Best AI Observability Tools
Compare 6 top-rated ai observability tools. Find features, pricing, pros, cons, and alternatives.
🏆 Top Tools in This Category
Arize Phoenix
🔴DeveloperPhoenix is Arize's open-source LLM observability project, and it has quietly become the default way tens of thousands of teams see what their agents are actually doing in production. The pitch is simple: `pip install arize-phoenix`, instrument with OpenInference (or any OpenTelemetry-compatible library), and every LLM call, tool invocation, retrieval,...
Keywords AI / Respan
🔴DeveloperLLM monitoring and gateway platform for AI applications
LangSmith
🔴DeveloperLangSmith is LangChain's commercial observability, evaluation and prompt management platform for LLM apps and agents in production.
Latitude
🔴Developeran open-source AI agent monitoring and observability platform for understanding what agents do in production.
PandaProbe
🔴DeveloperOpen-source AI agent engineering platform for tracing, evaluating, and debugging agent runs across any framework and LLM provider.
AI Observability tools
Arize Phoenix
🔴DeveloperPhoenix is Arize's open-source LLM observability project, and it has quietly become the default way tens of thousands of teams see what their agents are actually doing in production. The pitch is simple: `pip install arize-phoenix`, instrument with OpenInference (or any OpenTelemetry-compatible library), and every LLM call, tool invocation, retrieval, and embedding shows up as a spanned timeline you can filter, search, and replay. No vendor account required, no proprietary SDK lock-in. The Open
Key Features:
- •LLM Tracing & Observability
- •Evaluation Framework
- •Experiment Management
Open Source $0, Arize Cloud (Phoenix) Free / paid tiers, Arize AX (Enterprise) Custom
Keywords AI / Respan
🔴DeveloperLLM monitoring and gateway platform for AI applications
Key Features:
Custom
Laminar
🔴DeveloperAI tracing and evaluation platform for LLM products and agents
Key Features:
Custom
LangSmith
🔴DeveloperLangSmith is LangChain's commercial observability, evaluation and prompt management platform for LLM apps and agents in production.
Key Features:
- •Tracing for any LLM stack via Python/TypeScript SDKs or OpenTelemetry
- •LLM-as-judge, code-based and pairwise evaluations
- •Versioned prompts with production A/B traffic splits
Free Developer tier; Plus $39/user/month; Enterprise custom
Latitude
🔴Developeran open-source AI agent monitoring and observability platform for understanding what agents do in production.
Key Features:
Custom
PandaProbe
🔴DeveloperOpen-source AI agent engineering platform for tracing, evaluating, and debugging agent runs across any framework and LLM provider.
Key Features:
Custom
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