free plan allows you to process up to 25,000 trace spans per month and manage 10 issues through the Signal tool at no cost.
What is the relationship between Arize AX and the Phoenix tool?
Phoenix is the open-source version used for local prompt experimentation, while the main platform provides advanced cloud-based observability capabilities.
What is Swarm Observability and what is its purpose?
It is a feature designed to monitor the performance and health of multiple agents simultaneously and in real time within the same ecosystem.
Does Arize AX support automated agent evaluations?
Yes, it utilizes a continuous evaluation system that learns from telemetry to detect unknown failures and validate changes made to language models.
How many users can access an Arize AX account?
The platform does not limit the number of users on any of its plans, which facilitates seamless collaboration across the entire development team.
Does Arize AX offer self-hosting options?
The Enterprise plan supports self-hosted deployment for companies that need to maintain full control over their infrastructure and data privacy.
Arize AX pricing and plans
AX Free
Price: Free (no credit card required).
- Signal: 10 incidents per month.
- Trace spans: 25,000 spans per month.
- Ingestion volume: 1 GB per month.
- Data retention: 15 days.
- Deployment: SaaS.
- Users: Unlimited.
- Evaluations (Evals): Unlimited.
AX Pro
Price: $50 per month.
- Signal: 25 incidents per month.
- Trace spans: 50,000 spans per month.
- Ingestion volume: 10 GB per month.
- Data retention: 30 days.
- Deployment: SaaS.
- Users: Unlimited.
- Evaluations (Evals): Unlimited.
AX Enterprise
Price: Custom (demo required).
- Signal: Unlimited.
- Trace spans: Custom.
- Ingestion volume: Custom.
- Data retention: Custom.
- Deployment: SaaS or Self-hosted.
- Users: Unlimited.
- Evaluations (Evals): Unlimited.
- Special pricing for startups available.
Arize Phoenix
Price: Free (Open source).
- Local platform for tracing, evaluation, experimentation, and prompt iteration.
- Seamlessly migrate to Arize AX based on your scaling needs.
Arize AX Screenshots

Arize AX alternatives

Confident AI
LLM evaluation platform to test AI workflows, measure quality metrics, and automate testing in the development cycle without relying on engineering.

StellarFirm
AI agents for founders to plan, build, and launch apps or websites. Automate technical and management tasks under your direct supervision and approval.

Image to 3D
Convert 2D images and sketches into textured 3D models using AI. Export in GLB, STL, or USDZ for video games, 3D printing, and augmented reality.



