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LangWatch

LLM observability and evaluation platform for monitoring, evaluating, and optimizing LLM applications.

The AI REPORT pick
Dev Tools
Engineering
Subscription (monthly/yearly)
Overview
ABOUT

LangWatch is an LLM observability and evaluation platform designed to help AI teams monitor, evaluate, and optimize their LLM-powered applications. It provides full visibility into prompts, variables, tool calls, and agents across major AI frameworks, enabling faster debugging and smarter insights. LangWatch supports both offline and online checks with LLM-as-a-Judge and code-based tests, allowing users to scale evaluations in production and maintain performance. It also offers real-time monitoring with automated anomaly detection, smart alerting, and root cause analysis, along with features for annotations, labeling, and experimentations.

USE CASE

Engineering

KEY FEATURES

LLM Observability; LLM Evaluation; LLM Optimization; AI agent testing; LLM Guardrails; LLM User Analytics

Meta
Subscription (monthly/yearly)
$500–999/month
β†’ Go to Pricing Page
Startup (1–10)
United States

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