NNext is an open source platform that provides observability and monitoring capabilities for large language models (LLMs), helping developers debug and improve models.

Helicone

Freemium

Web

llm monitoring

Helicone is an open-source LLM observability and monitoring platform designed for developers to monitor, debug, and improve AI applications confidently.

LangWatch

Freemium

Web

llm monitoring

LangWatch is an all-in-one platform to manage your entire LLM-powered application lifecycle. Monitor, Evaluate & Optimize your LLM performance.

Keywords AI

Freemium

Web

llm monitoring

Keywords AI is an LLM observability platform designed for AI startups, offering unified API endpoints, debugging tools, and performance monitoring for LLM workflows.