Helicone — Observability, Prompts & Evals Platform
Observability, Prompts & EvalsLayer 4What is Helicone?
Helicone is an open-source AI Gateway and LLM Observability platform that enables developers to route, debug, and analyze their AI applications with end-to-end visibility from user sessions to individual token decisions. As a Y Combinator-backed company, Helicone combines observability with infrastructure management, offering token-level cost analysis, prompt version tracking, and session tracing alongside intelligent routing features like caching, rate limiting, and load balancing. The platform provides real-time dashboards, user metrics tracking, alert systems, and multi-step LLM interaction visualization for root cause analysis. Helicone is SOC 2 Type II certified, HIPAA compliant, and offers flexible deployment options including cloud-hosted gateway leveraging Cloudflare's global network, self-hosted via Kubernetes Helm charts, or SDK-only observability without proxying.
Pros & Cons
Pros
- +Open-source with 5.2K GitHub stars and strong community support
- +Minimal latency overhead (under 1ms for self-hosted)
- +Flexible deployment options including cloud-hosted, self-hosted, or SDK-only
- +Y Combinator-backed with SOC 2 Type II and HIPAA compliance
- +No code changes required for AI Gateway features like caching and rate limiting
Cons
- -Adds computational cost and one network hop for cloud deployment
- -Limited pricing transparency on website
- -May require infrastructure expertise for self-hosted setup
Helicone Pricing
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