Jun 6, 2026AI Infrastructure
Langfuse vs Helicone: LLM Observability and Monitoring Tools in 2026
Most teams discover they need LLM observability after their first production incident, not before it. A prompt regresses silently, costs spike without warning, or a downstream integration starts returning garbage. By the time someone notices, the damage is already done. The right observability tool turns that reactive posture into a proactive one.