Las mejores plataformas de Observabilidad de LLMs en 2026: precios y características
Trazas, evals y monitoreo de calidad para apps con LLMs — costo por request, drift y reproducibilidad. Compara las 3 plataformas de observabilidad de llms del catálogo Staxly: Helicone, LangSmith, Langfuse. Las opciones con tier gratuito incluyen Helicone, LangSmith, Langfuse. Los planes pagos arrancan desde $29/mes con Langfuse. Los datos provienen directamente de la documentación oficial de cada vendor — sin alucinaciones de LLM.
LLM Observability (3 platforms compared). Tracing, evals, and quality monitoring for LLM apps — cost-per-request, drift, and reproducibility. Browse pricing tiers, free-tier limits, and feature counts side-by-side. Every figure is sourced from vendor docs and reviewed by a human — no LLM guesswork.
Data sourced from vendor documentation · Last updated June 2026
LLM observability platforms trace every request through your AI pipeline, tracking cost, latency, quality scores, and prompt drift over time. Key factors are trace volume limits, eval framework support, integration with your LLM provider, and cost attribution per feature.
Comparison table
| Platform | Tagline | Pricing | Features | |
|---|---|---|---|---|
| Helicone | Open-source LLM observability — 1-line integration via proxy | Free + from $79/mo | 16 | |
| LangSmith | LLM observability, testing & evaluation — by LangChain | Free + from $39/mo | 14 | |
| Langfuse | Open-source LLM engineering platform — observability, prompts, evals | Free + from $29/mo | 16 |