Helicone AI
The open-source LLM observability for developers.
The open-source LLM observability for developers.

Request Logging & Tracking
Detailed logging of all LLM API calls with full request/response visibility
Cost Monitoring
Real-time tracking of LLM API usage and associated costs across different models
Latency Analysis
Performance monitoring to identify slow requests and optimise response times
Model Routing
Intelligent request routing across multiple LLM providers for reliability and cost optimization
Error Tracking
thorough error logging and debugging tools to identify and fix issues
Custom Metadata
Ability to attach custom tags and metadata to requests for advanced filtering and analysis
Monitoring production AI applications to ensure reliability and performance
Cost optimization for teams using multiple LLM API providers
Debugging LLM application issues and understanding user interactions
Performance optimization by identifying bottlenecks in AI workflows
Multi-model testing and comparison to select best providers for specific use cases