Helicone
Helicone is an observability platform designed for Large Language Model (LLM) applications to help developers route, debug, and analyze their AI deployments.
Free + paidWebOpen sourceMultimodal
Visit websitehelicone.ai
Compare with book-to-skillExplore Helicone alternativesOverview
Helicone is an observability platform designed for Large Language Model (LLM) applications to help developers route, debug, and analyze their AI deployments. It provides tools for monitoring requests, managing user interactions, and optimizing performance across various LLM providers. Key features include a gateway with caching and rate limiting, comprehensive prompt management, and configurable data retention controls. The platform supports usage-based pricing and offers a free tier for initial testing.
Key features
- Observability and monitoring of LLM requests and sessions
- Gateway with caching, rate limits, and automatic fallbacks
- Prompt management, testing, and scoring capabilities
Pros & cons
Collected from user feedback found in web search
Pros
- Generous free tier with 10,000 requests per month
- Fastest time-to-value - implementation in minutes with single line code change
- Cost optimization through caching reducing API costs by 20-30%
- Comprehensive built-in features: tracing, retries, evals, model comparison
- Built-in security powered by Meta's models detecting prompt injections
Cons
- Vendor lock-in risk from sitting in critical request path
- Proxy architecture means Helicone downtime causes LLM call failures
- Added latency from network round-trip to proxy for every request
- Limited visibility into application context and internal app state
- Dependency on Helicone infrastructure for application reliability
Pricing
Use cases
- Debugging and analyzing LLM application logs
- Monitoring costs and performance of AI models
- Managing and testing prompts for optimization
Who it is for
DevelopersData scientists
Integrations
OpenAIAnthropicLangChainLlamaIndexVercel AI SDKAzure OpenAIGoogle GeminiZapierMistral
Tags
API
How we verified this
Company, pricing, and feature details come from the primary sources below and our latest verification pass. When sources disagree, the official source and the most recent check win.
Last verified 08/02/2026Verified sources: 3
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