LLM Observability Tools
Compare LLM observability and monitoring platforms. Track costs, latency, quality, and debug AI applications in production.
Full Platform
Full-stack observability for LLM apps by LangChain. Tracing, evaluation, datasets, and monitoring in one platform.
Open-source LLM engineering platform. Tracing, prompt management, evaluations, and cost analytics.
Observability
Open-source LLM observability with one-line integration. Tracks costs, latency, and usage across all major providers.
AI Gateway
We track 6 llm observability tools tools. LangSmith is among the most popular options. See our full directory above for pricing, features, and open-source status of each tool.
Yes, several llm observability tools offer free tiers or are fully open-source. Check the pricing column in our directory to find free and open-source options.
Consider your specific needs: budget (free vs paid), whether you need open-source, integration requirements, and the specific AI models you want to use. Our directory includes feature highlights to help you compare.