#["agent evaluation" Articles

How to Evaluate AI Agents on Long-Horizon Tasks in 2026 (Sim, Real-World, and the Digital-Clone Hybrid)

AI agents now run businesses for months at a time. Here is how to actually test them, what breaks, and why your simulator may be fooling you. Last verified July 2026.

18 min30

Agent Evaluation Is a Rollout: How to Treat Your AI Agent Like a Machine Learning Model in 2026

Agent evaluation is a rollout problem, not a unit-test problem. Here's how the ML-to-agent mental model works, the environment-sandbox-verifier pattern, and the frameworks changing the game in 2026.

16 min30

How to Build an Agent Benchmark From Production Traces in 2026: The Simulation Playbook

Agent benchmark evaluation needs production-derived simulations, not public leaderboards. Here's how to build one from your own traces—and why pass^k matters more than pass@k.

16 min00