A side-by-side of two observability for building AI agents — live GitHub data, languages, and what each is best at.
| Langfuse | Helicone | |
|---|---|---|
| GitHub stars | ★ 30k | ★ 5.9k |
| Language | TypeScript | TypeScript |
| Category | Observability | Observability |
| Best for | LLM tracing | cost tracking |
| Repository | langfuse/langfuse | Helicone/helicone |
Langfuse and Helicone are both credible choices. By community traction, Langfuse leads (★ 30k). Pick Langfuse for LLM tracing; pick Helicone for cost tracking.
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