Comprehensive Review of 6 LLM Monitoring Tools

The author tested 6 LLM monitoring tools over 2 weeks and shared their findings, including strengths, weaknesses, and pricing for each tool.

Details

The author, who built the DriftWatch tool, tested 6 different LLM monitoring solutions over a 2-week period. The tools evaluated were DriftWatch, Helicone, Portkey, Athina, Braintrust, and a custom built-in logging solution. The author assessed the tools based on criteria such as drift detection accuracy, cost tracking granularity, latency monitoring, ease of integration, alerting options, and pricing. For each tool, the author provided detailed reviews, highlighting the strengths and weaknesses. DriftWatch was praised for its purpose-built drift detection capabilities and affordable pricing, while Helicone was noted for its strong API tracking and open-source nature. Portkey and Athina were described as enterprise-grade and expensive, while Braintrust was more focused on model evaluation rather than real-time production monitoring. The custom built-in logging solution was deemed worth it only if you have specific requirements that existing tools don't meet. The author's honest recommendation is to start with either DriftWatch or Helicone, depending on whether drift detection or broader API observability is the primary concern. Portkey and Athina were deemed too expensive for smaller teams, and Braintrust was considered more suitable for evaluation rather than production monitoring.