Helicone

WHAT IS HELICONE? Helicone is an open-source observability platform designed for developers building with large language models (LLMs). It provides comprehensive monitoring, logging, and analytics for LLM API calls, helping teams track performance, costs, and usage patterns in real-time. WHO IS IT FOR? • AI/ML engineers building LLM-powered applications • Development teams needing LLM cost visibility and optimization • Startups and enterprises monitoring AI infrastructure • Developers integrating multiple LLM APIs KEY FEATURES • Real-time monitoring — Track LLM API calls and responses instantly • Cost analytics — Monitor spending across different models and providers • Request logging — Detailed logs of all LLM interactions • Performance metrics — Latency, token usage, and success rates • Open-source — Transparent, self-hostable architecture • Multi-provider support — Works with OpenAI, Anthropic, and other LLM APIs PROS • Completely free and open-source • Easy integration with existing LLM workflows • Comprehensive cost tracking for budget management • Real-time visibility into API performance • No vendor lock-in with self-hosting option CONS • Requires technical setup and integration • Self-hosting demands infrastructure knowledge • Limited features compared to some enterprise alternatives • Smaller community than established monitoring platforms