FDE-Gym benchmark: best agent fully solves only 14 of 95 real customer-delivery tasks

dair_ai · x · 2026-10-16

FDE-Gym tests agents as forward-deployed engineers on 95 tasks from real delivery projects across 18 sectors, with scripted stakeholders and production-like systems. Scoring rewards improving the customer's own success metric while penalizing extra messages, trial runs and waiting time. Across 13 configurations from 7 providers, the top mean score is 0.56 and only 14 tasks are fully resolved. The main failure mode: missing unstated constraints. Scores also collapse as task instructions become less explicit (L0→L3).

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