The 4 best LLM monitoring tools to understand how your AI agents are performing in

LLM applications require advanced monitoring due to their unique failure modes, such as prompt changes that may not affect test cases but can cause production issues, unexpected token cost spikes, and gradual quality degradation. Effective LLM monitoring goes beyond traditional metrics, focusing on the accuracy, relevance, and safety of AI responses in production environments. Tools like Braintrust, Loop, Vellum, Fiddler, and LangSmith provide various features to track performance, manage costs, and detect quality drift. Braintrust stands out for its unified approach to evaluation and production monitoring, offering real-time cost tracking, automated dataset generation, and a feedback loop that converts production traces into test cases. By harnessing online scoring and GitHub integrations, teams can preemptively identify and address quality issues before they impact users, optimize token usage, and ensure robust AI operations across different frameworks.