Observability

Tracing, evals, telemetry, and monitoring for agent systems

Observability

Harvey Legal Agent Benchmark — what the all-pass scoring actually means

Harvey Legal Agent Benchmark brings 1,200+ legal tasks and all-pass grading to agent evals, raising the bar for what counts…

17 Min Read

LLM observability stack 2026: Langfuse, Helicone, LangSmith, or Arize?

LLM observability stack 2026: how to choose Langfuse, Helicone, LangSmith, or Arize Phoenix using real trade-offs and working Python examples.

19 Min Read

LLM Evaluation Strategy 2026 — A Decision Tree for Builders

Teams rarely fail at LLM evaluation because they lack metrics; they fail because they pick the wrong evaluation mode for…

33 Min Read

LangSmith Production Setup for Multi-Agent Observability

This tutorial walks through a practical LangSmith production setup for a Python LangGraph application in 2026: tracing a multi-agent workflow,…

24 Min Read

Top 7 AI Agent Evaluation Tools in 2026

AI agent teams in 2026 need more than traces and dashboards. They need repeatable evaluation pipelines, prompt and dataset versioning,…

21 Min Read

LangSmith vs Langfuse: The Complete 2026 Comparison

LangSmith vs Langfuse — the complete 2026 comparison of LangChain's managed LLM observability platform against the leading open-source alternative. Features,…

12 Min Read