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arize.com

LLM observability platform — monitor, trace, and evaluate your AI agents and language models in production

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arize.com
Verified API available Free tier ~17k monthly visits
What is it LLM observability platform — monitor, trace, and evaluate your AI agents and language models in production
Pricing Freemium — from $50/mo
Free tier Yes
Platform Web Application
API Yes
Best for monitoring production AI systems, debugging model performance issues
Domain registered 2002

Data updated Aug. 1, 2026

What does arize.com do?

Arize is an observability platform designed specifically for teams building with large language models and AI agents. It gives you a comprehensive view of how your AI systems are performing in real-world use, tracking everything from response quality and latency to cost per query and error rates. Think of it like a dashboard for your AI—showing you exactly what's working and what's breaking when users interact with your models.

The platform stands out by offering deep tracing capabilities that let you follow the entire chain of an AI agent's reasoning process. You can see each step the model took, compare different versions side-by-side, and set up automatic evaluations to catch problems before users do. It integrates with popular AI frameworks and provides ready-made metrics for common issues like hallucination, toxicity, and relevance.

This tool is essential for AI engineers, product managers, and ML ops teams who need to maintain reliable AI applications. It's particularly valuable for companies running customer-facing chatbots, content generation tools, or complex agent workflows where performance directly impacts user experience and business outcomes.

Monitor
#agent tracing#ai monitoring#llm observability#model evaluation#performance tracking#production ai

Key features

What makes it stand out
01
End-to-end tracing of AI agent reasoning chains
02
Automatic evaluation for hallucination, toxicity, and relevance
03
Performance monitoring for latency, cost, and errors
04
Side-by-side comparison of different model versions
05
Integration with popular AI frameworks and platforms

Who is arize.com for?

Who benefits most from this tool
monitoring production AI systems
debugging model performance issues
evaluating AI response quality

Pricing

Free tier available — start without a credit card

Phoenix

Custom
  • User managed projects
  • User managed retention
  • User managed trace spans
  • User managed ingestion volume
  • Self-Hosted
  • Open Source
  • Trace spans
  • Ingestion volume
  • Projects
  • Retention

AX Free

Custom
  • 7 days retention
  • 25k per month trace spans
  • 1 GB per month ingestion volume
  • Alyx (Arize agent)
  • Online evals
  • Product observability
  • Community support

AX Pro

$50.0/month

Everything in AX Free, plus:

  • 15 days retention
  • 50k per month trace spans
  • $3 per GB additional GB
  • $10 per million additional spans
  • 10 GB per month ingestion volume
  • Higher rate limits
  • Longer retention
  • Email support

AX Enterprise

Custom

Everything in AX Pro, plus:

  • Custom projects
  • Configurable retention
  • Custom trace spans
  • Custom ingestion volume
  • Dedicated support
  • Uptime SLA
  • Custom data limits
  • SOC2 reports and HIPAA
  • Training sessions
  • DataFabric Connect

Trust & presence

Domain Domain registered 2002

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