Overview
Helicone — LLM observability and analytics
Helicone is an open-source LLM observability platform that sits as a proxy in front of OpenAI, Anthropic, and other LLM APIs. It provides request logging, cost tracking, caching, prompt versioning, and analytics with minimal code changes required.
Proxy-based LLM logging
Cost and token tracking
Prompt caching layer
User and session analytics
Features & capabilities
Everything it does, in plain English.
FeatureProxy-based LLM loggingIncluded
FeatureCost and token trackingIncluded
FeaturePrompt caching layerIncluded
FeatureUser and session analyticsIncluded
FeaturePrompt playgroundIncluded
FeatureAlerts and anomaly detectionIncluded
FeatureOpen sourceIncluded
API AccessProgrammatic access available for developers.Available
PlatformsAPI Proxy
The honest take
Where it shines, where it stumbles.
✓ Pros
- ✓Zero code change to integrate
- ✓Open source
- ✓Good caching can save costs
- ✓Simple and effective
! Watch-outs
- !Proxy adds latency (minimal)
- !Less comprehensive than Langfuse for evaluation
- !Smaller community
Who it's for
Where Helicone pays for itself fast.
— Use case
LLM production monitoring
— Use case
Cost optimization
— Use case
Prompt management
— Use case
User analytics
— Use case
Performance debugging
Community reviews
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