A side-by-side of two observability for building AI agents — live GitHub data, languages, and what each is best at.
| Helicone | Langfuse | |
|---|---|---|
| GitHub stars | ★ 5.8k | ★ 29k |
| Language | TypeScript | TypeScript |
| Category | Observability | Observability |
| Best for | cost tracking | LLM tracing |
| Repository | Helicone/helicone | langfuse/langfuse |
Helicone and Langfuse are both credible choices. By community traction, Langfuse leads (★ 29k). Pick Helicone for cost tracking; pick Langfuse for LLM tracing.
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