Platform to test, evaluate and observe LLM and voice AI agents, with prompt management and red-teaming for production.
What it does
LangWatch is an AI agent testing and evaluation platform. It runs realistic scenario simulations against agents, measures response quality, and provides observability into cost and latency, plus prompt management, governance, voice-agent testing and LLM red-teaming.
How to use: LangWatch integrates into any tech stack and supports various LLMs and frameworks. Users can monitor, evaluate, and get business metrics from their LLM applications, create data to iterate, and measure real ROI. Domain experts can be brought onboard to bring human evals into workflows.
Core features
Best for
Pricing
Reviews
Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.
Tutorials
Step-by-step: exactly how to get things done with it.