AX Free
Free
- Signal 10 issues per month
- Trace spans 25k spans per month
- Ingestion volume 1 GB per month
- Retention 15 days
- Deployment SaaS
- Users Unlimited
- Evals Unlimited
Overview
Arize AI offers a comprehensive platform designed for AI engineering teams to observe, evaluate, and continuously improve their AI agents and applications. The platform provides end-to-end workflows for debugging agents, understanding their behavior, and measuring quality through robust evaluations.
Components and Functionality
The core offering includes Arize AX, a managed AI engineering platform, and Phoenix, an open-source observability and evaluation tool. Arize AX is built on open standards such as OpenInference and OpenTelemetry, providing advanced agent observability, online evaluations, and continuous improvement workflows. It integrates with over 40 popular AI models, frameworks, and tools, including OpenAI, Anthropic, LangChain, and LlamaIndex. Arize AX supports various cloud environments like Google Cloud, AWS, and Azure, as well as self-hosted deployments, ensuring data security and compliance with standards like SOC 2, ISO 27001, PCI DSS, HIPAA, and GDPR.
Phoenix, the open-source component, allows developers to trace LLM calls, run evaluations, and investigate failures either locally or in self-hosted environments, giving users full control over their data. The platform helps teams identify what their agents actually did, track performance improvements or regressions, and validate the effectiveness of proposed fixes. It is specifically tailored for modern AI applications such as chatbots, RAG systems, copilots, and autonomous agents.
Key features
- Agent observability and evaluation platform
- End-to-end debugging workflows for AI agents
- Infrastructure for self-improving agents
- Alyx: AI engineering agent for automated evals and debugging
- AI-native agent-first debugging for coding agents
- ADB: Datastore for GenAI traces
- Built on open source and open standards (OpenInference, OpenTelemetry)
- Phoenix: Open-source eval and observability tool
Who uses it
AI engineering teams, developers, and data scientists focused on improving AI agents and applications.
Pros
- Offers a comprehensive platform for AI agent observability and evaluation.
- Provides both a managed platform (Arize AX) and an open-source solution (Phoenix).
- Integrates with over 40 popular AI models, frameworks, and tools.
- Built on open standards like OpenInference and OpenTelemetry for broad interoperability.
- Ensures data security and compliance with SOC 2, ISO 27001, PCI DSS, HIPAA, and GDPR.
- Includes an AI engineering agent (Alyx) for automated debugging and improvement tasks.
Cons
- The managed Arize AX platform's pricing is not transparently listed, requiring contact for details.
- Full utilization of the platform requires technical expertise in AI engineering and MLOps.
- The open-source Phoenix tool requires users to handle self-hosting and management.
- No clear free tier for the managed Arize AX platform, primarily offering demos or trials.
Our take
Arize AI provides essential tools for AI engineering teams to manage and enhance the performance of their AI agents in production. Its dual offering of a managed platform and an open-source solution caters to different operational needs and technical preferences.
Pricing plans
AX Pro
$50 per month
- Signal 25 issues per month
- Trace spans 50k spans per month
- Ingestion volume 10 GB per month
- Retention 30 days
- Deployment SaaS
- Users Unlimited
- Evals Unlimited
AX Enterprise
Custom
- Signal Unlimited
- Trace spans Custom
- Ingestion Volume Custom
- Retention Custom
- Deployment SaaS or Self-Hosted
- Users Unlimited
- Evals Unlimited
Pricing details are provided for reference and may differ from the vendor's current plans.
Comments
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